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349 results on '"Kordyasz A."'

101. Weak channels in backscattering of20Ne onnatNi,118Sn, and208Pb

Author

Mikko Sillanpää, A. Trzcińska, S. Kliczewski, I. Strojek, E. Koshchiy, Aleksandra Piórkowska, E. Piasecki, K. Rusek, M. Kowalczyk, W. Czarnacki, A.J. Kordyasz, T. Krogulski, Wladyslaw Henryk Trzaska, S. V. Khlebnikov, M. Kisieliński, A. Staudt, T. Loktev, Manfred Mutterer, N. Keeley, and Sergei Smirnov

Subjects
Physics, Nuclear and High Energy Physics, Coulomb barrier, Atomic physics, Ion
Abstract

To further our understanding of the influence of weakly coupled channels on the distribution of Coulomb barrier heights, we have measured transfer cross sections for ${}^{20}$Ne ions backscattered from ${}^{\mathrm{nat}}$Ni, ${}^{118}$Sn, and ${}^{208}$Pb targets at near-barrier energies. The $Q$ value spectrum in the case of ${}^{208}$Pb target has been determined too. The transfer channels appear to be especially important for ${}^{208}$Pb, whose double-closed-shell nature leads to a relatively low level density for noncollective inelastic excitations.

Published
2012
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102. Structure effects in Ne-20+Pb-208 quasi-elastic scattering

Author

Strojek, I., Czarnacki, W., Gawlikowicz, W., Keeley, N., Kisieliński, M., Kliczewski, S., Kordyasz, A., Koshchiy, E., Kowalczyk, M., Piasecki, E., Piórkowska, Aleksandra, Rusek, K., Siudak, R., Staudt, A., and Trzcińska, A.

Subjects
rozpraszanie neutronów, reakcje jądrowe, reakcje ciężkich jonów
Abstract

Preliminary results of an analysis of experiments devoted to a study of the sensitivity of the 20Ne + 208Pb quasi-elastic angular distributions at two near-barrier energies and the previously measured corresponding barrier distribution to the value of the nuclear quadrupole deformation length of 20Ne are reported.

Published
2012

103. Weak channels in backscattering of ^{20}Ne on ^{nat}Ni, ^{118}Sn, and ^{208}Pb

Author

Piasecki, E., Czarnacki, W., Keeley, N., Kisielinski, M., Kliczewski, S., Kordyasz, A., Kowalczyk, M., Khlebnikov, Sergey, Koshchiy, E., Krogulski, T., Loktev, T., Mutterer, Manfred, Piorkowska, A., Rusek, K., Sillanpää, Mikko, Staudt, A., Strojek, I., Smirnov, S., Trzaska, Wladyslaw, and Trzcinska, A.

Subjects
Theoretical nuclear physics
Abstract

To further our understanding of the influence of weakly coupled channels on the distribution of Coulomb barrier heights, we have measured transfer cross sections for 20Ne ions backscattered from natNi, 118Sn, and 208Pb targets at near-barrier energies. The Q value spectrum in the case of 208Pb target has been determined too. The transfer channels appear to be especially important for 208Pb, whose double-closed-shell nature leads to a relatively low level density for noncollective inelastic excitations. peerReviewed

Published
2012

104. Effects of irradiation of energetic heavy ion on digital pulse shape analysis with silicon detectors

Author

Barlini, S, Carboni, S, Le Neindre, N, Bini, M, Borderie, B, Bougault, R, Casini, G, Edelbruck, P, Olmi, A, Pasquali, G, Poggi, G, Rivet, M F, Stefanini, A A, Scarlini, E, Catelani, A, Baiocco, G, Berjillos, R, Bonnet, E, Bruno, M, Chbihi, A, Dueñas, J A, Gramegna, F, Kordyasz, A, Kozik, T, Kravchuk, V L, Lopez, O, Marchi, T, Morelli, L, Parlog, M, Piantelli, S, Rosato, E, Vient, E, and Vigilante, M

Subjects
Nuclear Physics - Experiment
Published
2012

105. The age of cows as a factor shaping the antioxidant level during a nutritional experiment with fish oil and linseed supplementation for increasing the antioxidant value of milk

Author

Teresa Nałȩcz‐Tarwacka, Kamila Puppel, Marcin Gołȩbiewski, Marta Kordyasz, H. Grodzki, and Beata Kuczyńska

Subjects
Antioxidant, medicine.medical_treatment, alpha-Tocopherol, Lactoglobulins, Biology, Antioxidants, Fish Oils, Pregnancy, Flax, medicine, Animals, Humans, Food science, Vitamin A, Nutrition and Dietetics, Lactoferrin, Fatty Acids, Age Factors, food and beverages, Modified milk ingredients, Fish oil, beta Carotene, Diet, Antioxidant capacity, Parity, Milk, Dietary Supplements, Seeds, biology.protein, Research studies, Cattle, Female, Plant Preparations, Agronomy and Crop Science, Food Science, Biotechnology
Abstract

BACKGROUND: So far, in research studies, the age of cows has not been considered as a factor that may influence the changes in the content of milk ingredients with antioxidant properties modified by the feed supplementation. The aim of this study was to determine the influence of supplementation on the content of ingredients having antioxidant properties and to determine the influence of the age of cows taking part in the experiment on these changes. The experiment was conducted using 20 Polish Holstein Friesian cows, 10 primiparous and 10 multiparous. The combined supplementation of fish oil and linseed constituted the experimental factor. RESULTS: The milk of primiparous cows after 21 days of supplementation was characterised by a higher content of C18:1 trans-11, C18:2 cis-9, trans-11, α-retinol, α-tocopherol and β-lactoglobulin compared to the milk of multiparous cows, in which a higher level of lactoferrin, C20:5 and β-carotene was recorded. In both groups an increase in the total antioxidant status was noted (a higher level in the milk of primiparous cows). CONCLUSIONS: Modification of the diet of cows with fish oil and linseed significantly influenced antioxidant properties of their milk; however, the response of multiparous and primaparous cows was noticeably different to the supplement introduced. Copyright © 2012 Society of Chemical Industry

Published
2011

106. Decay properties of long-lived isomers in the odd-oddN=81nucleusTb146compared to theHo148andTm150nuclei

Author

A.J. Kordyasz, E. Grodner, K. Hadynska-Klek, M. Kisieliński, T. Morek, J. Srebrny, M. Zielinska, J. Perkowski, J. Mierzejewski, A. Korman, P. J. Napiorkowski, J. Andrzejewski, R. M. Lieder, M. Kowalczyk, J. Kownacki, K. Wrzosek-Lipska, Ch. Droste, and E. Ruchowska

Subjects
Physics, Nuclear reaction, Nuclear and High Energy Physics, Spins, Neutron emission, Excited state, Gamma spectroscopy, Atomic physics, Spectroscopy, Electron spectroscopy, Radioactive decay
Abstract

Excited states of the $^{146}\mathrm{Tb}$ nucleus have been studied using $\ensuremath{\gamma}$-ray and electron spectroscopy in off-beam and in-beam modes following $^{112}\mathrm{Sn}$($^{40}\mathrm{Ar}$,$3n3p$) reaction with the use of the OSIRIS-II, HPGe detector array and the conversion electron spectrometer. The multipolarity of the 343 keV transition deexciting the $({7}^{\ensuremath{-}})$ level in $^{146}\mathrm{Tb}$ shows mainly an $E2$ nature and the first excited state above the 23 s isomer is assigned as a $({5}^{\ensuremath{-}},{6}^{\ensuremath{-}})$ state. The log $\mathit{ft}$ values have been deduced for 11 ${\ensuremath{\beta}}^{+}/$EC transitions populating excited states in $^{146}\mathrm{Gd}$. The systematic behavior of spins and parities of the long-lived levels at $0+x$ keV and the first excited states above them in the $N=81$ isotones $^{146}\mathrm{Tb}$, $^{148}\mathrm{Ho}$, and $^{150}\mathrm{Tm}$ is discussed.

Published
2011
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107. Decay properties of long-lived isomers in the odd-odd N = 81 nucleus Tb $° {146}$ compared to the Ho $^{148}$ and Tm $^{150}$ nuclei

Author

Kownacki, J., Droste, Ch., Wrzosek-Lipska, K., Zielińska, M., Kordyasz, A., Korman, A., Hadyńska-Klęk, K., Grodner, E., Mierzejewski, J., Srebrny, J., Morek, T., Ruchowska, E., Lieder, R. M., Kisieliński, M., Kowalczyk, M., Andrzejewski, J., Perkowski, J., and Napiorkowski, P. J.

Subjects
ddc:530, Nuclear Experiment
Abstract

Excited states of the Tb146 nucleus have been studied using γ-ray and electron spectroscopy in off-beam and in-beam modes following Sn112(Ar40,3n3p) reaction with the use of the OSIRIS-II, HPGe detector array and the conversion electron spectrometer. The multipolarity of the 343 keV transition deexciting the (7−) level in Tb146 shows mainly an E2 nature and the first excited state above the 23 s isomer is assigned as a (5−,6−) state. The log ft values have been deduced for 11 β+/EC transitions populating excited states in Gd146. The systematic behavior of spins and parities of the long-lived levels at 0+x keV and the first excited states above them in the N=81 isotones Tb146, Ho148, and Tm150 is discussed

Published
2011
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108. Front-end electronics for the FAZIA experiment

Author

Salomon, F., primary, Edelbruck, P., additional, Brulin, G., additional, Borderie, B., additional, Richard, A., additional, Rivet, M.F., additional, Verde, G., additional, Wanlin, E., additional, Boiano, A., additional, Tortone, G., additional, Poggi, G., additional, Bini, M., additional, Casini, G., additional, Barlini, S., additional, Pasquali, G., additional, Valdré, S., additional, Petcu, M., additional, Bougault, R., additional, Neindre, N. Le, additional, Alba, R., additional, Bonnet, E., additional, Bruno, M., additional, Chbihi, A., additional, Cinausero, M., additional, Dell'Aquila, D., additional, Préaumont, H. De, additional, Duenas, J.A., additional, Fable, Q., additional, Fabris, D., additional, Francalanza, L., additional, Frankland, J.D., additional, Galichet, E., additional, Gramegna, F., additional, Gruyer, D., additional, Guerzoni, M., additional, Kordyasz, A., additional, Kozik, T., additional, Torre, R. La, additional, Lombardo, I., additional, Lopez, O., additional, Mabiala, J., additional, Maiolino, C., additional, Marchi, T., additional, Maurenzig, P., additional, Meoli, A., additional, Merrer, Y., additional, Morelli, L., additional, Nannini, A., additional, Olmi, A., additional, Ordine, A., additional, Pârlog, M., additional, Pastore, G., additional, Piantelli, S., additional, Rosato, E., additional, Santonocito, D., additional, Scarlini, E., additional, Spadacini, G., additional, Stefaninni, A., additional, Vient, E., additional, and Vigilante, M., additional

Published
2016
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109. Investigation of $\gamma $-ray Emission in Heavy Ion Induced Fission During the Cyclotron Beam-on Periods

Author

Kownacki, J., primary, Kisieliński, M., additional, Kordyasz, A., additional, Kowalczyk, M., additional, Napiorkowski, P., additional, Srebrny, J., additional, Stolarz, A., additional, Lalkovski, S., additional, Droste, Ch., additional, Ruchowska, E., additional, Czarnacki, W., additional, Korman, A., additional, Sibczyński, P., additional, Andrzejewski, J., additional, Perkowski, J., additional, Janiak, Ł., additional, and Samorajczyk, J., additional

Published
2016
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110. Elastic scattering of a secondary 11Li beam on 28Si at 29 MeV/nucleon

Author

F. Carstoiu, N. K. Skobelev, R. Bimbot, D. Guillemaud-Mueller, S. P. Tretyakova, S.N. Ershov, V. Borrel, S. Dogny, A.J. Kordyasz, P. Roussel-Chomaz, F.A. Gareev, R. Anne, Z. Dlouhy, M. G. Saint-Laurent, S. M. Lukyanov, J. Svanda, F. Pougheon, M. Lewitowicz, L. Nosek, A.C. Mueller, C. Borcea, Yu. E. Penionzhkevich, Grand Accélérateur National d'Ions Lourds (GANIL), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Nuclear reaction, Elastic scattering, Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Scattering, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Inelastic scattering, 01 natural sciences, Nuclear physics, 0103 physical sciences, Woods–Saxon potential, Neutron, 010306 general physics, Nucleon, Beam (structure)
Abstract

The elastic scattering of a secondary 11 Li beam (29 MeV/nucleon) on a 28 Si target has been measured for the first time. To compensate for the low intensity of the secondary beam, an efficient detecting system permitting one to obtain reliable experimental data has been used. An attempt has been made to reproduce the data in a phenomenological analysis and with coupled-channel calculations with a double-folding optical potential, with energy- and density-dependent effective interaction and realistic densities. In coupled-channel calculations with the folding optical potential a better description is achieved if a neutron halo of 11 Li is taken into account.

Published
1993
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111. Quasielastic barrier distributions for theNe20+Ni58,60,61systems: Influence of weak channels

Author

Trzcińska, A., primary, Piasecki, E., additional, Hagino, K., additional, Czarnacki, W., additional, Decowski, P., additional, Keeley, N., additional, Kisieliński, M., additional, Koczoń, P., additional, Kordyasz, A., additional, Koshchiy, E., additional, Kowalczyk, M., additional, Lommel, B., additional, Stolarz, A., additional, Strojek, I., additional, and Zerva, K., additional

Published
2015
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112. Erratum: Nuclear spectroscopy above isomers in67148Ho81and67149Ho82nuclei: Search for core-excited states inHo149[Phys. Rev. C81, 044305 (2010)]

Author

P. J. Napiorkowski, M. Zielińska, J. Andrzejewski, T. Morek, Ch. Droste, K. Wrzosek-Lipska, E. Ruchowska, W. Czarnacki, A.J. Kordyasz, A. Korman, J. Kownacki, K. Hadynska-Klek, J. Srebrny, R. M. Lieder, A. Król, J. Perkowski, E. Grodner, M. Kisieliński, J. Mierzejewski, and M. Kowalczyk

Subjects
Core (optical fiber), Physics, Nuclear and High Energy Physics, Crystallography, Excited state, Nuclear spectroscopy
Published
2010
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114. From Light to Heavy Nuclear Systems, Production and Decay of Fragments Studied with Powerful Arrays

Author

Casini, G., primary, Morelli, L., additional, Barlini, S., additional, Piantelli, S., additional, D'Agostino, M., additional, Baiocco, G., additional, Marchi, T., additional, Abbondanno, U., additional, Ademard, G., additional, Appannababu, S., additional, Bini, M., additional, Bonnet, E., additional, Borderie, B., additional, Bougault, R., additional, Bruno, M., additional, Chbihi, A., additional, Cinausero, M., additional, Degerlier, M., additional, Fabris, D., additional, Frankland, J.D., additional, Gelli, N., additional, Gramegna, F., additional, Gruyer, D., additional, Gulminelli, F., additional, Kordyasz, A., additional, Kozik, T., additional, Kravchuk, V.L., additional, Kulig, P., additional, Le Neindre, N., additional, Lopez, O., additional, Maurenzig, P.R., additional, Olmi, A., additional, Pasquali, G., additional, Pârlog, M., additional, Poggi, G., additional, Rivet, M.F., additional, Rosato, E., additional, Sosin, Z., additional, Spadaccini, G., additional, Stefanini, A.A., additional, Twarog, T., additional, Valdrè, S., additional, Vient, E., additional, and Raduta, A.R., additional

Published
2015
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115. Nuclear spectroscopy above isomers in67148Ho81and67149Ho82nuclei: Search for core-excited states inHo149

Author

P. J. Napiorkowski, J. Andrzejewski, T. Morek, J. Mierzejewski, A.J. Kordyasz, J. Srebrny, E. Grodner, J. Perkowski, M. Kisieliński, R. M. Lieder, K. Hadynska-Klek, W. Czarnacki, K. Wrzosek-Lipska, M. Zielińska, E. Ruchowska, A. Korman, M. Kowalczyk, Ch. Droste, J. Kownacki, and A. Król

Subjects
Physics, Nuclear and High Energy Physics, Crystallography, Excited state, Isotopes of tin, Gamma ray, Elementary particle, Gamma spectroscopy, Atomic physics, Spectroscopy, Electron spectroscopy, Spectral line
Abstract

The excited states of {sup 148}Ho and {sup 149}Ho isotopes are studied using gamma-ray and electron spectroscopy in off-beam and in-beam modes following {sup 112,114}Sn({sup 40}Ar,xnyp) reactions. Experiments include measurements of single gamma-rays and conversion electron spectra as well as gamma-gamma, electron-gamma, gamma-t, and gamma-gamma-t coincidences with the use of the OSIRIS-II 12-HPGe array and conversion electron spectrometer. Based on the present results, the level schemes of {sup 148}Ho and {sup 149}Ho are revised and significantly extended, up to about 4 and 5 MeV of excitation energy, respectively. Spin and parity of 5{sup -} are assigned to the 9.59-s isomer in {sup 148}Ho based on conversion electron results. Previously unobserved gamma rays feeding the 10{sup +} isomer in {sup 148}Ho and the 27/2{sup -} isomer in {sup 149}Ho nuclei are proposed. Shell-model calculations are performed. Possible core-excited states in {sup 149}Ho are discussed.

Published
2010
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116. Test of FAZIA prototypes at LNS

Author

Carboni, S., Bardell, L., Le Neindre, N., Acosta, L., Alba, R., Baiocco, G., Barlini, S., Berjillos, R., Bini, M., Bonnet, E., Borderie, B., Bougault, R., Bruno, M., Casini, G., Chbihi, A., Cruceru, I., Degerlier, M., Ducoin, C., Duenas, J., Edlebruck, P., Galichet, E., Gramegna, F., Kordyasz, A., Kozik, T., Kravchuk, V. L., Lopez, O., Maiolino, C., Marchi, T., Paola Marini, Martel-Bravo, I., Morelli, L., Olmi, A., Pasquali, G., Petrascu, H., Poggi, G., Rivet, M. F., Rosato, E., Sambi, S., Sanchez, A., Santonocito, D., Seredov, V., Stefanini, A. A., Vient, E., Vigilante, M., Laboratoire de physique corpusculaire de Caen (LPCC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Grand Accélérateur National d'Ions Lourds (GANIL), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Normandie Université (NU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Physics::Instrumentation and Detectors, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
Abstract

The response of a few silicon-silicon-CsI(Tl) and silicon-silicon telescopes with high quality detectors developed within the FAZIA collaboration [1] is tested in this work. The silicon detectors were manufactured from “random cut” wafers to avoid channeling effects and are characterized by a high dopant homogeneity. One siliconsilicon telescope was mounted on a rotating platform to compare its response in case of front and rear injection. Another silicon detector was mounted on a motorized support, sliding to angles very close to the beam (~0.5°), in order to measure the effects of radiation damage on energy resolution and PSA. Beams of 84Kr and 129Xe at 35A MeV, impinging on targets of natNi, 93Nb, 120Sn and Au, produced fragments over a large range of charge, mass and energy. The aim was to explore the capabilities of various solutions exploiting the digital techniques of Pulse Shape Analisys (PSA) for the Z and A identification of stopped ions. It has been found that PSA is able to fully discriminate the charge of stopped ions up to the maximum available Z (that of the beam, Z=54). The ΔE-E correlations of the first two silicon detectors can separate all the nuclides up to Z~25 and no difference in resolution between front and rear injection is observed. The experimental data also provide some preliminary information about the effects of radiation damage on energy resolution and PSA for high fluences of heavy ions.

Published
2010

117. Nuclear spectroscopy above isomers in 67 148 Ho 81 and 67 149 Ho 82 nuclei: Search for core-excited states in Ho 149

Author

Kownacki, J., Droste, Ch., Wrzosek-Lipska, K., Zielińska, M., Kordyasz, A., Korman, A., Czarnacki, W., Hadyńska-Klęk, K., Grodner, E., Srebrny, J., Mierzejewski, J., Król, A., Morek, T., Ruchowska, E., Kisieliński, M., Kowalczyk, M., Lieder, R. M., Perkowski, J., Andrzejewski, J., and Napiorkowski, P. J.

Subjects
ddc:530
Abstract

The excited states of Ho148 and Ho149 isotopes are studied using γ-ray and electron spectroscopy in off-beam and in-beam modes following Sn112,114(Ar40,xnyp) reactions. Experiments include measurements of single γ-rays and conversion electron spectra as well as γ-γ, electron-γ, γ−t, and γ−γ−t coincidences with the use of the OSIRIS-II 12-HPGe array and conversion electron spectrometer. Based on the present results, the level schemes of Ho148 and Ho149 are revised and significantly extended, up to about 4 and 5 MeV of excitation energy, respectively. Spin and parity of 5− are assigned to the 9.59-s isomer in Ho148 based on conversion electron results. Previously unobserved γ rays feeding the 10+ isomer in Ho148 and the 27/2− isomer in Ho149 nuclei are proposed. Shell-model calculations are performed. Possible core-excited states in Ho149 are discussed.

Published
2010
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118. NEW DETECTOR SYSTEM FOR SUPER HEAVY ELEMENTS DETECTION

Author

N. Alamanos, A. Wieloch, Louise Stuttge, M. Adamczyk, Francis Hanappe, J. Błocki, Tomasz Kozik, P. Bańka, M. Kisielewski, M. Kowalczyk, A. Gillibert, W. Gawlikowicz, Jean Péter, A. Khouaja, F. Hannachi, E. Piasecki, Ch. Vandamme, L. Manduci, K. Łojek, S. Grévy, R. Hue, A. Drouart, F. de Oliveira Santos, G. Politi, P. Lasko, J.P. Wieleczko, Ch. Stodel, A. Lopez-Martens, A.J. Kordyasz, R. Dayras, Ł. Zosiak, Zbigniew Sosin, Benoît Avez, M. G. Saint-Laurent, Anna Gonciarz, A. Trzcińska, Laboratoire de physique corpusculaire de Caen (LPCC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Grand Accélérateur National d'Ions Lourds (GANIL), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), CSNSM SNO, Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Normandie Université (NU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM)

Subjects
Physics, Nuclear reaction, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Fission, Fermium, Detector, Cyclotron, General Physics and Astronomy, chemistry.chemical_element, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, 7. Clean energy, Particle detector, law.invention, Nuclear physics, chemistry, law, 0103 physical sciences, 010306 general physics, Radioactive decay, Spontaneous fission
Abstract

A new detector system dedicated for very/super heavy elements (VHE/SHE) detection that decay by spontaneous fission is presented. Such a decay mode of nuclei can be found e.g. in the region of Z ≈100 (Fermium). Future experiments realized in the frame of French-Polish collaboration at the cyclotrons in GANIL and in the Heavy Ion Laboratory (HIL), University of Warsaw, is described. The results of test measurements made in the HIL for reactions 20 Ne (8 A . MeV )+120 Sn , 179 Au are presented.

Published
2010
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119. Effects of weakly coupled channels on quasielastic barrier distributions

Author

G. Tiourin, Kouichi Hagino, W. Gawlikowicz, Aleksandra Piórkowska, Ł. Świderski, Sergei Smirnov, T. Krogulski, N. Keeley, S. Kliczewski, Krzysztof Piasecki, I. Strojek, Jerzy Jastrzębski, A. Trzcińska, A.J. Kordyasz, E. Koshchiy, E. M. Kozulin, Wladyslaw Henryk Trzaska, T. Loktev, M. Kisieliński, N. Rowley, M. Kowalczyk, S. V. Khlebnikov, Manfred Mutterer, M. Sillanpää, K. Rusek, A. Staudt, E. Piasecki, Institut de Physique Nucléaire d'Orsay (IPNO), and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)

Subjects
Physics, Nuclear and High Energy Physics, Quasielastic scattering, 010308 nuclear & particles physics, chemistry.chemical_element, Fusion barrier, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, Neon, Distribution (mathematics), chemistry, 0103 physical sciences, Quasiparticle, Absorption (logic), Atomic physics, 010306 general physics, Nuclear Experiment
Abstract

Heavy-ion collisions often produce fusion barrier distributions with structures displaying a fingerprint of couplings to highly collective excitations. Similar distributions can be obtained from large-angle quasielastic scattering, although in this case, the role of the many weak direct-reaction channels is unclear. For $^{20}\mathrm{Ne}+^{90}\mathrm{Zr}$, we have observed the barrier structures expected for the highly deformed neon projectile; however, for $^{20}\mathrm{Ne}+^{92}\mathrm{Zr}$, we find significant extra absorption into a large number of noncollective inelastic channels. This leads to smearing of the barrier distribution and a consequent reduction in the ``resolving power'' of the quasielastic method.

Published
2009
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120. Influence of crystal-orientation effects on pulse-shape-based identification of heavy-ions stopped in silicon detectors

Author

M. D'Agostino, S. Velica, J. De Sanctis, A. Becla, Tomasz Kozik, R. Berjillos, F. Gramegna, E. Geraci, M. F. Rivet, Paola Marini, A. Nannini, A.J. Kordyasz, Mariano Vigilante, Silvia Piantelli, Gabriele Pasquali, V. L. Kravchuk, M. Bruno, Giovanni Casini, G. Vannini, L. Lavergne, Carlo Scian, E. Rauly, P. Edelbruck, R. Bougault, Andrea Stefanini, Giacomo Poggi, A. Ordine, M. Cinausero, J.A. Dueñas, Alessandro Olmi, Elio Rosato, Sandro Barlini, L. Bardelli, Maurizio Bini, F. Negoita, B. Borderie, Laboratoire de physique corpusculaire de Caen (LPCC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), FAZIA, L. Bardelli, M.Bini, G.Casini, G.Pasquali, G.Poggi, S.Barlini, A.Becla, R.Berjillo, B. Borderie, R.Bougault, M.Bruno, M.Cinausero, M.D’Agostino, J.DeSancti, J.A.Duena, P.Edelbruck, E.Geraci, F.Gramegna, A.Kordyasz, T.Kozik, V.L.Kravchuk, L.Lavergne, P.Marini, A.Nannini, F.Negoita, A.Olmi, A.Ordine, S.Piantelli, E.Rauly, M.F.Rivet, E. Rosato, C.Scian, A.A.Stefanini, G.Vannini, S.Velica, and M.Vigilante

Subjects
Nuclear and High Energy Physics, Silicon, Physics::Instrumentation and Detectors, SILICON DETECTORS, chemistry.chemical_element, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, Ion, Crystal, Optics, Crystal orientation effects, Physics::Plasma Physics, Orientation (geometry), 0103 physical sciences, Solid state detectors, 010306 general physics, Instrumentation, Physics, 010308 nuclear & particles physics, business.industry, Detector, Resolution (electron density), Digital sampling, Charge (physics), Pulse (physics), chemistry, CRYSTAL ORIENTATION EFFECTS, PULSE SHAPE ANALYSIS, DIGITAL SAMPLING, IONS STOPPED, Atomic physics, business, Pulse Shape Analysis
Abstract

Current and charge signals have been collected for Se ions at 408 MeV, S at 160 MeV and Ni at 703 MeV, all stopped in silicon detectors. Some detectors were cut 0 ∘ off the 〈 1 1 1 〉 axis and some off the 〈 1 0 0 〉 axis. Important effects on the shape of the silicon current and charge signals have been observed, depending on the orientation of the impinging ion relative to the crystal axes and planes. A degradation of the energy and risetime resolution of about a factor ∼ 3 with respect to the measured optimal values (for example 7 ∘ off-axis orientation) is observed for ion impinging directions close to crystal axes and/or planes, i.e. the common scenario for normal incidence on 0 ∘ cut detectors. For Pulse Shape Analysis applications, the necessity of using such “random” oriented silicon detectors is demonstrated.

Published
2009
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121. Nuclear disassembly of the Pb+Au system atElab=29 MeV per nucleon

Author

J. Colin, E. Schwinn, R. Bougault, J.F. Lecolley, Jerzy Jastrzębski, Edilson Crema, J. Pouthas, L. Pienkowski, U. Jahnke, D. Horn, M. Morjean, E. Piasecki, A. Genoux-Lubain, J. Galin, B. Lott, B. M. Quednau, W. U. Schröder, C. Paulot, S. Bresson, D. Jacquet, A.J. Kordyasz, B. Gatty, Le Brun C, M. Louvel, D. Guerreau, W. Skulski, and Jan Toke

Subjects
Physics, Nuclear reaction, 010308 nuclear & particles physics, Nuclear Theory, General Physics and Astronomy, Nuclear system, Neutron multiplicity, 01 natural sciences, Nuclear physics, 0103 physical sciences, Impact parameter, Atomic physics, Nuclear Experiment, 010306 general physics, Nucleon
Abstract

Nuclei with {ital Z} up to 82 emitted in the {sup 208}Pb+{sup 197}Au reaction at {ital E}{sub lab}=29 MeV per nucleon have been measured as a function of the associated neutron multiplicity. The data reveal the presence of strong correlations between character of a collision and neutron multiplicity. The trends suggest a disassembly of the nuclear system into a large number of nucleons and small fragments in the events with the highest neutron multiplicity. In such events, approximately one-third of the neturons are released from the system and fragment yields decrease in an exponential fashion with increasing mass.

Published
1991
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122. Double sided strip monolithic silicon E-ΔE telescope produced by Quasi-Selective Epitaxy

Author

Kordyasz, A. J. and Kulczycka, E

Subjects
Physics::Instrumentation and Detectors, TASK 10 [10], Astrophysics::Instrumentation and Methods for Astrophysics
Abstract

The problem of cross-talks (induction of signals) from the E detector to the deltaEdetector in a monolithic E-deltaE telescope was solved by the appropriate geometry ofthe telescope. It was shown by a solution of the telegraphic equation describing thetime-dependent evolution of induced signals in the deltaE detector RC line, that forlong and narrow monolithic telescopes the induced signals (cross-talks) were suppressed.These results are experimentally supported by measurements of alpha particleswith the circular monolithic E-deltaE telescope. When alpha particles were measured atthe telescope edge, the induced signal (cross-talk) was decreased. For alpha particlesmeasured at the center of the telescope the amplitude of cross-talk was bigger.Applying these results we have designed a new type of device based on the n+ - n -p+ - n - n+ structures: double-sided strip monolithic silicon E-deltaE telescope. Thedevice is similar to the Radeka double sided strip detector, however, an introducedp+ type buried grounded separating layer isolates the (upper) deltaE strip detectorfrom the (bottom) E strip detector of the telescope.

Published
2008

123. Investigation of $\gamma $-ray Emission in Heavy Ion Induced Fission During the Cyclotron Beam-on Periods

Author

J. Andrzejewski, S. Lalkovski, P. Sibczyński, P. J. Napiorkowski, J. Perkowski, Ł. Janiak, A. Korman, W. Czarnacki, M. Kowalczyk, Ch. Droste, A.J. Kordyasz, J. Samorajczyk, Anna Stolarz, J. Kownacki, M. Kisieliński, J. Srebrny, and E. Ruchowska

Subjects
Nuclear physics, Physics, Fission, law, Cyclotron, Gamma ray, General Physics and Astronomy, Heavy ion, Beam (structure), law.invention
Published
2016
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124. Deviations from pure target fragmentation in 94A MeV 16O induced heavy ion reactions

Author

H. A. Gustafsson, Lars Westerberg, L. Stab, M. Westenius, A.J. Kordyasz, P. Arve, L. Lavergne-Gosselin, Agneta Oskarsson, A. Kristiansson, Bo Jakobsson, Kjell Aleklett, and J Helgesson

Subjects
Physics, Nuclear and High Energy Physics, Low energy, Fragmentation (mass spectrometry), Excited state, Transverse momentum, Heavy ion, Atomic physics, Nuclear Experiment
Abstract

The emission of low energy, 1 A –6 A MeV, medium size, Z =3–12, fragments in 16 O + 27 Al reactions at 94 A MeV has been studied. In addition to a fragmentation component with ∼ 15 A MeV/ c parallel- and transverse momentum shifts, another component with larger momentum width is needed to describe the results. An attempt to use the VUU prescription indicates that secondary decay from excited primary fragments is important.

Published
1990
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125. STRUCTURE OF BARRIER DISTRIBUTIONS: PROBING THE ROLE OF NEUTRON-TRANSFER CHANNELS

Author

A.J. Kordyasz, M. Kisieliński, Jerzy Jastrzębski, E. Piasecki, A. M. Stefanini, Manfred Mutterer, Ł. Świderski, Krzysztof Piasecki, K. Rusek, T. Krogulski, P. Russotto, M. Kowalczyk, Neil Rowley, Département Recherches Subatomiques (DRS-IPHC), and Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS)

Subjects
Physics, Nuclear and High Energy Physics, Large deformation, 010308 nuclear & particles physics, Projectile, Structure (category theory), General Physics and Astronomy, Deformation (meteorology), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, Excited state, Transfer (computing), 0103 physical sciences, Neutron, Atomic physics, 010306 general physics
Abstract

In view of its large deformation, which should give rise to strong barrier structures, the 20 Ne projectile has been used to study the influence of neutron-transfer channels on the distribution of barrier heights. A previous experiment with a combination of projectiles 20,22 Ne suggested that the role of α-particle transfer channels is small. By an appropriate choice of targets (90 Zr and 92 Zr ), having very similar intrinsic structures (excited states and deformation parameters) but giving rise to different Q-values for neutron transfers, we highlight the role of these channels.

Published
2007
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126. 128Cs as the best example revealing chiral symmetry breaking

Author

K. Starosta, J. Srebrny, A.J. Kordyasz, Takeshi Koike, Ch. Droste, M. Wolińska-Cichocka, E. Grodner, E. Ruchowska, Stanisław G. Rohoziński, M. Kisieliński, W. Plociennik, P. J. Napiorkowski, A.A. Pasternak, T. Morek, J. Kownacki, J. Mierzejewski, J. Perkowski, M. Kowalczyk, and I. Zalewska

Subjects
Physics, Coupling, Chiral anomaly, Explicit symmetry breaking, Spontaneous symmetry breaking, Nambu–Jona-Lasinio model, Quantum mechanics, General Physics and Astronomy, Symmetry breaking, Chiral symmetry breaking, Spin-½
Abstract

The results of the Doppler-shift attenuation method lifetime measurements in partner bands of 128 Cs and 132 La are presented. Experimental reduced transition probabilities in 128 Cs are compared with theoretical calculations done in the frame of the core-quasiparticle coupling model. The electromagnetic properties, energy and spin of levels belonging to the partner bands show that 128 Cs is the best known example revealing the chiral symmetry breaking phenomenon.

Published
2006

127. Absence of structure in the $^{20,22}$Ne + $^{118}$Sn quasi-elastic barrier distribution

Author

Neil Rowley, T. Czosnyka, T. Krogulski, P. Czosnyka, E. Piasecki, Ł. Świderski, A.J. Kordyasz, Jerzy Jastrzębski, M. Kisieliński, Wladyslaw Henryk Trzaska, Manfred Mutterer, Kouichi Hagino, M. Witecki, S. V. Khlebnikov, M. Kowalczyk, Krzysztof Piasecki, Département Recherches Subatomiques (DRS-IPHC), and Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS)

Subjects
Coupling, Nuclear reaction, Physics, Nuclear and High Energy Physics, Elastic Barrier, 010308 nuclear & particles physics, Scattering, 22Ne, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, Coupled channels, Electric field, Quasi-elastic scattering, 0103 physical sciences, Isotopes of tin, 20Ne, 25.70.Bc, 25.70.Hi, 25.70.Jj, Deformation (engineering), Atomic physics, 010306 general physics, Nucleon, Coulomb barrier distribution
Abstract

Motivated by the extreme deformation parameters of the projectile, we have measured quasi-elastic scattering for 20 Ne + 118 Sn. In contrast to calculations based on known collective states, the experimental barrier distribution is structureless. A comparison with the system 22 Ne + 118 Sn shows that this smoothing is unlikely to be due to nucleon- or α -transfer channels, and is more likely to be due to coupling to many other weak channels.

Published
2005
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128. How many fusion barriers ?

Author

Swiderski, L., Czosnyka, P., Kowalczyk, M., Piasecki, E., Piasecki, K., Witecki, M., Kordyasz, A., Kisielinski, M., Krogulski, T., Rowley, N., Marchetta, C., Pagano, A., Mutterer, M., Trzaska, W.H., Hagino, K., Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), and Heyd, Yvette

Subjects
[PHYS.NEXP] Physics [physics]/Nuclear Experiment [nucl-ex], [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
Published
2004

129. Barrier distributions in16O+116,119Snquasielastic scattering

Author

E. Piasecki, T. Krogulski, F. Carstoiu, J. Srebrny, N. Rowley, J. Iwanicki, M. Kowalczyk, J. Jastrzȩbski, Krzysztof Piasecki, Anna Stolarz, K. Rusek, M. Kisieliński, J. Tys, Ł. Świderski, M. Witecki, W. Czarnacki, and A.J. Kordyasz

Subjects
Physics, Nuclear and High Energy Physics, Quasielastic scattering, law, Cyclotron, Atomic physics, Noise (electronics), Beam (structure), law.invention
Abstract

Using the Warsaw cyclotron beam we have determined barrier distributions from the quasielastic scattering of ${}^{16}\mathrm{O}$ on ${}^{116,119}\mathrm{Sn}$ targets. They turned out to be similar in both systems. To improve the signal/noise ratio, digital filters were applied in the data analysis procedure and are discussed in detail. Experimental results were compared with coupled-channels calculations performed using the FRESCO code. Reasonable agreement between experiment and theory was obtained but some disagreements remain.

Published
2002
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130. Investigation of theKπ=8−isomer in132Ce

Author

P. Bednarczyk, W. Gast, J. Srebrny, R. Kaczarowski, E. Wesolowski, K. Starosta, T. Rzaca-Urban, M. Kisieliński, M. Kowalczyk, R. M. Lieder, W. Urban, J. Styczen, W. Mȩczyński, M. Palacz, J. Kownacki, A.J. Kordyasz, Ch. Droste, E. Ruchowska, and T. Morek

Subjects
Physics, Nuclear and High Energy Physics, Atomic physics, Ground state, Energy (signal processing), Excitation
Abstract

The decay of the ${K}^{\ensuremath{\pi}}{=8}^{\ensuremath{-}}$ isomer in ${}^{132}\mathrm{Ce}$ with an excitation energy of 2340.2 keV has been investigated using the ${}^{120}\mathrm{Sn}{(}^{16}\mathrm{O}{,4n)}^{132}\mathrm{Ce}$ reaction. A half-life of 9.4\ifmmode\pm\else\textpm\fi{}0.3 ms was determined. Two new decay paths have been found in the deexcitation of this isomer. The hindrance factors for the $E1,$ $M2,$ and $E3$ transitions deexciting the isomer have been determined. The decay properties of the ${8}^{\ensuremath{-}}$ isomers in the $N=74$ isotones are discussed. A band mixing mechanism involving the ground state and $s$ band seems to be responsible for the behavior of the reduced hindrance factors of the $E1$ transitions deexciting the ${K}^{\ensuremath{\pi}}{=8}^{\ensuremath{-}}$ isomers in these isotones. A $K$ mixing, characteristic of the axially asymmetric nuclei, may account for the reduced hindrance factors of the $E3$ transitions to the ${5}_{\ensuremath{\gamma}}^{+}$ states in ${}^{130}\mathrm{Ba}$ and ${}^{132}\mathrm{Ce}.$

Published
2001
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131. Investigation of the K = 8- isomer in 132Ce

Author

Morek, T., Srebrny, J., Kordyasz, A., Kownacki, J., Palacz, M., Wesolowski, E., Gast, W., Lieder, R. M., Bednarczyk, P., Meczynski, W., Styczen, J., Droste, C., Kowalczyk, M., Rzaca-Urban, T., Starosta, K., Urban, W., Kaczarowski, R., Ruchowska, E., and Kisielinski, M.

Subjects
ddc:530
Published
2001

132. [Neonatal polycythemia: risk of microcirculation disorders]

Author

E, Kordyasz

Subjects
Male, Risk Factors, Microcirculation, Multiple Organ Failure, Infant, Newborn, Humans, Female, Polycythemia
Abstract

The clinical picture and results of treatment of 13 polycythaemic neonates were presented. The possibility of permanent organs failure and even death caused by polycythaemia was considered.

Published
1999

133. New detector system for super heavy elements detection

Author

Wieloch, Andrzej, Sosin, Zbigniew, Bańka, P., Gonciarz, Anna, Péter, Jean, Drouart, A., Dayras, Roland, Łojek, Konrad, Stodel, Ch, Adamczyk, Małgorzata, Avez, Benoît, Lasko, P., Zosiak, Lukasz, Kozik, Tomáš, Alamanos, Nicolas, Gillibert, A., Grévy, Stéphane, Hanappe, Francis, Hannachi, Fazia, Hue, R., Khouaja, A., Lopez-Martens, A., Manduci, L., de Oliveira Santos, François, Politi, Grazia, Saint-Laurent, Marie Genevieve, Stuttge, Louise, Vandamme, Ch, Wieleczko, J.P., Piasecki, Ernest, Trzcińska, Agnieszka, Gawlikowicz, Wojtek, Kisielewski, M., Kowalczyk, Maciej, Kordyasz, Andrzej, Bocki, J., Wieloch, Andrzej, Sosin, Zbigniew, Bańka, P., Gonciarz, Anna, Péter, Jean, Drouart, A., Dayras, Roland, Łojek, Konrad, Stodel, Ch, Adamczyk, Małgorzata, Avez, Benoît, Lasko, P., Zosiak, Lukasz, Kozik, Tomáš, Alamanos, Nicolas, Gillibert, A., Grévy, Stéphane, Hanappe, Francis, Hannachi, Fazia, Hue, R., Khouaja, A., Lopez-Martens, A., Manduci, L., de Oliveira Santos, François, Politi, Grazia, Saint-Laurent, Marie Genevieve, Stuttge, Louise, Vandamme, Ch, Wieleczko, J.P., Piasecki, Ernest, Trzcińska, Agnieszka, Gawlikowicz, Wojtek, Kisielewski, M., Kowalczyk, Maciej, Kordyasz, Andrzej, and Bocki, J.

Abstract

A new detector system dedicated for very/super heavy elements (VHE/SHE) detection that decay by spontaneous fission is presented. Such a decay mode of nuclei can be found e.g. in the region of Z≈100 (Fermium). Future experiments realized in the frame of French-Polish collaboration at the cyclotrons in GANIL and in the Heavy Ion Laboratory (HIL), University of Warsaw, is described. The results of test measurements made in the HIL for reactions 20Ne(8 A.MeV)+120Sn, 179Au are presented. © 2010 World Scientific Publishing Company., SCOPUS: ar.j, info:eu-repo/semantics/published

Published
2010

134. Barrier Height Distributions --- the Influence of Weak Channels

Author

Trzcińska, A., primary, Piasecki, E., additional, Czarnacki, W., additional, Decowski, P., additional, Keeley, N., additional, Kisieliński, M., additional, Kliczewski, S., additional, Koczoń, P., additional, Kordyasz, A., additional, Kowalczyk, M., additional, Khlebnikov, S., additional, Koshchiy, E., additional, Krogulski, T., additional, Lommel, B., additional, Loktev, T., additional, Mutterer, M., additional, Piasecki, K., additional, Strojek, I., additional, Trzaska, W.H., additional, Smirnov, S., additional, Stolarz, A., additional, and Tiourin, G., additional

Published
2014
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136. Barrier Height Distributions --- the Influence of Weak Channels

Author

E. Piasecki, A.J. Kordyasz, A. Trzcińska, I. Strojek, S. Kliczewski, T. Krogulski, Sergei Smirnov, P. Decowski, G. Tiourin, Krzysztof Piasecki, E. Koshchiy, W. Czarnacki, Anna Stolarz, S. V. Khlebnikov, N. Keeley, W. H. Trzaska, Manfred Mutterer, M. Kowalczyk, B. Lommel, M. Kisieliński, P. Koczoń, and T. Loktev

Subjects
Physics, Distribution (number theory), General Physics and Astronomy, Molecular physics, Smoothing
Abstract

The barrier distributions for the 20 Ne+ 58,60,61 Ni systems were experimentally determined. In the 58 Ni case one observes a distinct "structure" in the distribution (two peaks) which is partially damped for 60 Ni and completely smoothed out for 61 Ni. It seems that smoothing is caused by non-collective excitations of the target nuclei.

Published
2014
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137. INVESTIGATION OF γ-RAY EMISSION IN HEAVY ION INDUCED FISSION DURING THE CYCLOTRON BEAM-ON PERIODS.

Author

KOWNACKI, J., KISIELIŃSKI, M., KORDYASZ, A., KOWALCZYK, M., NAPIORKOWSKI, P., SREBRNY, J., STOLARZ, A., LALKOVSKI, S., DROSTE, CH., RUCHOWSKA, E., CZARNACKI, W., KORMAN, A., SIBCZYŃSKI, P., ANDRZEJEWSKI, J., PERKOWSKI, J., JANIAK, Ł., and SAMORAJCZYK, J.

Subjects
HEAVY ions, CYCLOTRONS, ION beams, ISOMERS, NEUTRONS
Abstract

The delayed coincidence method with special reference to the in-beam experiments is considered as a means of identification and the lifetime measurements of isomeric states, as well as, the method of the investigation of radiations populating isomeric states. Isomers are detected and correlated with prompt events if they occur within a certain time of the prompt event. The 16O +208Pb reaction was investigated using the OSIRIS-II and the EAGLE arrays at HIL-UW. About eighty nuclei were identified as fission fragments among the reaction products. Several known isomeric transitions associated with reaction products in neutron-rich nuclei region were detected, as well as some new candidates were observed. [ABSTRACT FROM AUTHOR]

Published
2016
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138. $^8$B studied as a secondary beam at Ganil

Author

N. K. Skobelev, C. Borcea, A.J. Kordyasz, D. Guillemaud-Mueller, A. Fomitchev, V. Borrel, S. M. Lukyanov, J.M. Corre, P. Roussel-Chomaz, F. Carstoiu, R. Anne, Oleg B. Tarasov, Z. Dlouhy, Yu. E. Penionzhkevich, H. Keller, M. Lewitowicz, F. Negoita, D. Bazin, M. G. Saint-Laurent, A.C. Mueller, O. Sorlin, Blanchet, Marie-Christine, Grand Accélérateur National d'Ions Lourds (GANIL), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Horia Hulubei National Institute of Physics and Nuclear Engineering (NIPNE), IFIN-HH, Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Flerov Laboratory of Nuclear Reactions [Dubna] (FLNR), Joint Institute for Nuclear Research (JINR), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Diffraction, Physics, Nuclear and High Energy Physics, Silicon, Spectrometer, 010308 nuclear & particles physics, [PHYS.NEXP] Physics [physics]/Nuclear Experiment [nucl-ex], chemistry.chemical_element, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 7. Clean energy, 01 natural sciences, Dissociation (chemistry), law.invention, Nuclear physics, Telescope, chemistry, law, 0103 physical sciences, Coulomb, Halo, Atomic physics, Nuclear Experiment, 010306 general physics, ComputingMilieux_MISCELLANEOUS
Abstract

The LISE spectrometer at GANIL has been used to form a 8 B secondary beam. Using a multiple silicon telescope, data have been obtained for the reaction and break-up cross sections, as well as for the parallel momentum distribution of 7 Be from break-up. For the first time, separate contributions to the break-up of diffraction and/or Coulomb dissociation and absorption mechanisms have been determined. The ensemble of data supports the existence in 8 B of a “pigmy” halo.

Published
1997
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139. A COMPREHENSIVE STUDY OF FISSION IN 24.3 <font>MEV</font>/NUCLEON <font>U</font> REACTIONS INDUCED ON <font>C</font>, <font>SI</font>, <font>NI</font>, <font>AU</font> TARGETS

Author

B. Gatty, D. Guerreau, Jerzy Jastrzębski, A. Tucholski, M. Morjean, J. Iwanicki, Edilson Crema, L. Pienkowski, M. Lewitowicz, T. Czosnyka, D. Jacquet, E. Piasecki, U. Jahnke, W. Czarnacki, M. Kisieliński, J. Pouthas, M. Muchorowska, A. Chbihi, and A. Kordyasz

Subjects
Nuclear physics, Physics, Fission, Atomic physics, Nucleon
Published
1996
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141. Contributions to the understanding of the $^{8}$B proton halo question

Author

Negoita, F, Borcea, C, Cãrstoiu, F, Lewitowicz, M, Saint-Laurent, M G, Anne, R, Bazin, D, Borrel, V, Corre, J M, Roussel-Chomaz, P, Guillemaud-Müller, D, Keller, H, Müller, A C, Pougheon, F, Sorlin, O, Lukyanov, S, Penionzhkevich, Yu E, Fomichev, A, Skobelev, N K, Tarasov, O V, Dlouhý, Z, and Kordyasz, A

Subjects
Nuclear Physics
Published
1996

142. Publisher's Note: Weak channels in backscattering of20Ne onnatNi,118Sn, and208Pb [Phys. Rev. C85, 054604 (2012)]

Author

Piasecki, E., primary, Czarnacki, W., additional, Keeley, N., additional, Kisieliński, M., additional, Kliczewski, S., additional, Kordyasz, A., additional, Kowalczyk, M., additional, Khlebnikov, S., additional, Koshchiy, E., additional, Krogulski, T., additional, Loktev, T., additional, Mutterer, M., additional, Piórkowska, A., additional, Rusek, K., additional, Sillanpää, M., additional, Staudt, A., additional, Strojek, I., additional, Smirnov, S., additional, Trzaska, W. H., additional, and Trzcińska, A., additional

Published
2012
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143. Weak channels in backscattering of20Ne onnatNi,118Sn, and208Pb

Author

Piasecki, E., primary, Czarnacki, W., additional, Keeley, N., additional, Kisieliński, M., additional, Kliczewski, S., additional, Kordyasz, A., additional, Kowalczyk, M., additional, Khlebnikov, S., additional, Koshchiy, E., additional, Krogulski, T., additional, Loktev, T., additional, Mutterer, M., additional, Piórkowska, A., additional, Rusek, K., additional, Sillanpää, M., additional, Staudt, A., additional, Strojek, I., additional, Smirnov, S., additional, Trzaska, W. H., additional, and Trzcińska, A., additional

Published
2012
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145. Particle identification using the technique and pulse shape discrimination with the silicon detectors of the FAZIA project

Author

Carboni, S., primary, Barlini, S., additional, Bardelli, L., additional, Le Neindre, N., additional, Bini, M., additional, Borderie, B., additional, Bougault, R., additional, Casini, G., additional, Edelbruck, P., additional, Olmi, A., additional, Pasquali, G., additional, Poggi, G., additional, Rivet, M.F., additional, Stefanini, A.A., additional, Baiocco, G., additional, Berjillos, R., additional, Bonnet, E., additional, Bruno, M., additional, Chbihi, A., additional, Cruceru, I., additional, Degerlier, M., additional, Dueñas, J.A., additional, Galichet, E., additional, Gramegna, F., additional, Kordyasz, A., additional, Kozik, T., additional, Kravchuk, V.L., additional, Lopez, O., additional, Marchi, T., additional, Martel, I., additional, Morelli, L., additional, Parlog, M., additional, Petrascu, H., additional, Rosato, E., additional, Seredov, V., additional, Vient, E., additional, Vigilante, M., additional, Alba, R., additional, Santonocito, D., additional, and Maiolino, C., additional

Published
2012
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147. Silicon vertex detector for superheavy elements identification

Author

Kordyasz, A. J., primary, Kowalczyk, M., additional, Kisieliński, M., additional, Bednarek, A., additional, Hadyńska-Klek, M., additional, Wieloch, A., additional, Sosin, Z., additional, Atanasov, D., additional, Sarnecki, J., additional, Brzozowski, A., additional, Jagielski, J., additional, Teodorczyk, M., additional, Gajewski, M., additional, Wiśniewska, A., additional, Krzyżak, K., additional, Gawlik, G., additional, and Zagojski, A., additional

Published
2012
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148. [Septicemia in children treated with exchange transfusions because of hemolytic disease of the newborn]

Author

E, Kordyasz

Subjects
Erythroblastosis, Fetal, Male, Chi-Square Distribution, Rh-Hr Blood-Group System, Risk Factors, Blood Group Incompatibility, Exchange Transfusion, Whole Blood, Infant, Newborn, Humans, Bacteremia, Female, Shock, Septic
Abstract

Clinical signs and laboratory test results were analyzed in 70 neonates (42 boys and 28 girls) hospitalized because of neonatal haemolytic disease who were treated with exchange transfusion and later developed septicaemia. Serological Rh-D incompatibility was diagnosed in 11 children, ABO incompatibility in 59. Signs of infection appeared between days 1 and 7 after transfusion. Pneumonic signs and diarrhoea dominated clinically in 45 newborns, skin abscesses were observed in 10, osteomyelitis in 4. Septic shock occurred in 7. Gram-negative bacteria predominated (52.85%). A significant diagnostic value of the following was found (chi2): granulocytic band forms (expressed as percentagesor = 0.10, a neutrophil index0.2 and toxic granulations in neutrophils. These results were obtained in the early, asymptomatic stage of infection, i.e. before the exchange transfusion was performed. The importance of the presence of risk factors, not exchange transfusion per se, is stressed.

Published
1995

149. The energy dependence of break-up cross-section for light loosely bound nuclei

Author

Borcea, C., Anne, R., Bazin, D., Borrel, V., Carstoiu, F., Corre, Jm, Dlouhy, Z., Fomitchev, A., Guillemaudmueller, D., Keller, H., Kordyasz, A., Lewitowicz, M., Lukyanov, S., Mueller, Ac, Negoita, F., Pecina, I., Penionzhkevich, Y., Saintlaurent, Mg, Skobelev, N., Sorlin, O., Oleg Tarasov, Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), and Saint Simon M. de Sorlin O.

Subjects
[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
Published
1995

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