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Your search keyword '"MISHIN, V. I."' showing total 196 results
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196 results on '"MISHIN, V. I."'

1. beta-decay study of Cu-77

Author

Patronis, N., De Witte, H., Gorska, M., Huyse, M., Kruglov, K., Pauwels, D., Van de Vel, K., Van Duppen, P., Van Roosbroeck, J., Thomas, J. -C., Franchoo, S., Cederkall, J., Fedoseyev, V. N., Fynbo, H., Georg, U., Jonsson, O., Köster, U., Materna, T., Mathieu, L., Serot, O., Weissman, L., Mueller, W. F., Mishin, V. I., and Fedorov, D.

Subjects
Nuclear Experiment
Abstract

A beta-decay study of Cu-77 has been performed at the ISOLDE mass separator with the aim to deduce its beta-decay properties and to obtain spectroscopic information on Zn-77. Neutron-rich copper isotopes were produced by means of proton- or neutron-induced fission reactions on U-238. After the production, Cu-77 was selectively laser ionized, mass separated and sent to different detection systems where beta-gamma and beta-n coincidence data were collected. We report on the deduced half-live, decay scheme, and possible spin assignment of 77Cu.

Published
2009
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11. β-decay of 78Cu produced with the ISOLDE resonance ionization laser ion source

Author

Van Roosbroeck, J., primary, Cederkall, J., additional, De Witte, H., additional, Fedorov, D., additional, Fedoseyev, V. N., additional, Franchoo, S., additional, Fynbo, H., additional, Georg, U., additional, Górska, M., additional, Huyse, M., additional, Jonsson, O., additional, Köster, U., additional, Kruglov, K., additional, Mishin, V. I., additional, Van de Vel, K., additional, Van Duppen, P., additional, and Weissman, L., additional

Published
2003
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14. Laser ionization in β-decay studies of Zn and Mn nuclei

Author

Oinonen, M., Jading, Y., Köster, U., Lettry, J., Ravn, H., Äystö, J., Dendooven, P., Huikari, J., Jokinen, A., Lipas, P. O., Nieminen, A., Peräjärvi, K., Siiskonen, T., Baumann, P., Huck, A., Knipper, A., Ramdhane, M., Walter, G., Didierjean, F., Fedoseyev, V. N., Mishin, V. I., Koizumi, M., Liu, W., Roeckl, E., and Sebastian, V.

Published
2000

28. Beta-decay study of 77Cu

Author

Patronis, N., de Witte, H., Gorska, M., Huyse, M., Kruglov, K., Pauwels, D., van de Vel, K., van Duppen, P., van Roosbroeck, J., Thomas, J.C., Franchoo, S., Cederkall, J., Fedoseyev, V. N., Fynbo, H., Georg, U., Jonsson, O., Köster, U., Materna, T., Mathieu, L., Serot, Olivier, Weissman, L., Mueller, W. F., Mishin, V. I., Fedorov, D., Instituut voor Kern-en Stralingsfysica (IKS), Catholic University of Leuven - Katholieke Universiteit Leuven (KU Leuven), 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), European Organization for Nuclear Research (CERN), Institut Laue-Langevin (ILL), ILL, Commissariat à l'énergie atomique et aux énergies alternatives (CEA), National Superconducting Cyclotron Laboratory, Michigan State University [East Lansing], Michigan State University System-Michigan State University System, Institute of Spectroscopy, Russian Academy of Sciences [Moscow] (RAS), St. Petersburg Nuclear Physics Institute, ISOLDE, 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
n=40, neutron, facility, nucleus, Nuclear Physics - Experiment, closure, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], stability, Nuclear Experiment, cu isotopes
Abstract

A beta-decay study of Cu-77 has been performed at the ISOLDE mass separator with the aim to deduce its beta-decay properties and to obtain spectroscopic information on Zn-77. Neutron-rich copper isotopes were produced by means of proton- or neutron-induced fission reactions on U-238. After the production, Cu-77 was selectively laser ionized, mass separated and sent to different detection systems where beta-gamma and beta-n coincidence data were collected. We report on the deduced half-live, decay scheme, and possible spin assignment of 77Cu. A beta-decay study of Cu-77 has been performed at the ISOLDE mass separator with the aim to deduce its beta-decay properties and to obtain spectroscopic information on Zn-77. Neutron-rich copper isotopes were produced by means of proton- or neutron-induced fission reactions on U-238. After the production, Cu-77 was selectively laser ionized, mass separated and sent to different detection systems where beta-gamma and beta-n coincidence data were collected. We report on the deduced half-live, decay scheme, and possible spin assignment of 77Cu.

Published
2009
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29. β-decay study of ^{77}Cu

Author

Patronis, N., De Witte, H., Gorska, M., Huyse, M., Kruglov, K., Pauwels, D., Van de Vel, K., Van Duppen, P., Van Roosbroeck, J., Thomas, J. C., Franchoo, S., Cederkall, J., Fedoseyev, V. N., Fynbo, H., Georg, U., Jonsson, O., K?ster, U., Materna, T., Mathieu, L., Serot, O., Weissman, L., Mueller, W. F., Mishin, V. I., and Fedorov, D.

Abstract

Physical Review C

Published
2009

30. Nuclear dipole moment of (71)Cu from online beta-NMR measurements

Author

Stone, N J, van Esbroeck, K, Ríkovská-Stone, J, Honma, M, Giles, T, Veskovic, M, White, G, Wöhr, A, Mishin, V I, Fedosseev, V, Köster, U, Mantica, P F, and Walters W B

Subjects
Nuclear Physics - Experiment
Abstract

On-line β-NMR measurements on nuclei oriented at low temperatures of the magnetic dipole moment of Cu71(N=42) are reported, with the result μ(Cu71)=+2.28(1) nuclear magneton (n.m.). The value shows a significant difference from μ(Cu67)=+2.54(2) n.m., revealing asymmetry with respect to N=40. This effect presents a challenge to theoretical interpretation. © 2008 The American Physical Society.

Published
2008

33. beta-decay properties of Ni72 and Cu72

Author

Thomas, J C, De Witte, H, Górska, M, Huyse, M, Kruglov, K, Kudryavtsev, Y, Pauwels, D, Prasad, N V S V, Van de Vel, K, Van Duppen, P, Van Roosbroeck,J, Franchoo, S, Cederkäll, J, Fynbo, H O U, Georg, U, Jonsson, O, Köster, U, Weissman, L, Müller, W F, Fedosseev, V, Mishin, V I, Fedorov, D, De Maesschalck, A, and Smirnova, N A

Subjects
Particle Physics - Experiment
Published
2006

34. Development of the RILIS research laboratory at ISOLDE

Author

Berg, L E, Fedosseev, V, Billowes, J, Blaum, K, Catherall, R, Cederkäll, J, Fedorov, D, Huber, G, Jonson, B, Launila, O, Lindroos, M, Losito, R, Marsh, B A, Mishin, V I, Nilsson, T, Panteleev, V N, Tengborn, E, Tranströmer, G, and Wendt, K

Subjects
Detectors and Experimental Techniques
Published
2006

35. Evolution of the nuclear structure approaching $^{78}$Ni: $\beta$ decay of $^{74-78}$Cu

Author

Van Roosbroeck, J, Cederkäll, J, De Maesschalck, A, De Witte, H, Fedorov, D, Fedosseev, V, Franchoo, S, Fynbo, H O U, Georg, U, Górska, M, Heyde, Kris L G, Huyse, M, Jonsson, O, Köster, U, Kruglov, K, Mishin, V I, Müller, W F, Pauwels, D, Smirnova, N A, Thomas, J C, Van Duppen, P, Van de Vel, K, and Weissman, L

Subjects
Nuclear Physics - Experiment, Nuclear Experiment
Abstract

A beta -decay study of the even mass /sup 74,76,78/Cu isotopes toward levels in /sup 74,76,78/Zn was performed at the ISOLDE mass separator. The copper isotopes were produced in proton- or neutron- induced fission reactions on /sup 238/U, laser ionized, mass separated, and sent to a beta - gamma detection system. Half-lives, decay schemes, and possible spin configurations were obtained for the copper isotopes. The results are compared with calculations using schematic forces as well as large-scale shell-model calculations with realistic forces.

Published
2005

36. Coupling a proton and a neutron to the semi-doubly magic nucleus $^{68}$Ni: A study of $^{70}$Cu via the decay of $^{70}$Ni and $^{70}$Cu

Author

Van Roosbroeck, J, De Witte, H, Górska, M, Huyse, M, Kruglov, K, Van de Vel, K, Van Duppen, P, Franchoo, S, Cederkäll, J, Fedosseev, V, Fynbo, H O U, Georg, U, Jonsson, O, Köster, U, Weissmann, L, Müller, W F, Mishin, V I, Fedorov, D, Walters, W B, Smirnova, N A, Van Dyke, A, De Maesschalck, A, and Heyde, Kris L G

Subjects
Nuclear Physics - Experiment
Published
2004

39. $\beta$-decay studies of $^{135-137}$Sn using selective resonance laser ionization techniques

Author

Shergur, J, Brown, B A, Fedosseev, V, Köster, U, Kratz, K L, Seweryniak, D, Walters, W B, Wöhr, A, Fedorov, D, Hannawald, M, Hjorth-Jensen, M, Mishin, V I, Pfeiffer, B, Ressler, J J, Fynbo, H O U, Hoff, P, Mach, H, Nilsson, T, Wilhelmsen-Rolander, K, Simon, H, and Bickley, A A

Subjects
Nuclear Physics - Experiment
Abstract

The decays of the very neutron rich Sn isotopes $^{135-137}$Sn were studied at CERN/ISOLDE using isotopic and isobaric selectivity achieved by the use of a resonance ionization laser ion source and mass spectroscopy, respectively. Neutron decay rates, $\gamma$-ray singles, and $\gamma\gamma$-coincidence data were collected as a function of time. The half-life ( T$\scriptstyle_{1/2}$ ) and delayed neutron emission probability ( $p_{n}$ ) values of $^{135}$Sn were measured to be 530(20) ms and 21(3)%, respectively. For $^{136}$Sn, a T$\scriptstyle_{1 /2}$ of 250(30) ms was determined along with a $p_{n}\,$ value of 30(5) %. For $\,^{137}$Sn, a T$\scriptstyle_{1/2}$ of 190(60) ms and a $p_{n}$ value of 58(15)% were deduced. Identification of low-energy transitions in $^{135}$Sb was made possible by comparison of laser-on and laser-off $\gamma$-ray spectra. Those data combined with $\gamma\gamma$-coincidence spectra were used to construct a level scheme for $^{135}$Sb that includes an unexpectedly low first excited state at 282 keV. A ground state $\beta$-branch of 33.2% was measured by following the growth and decay of the $^{135}$Sb daughter. Shell-model calculations are consistent with the observed $^{135}$Sb level structure and can account for a lowered first excited state.

Published
2002

40. Magnetic moments of $^{68}$Cu$^{g,m}$ and $^{70}$Cu$^{g,m_{1},m_{2}}$ nuclei measured by in-source laser spectroscopy

Author

Weissman, L, Köster, U, Catherall, R, Franchoo, S, Georg, U, Jonsson, O, Fedosseev, V, Mishin, V I, Seliverstov, D M, Van Roosbroeck, J, Gheysen, S, Huyse, M, Kruglov, K, Neyens, G, and Van Duppen, P

Subjects
Nuclear Physics - Experiment
Abstract

We have obtained information on the atomic hyperfine splitting and, hence, on magnetic moments in neutron rich $^{68, 70}$Cu isotopes by scanning the frequency of the narrow-band laser of the first excitation step in the resonance ionization laser ion source. The deduced magnetic moments are $\mu( ^{68}$Cu$^{g}$, I$^{\pi}$ = 1$^+$) = +2.48(2)(7)$\mu_{N}$ ; $\mu(^{68}$Cu$^{m}$, I$^{\pi}$=6$^{-}$) = +1.24(4)(6)$\mu_{N}$ and $\mu(^{70}$Cu$^{m_{2}}$, I$^{\pi}$=1$^{+}$) = +1.86(4)(6)$\mu_{N}$ ; $\mu(^{70}$Cu$^{g}$, I$^{\pi}$=6$^{-}$) = +1.50(7)(8)$\mu_{N}$. The results of the scans analysis point out on existence of a new isomer in $^{70}$Cu$^{m_{1}}$. It's deduced magnetic moment is (-)3.50(7)(11)$\mu_{N}$ that is in a good agreement with I$^{\pi}$=3$^{-}$ assignment. The method of in-source atomic spectroscopy, as well as the analysis of the obtained data, is described. The results are discussed in terms of single-particle configurations coupled to the $^{68}$Ni core.

Published
2001

42. Laser spectroscopy studies in the neutron-rich Sn region

Author

Cabaret, L A, Crawford, J, Fedosseev, V, Geithner, W, Genevey, J, Girod, M, Hubert, G, Kappertz, S, Lassen, J, Le Blanc, F, Lee, J K P, Le Scornet, G, Mishin, V I, Neugart, R, Obert, J, Oms, J, Pru, S, Pinard, J, Ravn, H L, Roussière, B, Sauvage, J, Verney, D, Essabaa, S, Horn, R, and Ouchrif, A

Subjects
Detectors and Experimental Techniques
Published
2001

45. Laser spectroscopy studies in the neutron-rich Sn region : Proposal

Author

Cabaret, L A., Crawford, J., Fedoseyev, V N., Geithner, W., Genevey, J., Girod, M., Hubert, G., Kappertz, S., Lassen, J., Le Blanc, F., Lee, J K P., Le Scornet, G., Mishin, V I., Neugart, R., Obert, J., Oms, J., Peru, S., Pinard, J., Ravn, H L., Roussiere, B., Sauvage, J., Verney, D., Essabaa, S., Horn, R., Ouchrift, A., Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), 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), ISOLDE, and bibliotheque, LPSC

Subjects
[PHYS.NEXP] Physics [physics]/Nuclear Experiment [nucl-ex], [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
Published
2001

48. First on-line $\beta$-NMR on oriented nuclei: magnetic dipole moments of the $\nu{p}^{-1}_{1/2}; 1/2^-$ ground state in $^{67}$Ni and $\pi{p}^{+1}_{3/2}; 3/2^-$ ground state in $^{69}$Cu

Author

Giles, T, Ríkovská, J, Stone, N J, Van Esbroeck, K, White, G, Wöhr, A, Veskovic, M, Towner, I S, Mantica, P F, Prisciandaro, J I, Morrissey, D J, Fedosseev, V, Mishin, V I, Köster, U, and Walters, W B

Subjects
Nuclear Physics - Experiment
Abstract

The first fully on-line use of the angular distribution of $\beta$ - emission in detection of NMR of nuclei oriented at low temperatures is reported. The magnetic moments of the single valence particle, intermediate mass, isotopes $^{67}$Ni($\nu{p}^{-1}_{1/2}$; 1/2$^{-}$) and $^{69}$Cu($\pi{p}^{+1}_{ 3/2}$; 3/2$^{-}$) are measured to be +0.601(5)$\mu_{N}$ and +2.84(1)$\mu_{N}$ respectively, revealing only a small deviation from the neutron $p_{1/2}$ single-particle value in the former and a large deviation from the proton $p_{3/2}$ single-particle value in the latter. Quantitative interpretation is given in terms of core polarization and meson-exchange currents.

Published
2000

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