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389 results on '"Hager, U."'

101. Direct total cross section measurement of the 16O(α,γ)20Ne reaction at Ec.m.=2.26 MeV

Author

Hager, U., Brown, J.R., Buchmann, L., Carmona Gallardo, M., Erikson, L., Fallis, J., Greife, U., Hutcheon, D., Ottewell, D., Ruiz, C., Sjue, S., and Vockenhuber, C.

Abstract

In stellar helium burning, 16O represents the endpoint of the helium-burning sequence due to the low rate of 16O(α,γ)20Ne. We present a new direct measurement of the total capture reaction rate of 16O(α,γ)20Ne at Ec.m.=2.26MeV employing the DRAGON recoil separator. For the first time, the total S factor and its contributing direct capture transitions could be determined in one experiment. © 2011 American Physical Society., We would like to thank the beam delivery and ISAC operations groups at TRIUMF. The authors gratefully acknowledge funding from the Natural Sciences and Engineering Research Council of Canada and the US DOE Office of Nuclear Physics

Published
2011

102. Reactor Decay Heat in Pu-239: Solving the gamma Discrepancy in the 4-3000-s Cooling Period

Author

Algora, Alejandro, Jordán Martín, M. Dolores, Taín, José Luis, Rubio, Berta, Agramunt, Jorge, Pérez-Cerdán, Ana Belén, Molina Palacios, Francisco Gabriel, Caballero Ontanaya, Luis, Nácher, Enrique, Krasznahorkay, A., Hunyadi, M. D., Gulyás, J., Vitez, A., Csatlós, M., Csige, L., Äystö, Juha, Penttilä, H., Moore, I., Eronen, T., Jokinen, A., Nieminen, A., Hakala, J., Karvonen, P., Kankainen, A., Saastamoinen, A., Rissanen, J., Kessler, T., Weber, C., Ronkainen, J., Rahaman, S., Eloma, V., Rinta-Antila, S., Hager, U., Sonoda, T., Burkard, K., Hueller, W., Batist, L., Gelletly, W., Nichols, A. L., Yoshida, T., Sonzogni, A. A., and Peräjärvi, K.

Abstract

The beta feeding probability of Tc-102,Tc- 104,Tc- 105,Tc- 106,Tc- 107, Mo-105, and Nb-101 nuclei, which are important contributors to the decay heat in nuclear reactors, has been measured using the total absorption technique. We have coupled for the first time a total absorption spectrometer to a Penning trap in order to obtain sources of very high isobaric purity. Our results solve a significant part of a long-standing discrepancy in the gamma component of the decay heat for Pu-239 in the 4-3000 s range., This work was supported by the following projects: Spanish FPA 2005-03993 and FPA2008-06419-C02-01; Hungarian OTKA K72566; the EC Contract No. MERG-CT-2004-506849; the Finnish Center of Excellence Programme 2006-2011, the EU 6th Framework Programme (Contract No. 506065 (EURONS), and the Hungarian-Spanish collaboration program.

Published
2010

103. Constraining the Astrophysical S Factor of the 3He(α,γ)7Be Reaction

Author

Carmona-Gallardo, M., primary, Rojas, A., additional, Singh, B. S. Nara, additional, Akers, C., additional, Aviv, O., additional, Borge, M. J. G., additional, Christian, G., additional, Davids, B., additional, Fallis, J., additional, Fulton, B. R., additional, Hager, U., additional, Haquin, G., additional, Hass, M., additional, Hutcheon, D. A., additional, Nir-El, Y., additional, Ottewell, D., additional, Ruiz, C., additional, Sjue, S. K. L., additional, Tengblad, O., additional, Yaniv, R., additional, and Yungreis, Z., additional

Published
2015
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104. Investigating Single-Particle Structure in 26Na Using the New SHARC Array

Author

Wilson, G. L., primary, Catford, W. N., additional, Diget, C. Aa., additional, Orr, N. A., additional, Matta, A., additional, Hackman, G., additional, Williams, S. J., additional, Simpson, E. C., additional, Celik, I. C., additional, Achouri, N. L., additional, Adsley, P., additional, Al-Falou, H., additional, Ashley, R., additional, Austin, R. A. E., additional, Ball, G. C., additional, Blackmon, J. C., additional, Boston, A. J., additional, Boston, H. C., additional, Brown, S. M., additional, Cross, D. S., additional, Djongolov, M., additional, Drake, T. E., additional, Hager, U., additional, Fox, S. P., additional, Fulton, B. R., additional, Galinski, N., additional, Garnsworthy, A. B., additional, Jamieson, D., additional, Kanungo, R., additional, Leach, K., additional, Orce, J. N., additional, Pearson, C. J., additional, Porter-Peden, M., additional, Sarazin, F., additional, Sjue, S., additional, Smalley, D., additional, Sumithrarachchi, C., additional, Triambak, S., additional, Unsworth, C., additional, and Wadsworth, R., additional

Published
2015
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105. Validation of ICT-based protection and control applications in electric power systems

Author

Kubis, A., primary, Robitzky, L., additional, Kuech, M., additional, Muller, S. C., additional, Jablkowski, B., additional, Georg, H., additional, Dorsch, N., additional, Krey, S., additional, Langesberg, C., additional, Surmann, D., additional, Mayorga, D., additional, Rehtanz, C., additional, Hager, U., additional, Spinczyk, O., additional, Wietfeld, C., additional, Weihs, C., additional, Ligges, U., additional, Myrzik, J., additional, and Gotze, J., additional

Published
2015
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106. Medical ethical guidelines: Intensive-care interventions

Author

Swiss, Academy, primary, Stocker, R, additional, Berner, M, additional, Binet, I, additional, Bürgi, U, additional, Fischer, J, additional, Gardaz, V, additional, Grob, D, additional, Hager, U, additional, Kätterer, C, additional, Kind, C, additional, Ricou, B, additional, Salathé, M, additional, and Wildi, S, additional

Published
2015
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107. Structure of $^{26}$Na via a Novel Technique Using ($d,p\gamma $) with a Radioactive $^{25}$Na Beam

Author

Catford, W.N., primary, Celik, I.C., additional, Wilson, G.L., additional, Matta, A., additional, Orr, N.A., additional, Diget, C.Aa., additional, Adsley, P., additional, Al-Falou, H., additional, Ashley, R., additional, Austin, R.A.E., additional, Ball, G.C., additional, Blackmon, J.C., additional, Boston, A.J., additional, Boston, H.C., additional, Brown, S.M., additional, Cross, D.S., additional, Djongolov, M., additional, Drake, T.E., additional, Hager, U., additional, Fox, S.P., additional, Fulton, B.R., additional, Galinski, N., additional, Garnsworthy, A.B., additional, Hackman, G., additional, Jamieson, D., additional, Kanungo, R., additional, Leach, K., additional, Martin, J-P., additional, Orce, J.N., additional, Pearson, C.J., additional, Porter-Peden, M., additional, Sarazin, F., additional, Sjue, S., additional, Sumithrarachchi, C., additional, Svensson, C.E., additional, Triambak, S., additional, Unsworth, C., additional, Wadsworth, R., additional, and Williams, S.J., additional

Published
2015
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108. The first direct measurement of 17O(α,γ)21Ne and its impact upon s-process abundances

Author

Taggart, M., Hager, U., Laird, A. M., Ruiz, C., Hutcheon, D., Ottewell, D., Fallis, J., Erikson, L., Bentley, M., Brown, J. R., Buchmann, L., Chen, A. A., Jun Chen, Chipps, K. A., D Auria, J., Davids, B., Davis, C., Diget, C. A., Fox, S. P., Fulton, B., Galinski, N., Greife, U., Herwig, F., Hirschi, R., Howell, D., Martin, L., Mountford, D., Murphy, A., Pignatari, M., Reeve, S., Ruprecht, G., Sjue, S., and Veloce, L.

Abstract

An experimental campaign to perform the first accurate measurement of the 17O(a,g)21Ne reaction rate was carried out during May and November 2009 at the DRAGON recoil separator in the TRIUMF laboratory, Vancouver, Canada. The goals were to differentiate between two previous conflicting theoretical predictions, and to establish the (a,g)/(a,n) reaction rate ratio.Two distinct energy regions were scanned: a higher region, Ecm 1.5 MeV, where the recoil cone was sufficiently confined and the cross section sufficiently large so that a statistically significant yield could be achieved, and a lower region, Ecm 0.7 MeV, chosen to approach the astrophysicalenergies and reduce errors from extrapolation. The experiment, performed in inverse kinematics, used the highest intensity beam ever deliveredto DRAGON, 11012 pps of 17O incident on a 4He gas target. An array of 30 Bismuth Germanate (BGO) detectors [1] was used in conjunction with two microchannel plates (MCP) [2] for a local time-of-flight measurement, and ion chamber for coincident event detection.

Published
2010

109. Mass measurements beyond the major r-process waiting point $^{80}$Zn

Author

Baruah, S., Audi, G., Blaum, K., Dworschak, M., George, S., Guénaut, C., Hager, U., Herfurth, F., Herlert, A., Kellerbauer, A., Kluge, H.-J., Lunney, D., Schatz, H., Schweikhard, L., Yazidjian, C., 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), 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
Binding energies and masses, supernovae, Nucleosynthesis in novae, and other explosive environments, FOS: Physical sciences, Nuclear Physics - Experiment, 59<=A<=89, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment (nucl-ex), Nuclear Experiment
Abstract

High-precision mass measurements on neutron-rich zinc isotopes 71m,72-81Zn have been performed with the Penning trap mass spectrometer ISOLTRAP. For the first time the mass of 81Zn has been experimentally determined. This makes 80Zn the first of the few major waiting points along the path of the astrophysical rapid neutron capture process where neutron separation energy and neutron capture Q-value are determined experimentally. As a consequence, the astrophysical conditions required for this waiting point and its associated abundance signatures to occur in r-process models can now be mapped precisely. The measurements also confirm the robustness of the N = 50 shell closure for Z = 30 farther from stability., 4 pages, 3 figures

Published
2008

110. Mass measurements in the vicinity of the r p-process and the nu p-process paths with the Penning trap facilities JYFLTRAP and SHIPTRAP

Author

Weber, C, Elomaa, Vv, Ferrer, R, Frohlich, C, Ackermann, D, Aysto, J, Audi, G, Batist, L, Blaum, K, Block, M, Chaudhuri, A, Dworschak, M, Eliseev, S, Eronen, T, Hager, U, Hakala, J, Herfurth, F, Hessberger, Fp, Hofmann, S, Jokinen, A, Kankainen, A, Kluge, Hj, Langanke, K, Martin, A, Martinez Pinedo, G, Mazzocco, Marco, Moore, Id, Neumayr, Jb, Novikov, Yn, Penttilae, H, Plass, Wr, Popov, Av, Rahaman, S, Rauscher, T, Rauth, C, Rissanen, J, Rodriguez, D, Saastamoinen, A, Scheidenberger, C, Schweikhard, L, Seliverstov, Dm, Sonoda, T, Thielemann, Fk, Thirolf, Pg, and Vorobjev, Gk

Abstract

The masses of very neutron-deficient nuclides close to the astrophysical r, p- and ν p-process paths have been determined with the Penning trap facilities JYFLTRAP at JYFL/Jyväskylä and SHIPTRAP at GSI/Darmstadt. Isotopes from yttrium (Z=39) to palladium (Z=46) have been produced in heavy-ion fusion-evaporation reactions. In total, 21 nuclides were studied, and almost half of the mass values were experimentally determined for the first time: Tc88, Ru90-92, Rh92-94, and Pd94,95. For the Pd95m, (21/2+) high-spin state, a first direct mass determination was performed. Relative mass uncertainties of typically δm/m=5×10-8 were obtained. The impact of the new mass values has been studied in ν p-process nucleosynthesis calculations. The resulting reaction flow and the final abundances are compared with those obtained with the data of the Atomic Mass Evaluation 2003. © 2008 The American Physical Society. ispartof: Physical Review C, Nuclear Physics vol:78 issue:5 pages:1-18 status: published

Published
2008

111. Mass measurements in the vicinity of the rp-process and the νp-process paths with the Penning trap facilities JYFLTRAP and SHIPTRAP

Author

Weber, C., Elomaa, V.-V., Ferrer, R., Fröhlich, C., Ackermann, D., Äystö, J., Audi, G., Batist, L., Blaum, K., Block, M., Chaudhuri, A., Dworschak, M., Eliseev, S., Eronen, T., Hager, U., Hakala, J., Herfurth, F., Heßberger, F. P., Hofmann, S., Jokinen, A., Kankainen, A., Kluge, H.-J., Langanke, K., Martín, A., Martínez-Pinedo, G., Mazzocco, M., Moore, I. D., Neumayr, J. B., Novikov, Yu. N., Penttilä, H., Plaß, W. R., Popov, A. V., Rahaman, S. M. Wahidur, Rauscher, T., Rauth, C., Rissanen, J., Rodríguez, D., Saastamoinen, A., Scheidenberger, C., Schweikhard, L., Seliverstov, D. M., Sonoda, T., Thielemann, F.-K., Thirolf, P. G., Vorobjev, G. K., 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), 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
Nuclear physics aspects of novae, Binding energies and masses, supernovae, Nucleosynthesis in novae, and other explosive environments, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Mass spectrometers
Abstract

The masses of very neutron-deficient nuclides close to the astrophysical rp- and νp-process paths have been determined with the Penning trap facilities JYFLTRAP at JYFL/Jyväskylä and SHIPTRAP at GSI/Darmstadt. Isotopes from yttrium (Z=39) to palladium (Z=46) have been produced in heavy-ion fusion-evaporation reactions. In total, 21 nuclides were studied, and almost half of the mass values were experimentally determined for the first time: Tc88, Ru90-92, Rh92-94, and Pd94,95. For the Pd95m, (21/2+) high-spin state, a first direct mass determination was performed. Relative mass uncertainties of typically δm/m=5×10-8 were obtained. The impact of the new mass values has been studied in νp-process nucleosynthesis calculations. The resulting reaction flow and the final abundances are compared with those obtained with the data of the Atomic Mass Evaluation 2003.

Published
2008

112. Restoration of the N=82 Shell Gap from Direct Mass Measurements of $^{132,134}$Sn

Author

Dworschak, M., Audi, G., Blaum, K., Delahaye, P., George, S., Hager, U., Herfurth, F., Herlert, A., Kellerbauer, A., J. Kluge, H., Lunney, D., Schweikhard, L., Yazidjian, C., 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), 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
NUCLEI, ACCURACY, Nuclear Theory, PENNING TRAP, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], ISOLTRAP, FORMULAS, Physics::Atomic and Molecular Clusters, ISOTOPES, SPECTROMETER, Nuclear Physics - Experiment, Nuclear Experiment, SYSTEM, SN-132, STARS
Abstract

A high-precision direct Penning trap mass measurement has revealed a 0.5-MeV deviation of the binding energy of $^{134}$Sn from the currently accepted value. The corrected mass assignment of this neutron-rich nuclide restores the neutron-shell gap at N=82, previously considered to be a case of “shell quenching.” In fact, the new shell gap value for the short-lived $^{132}$Sn is larger than that of the doubly-magic $^{48}$Ca which is stable. The N=82 shell gap has considerable impact on fission recycling during the $r$ process. More generally, the new finding has important consequences for microscopic mean-field theories which systematically deviate from the measured binding energies of closed-shell nuclides.

Published
2008

113. Performance of IGISOL 3

Author

Penttilä, H., primary, Billowes, J., additional, Campbell, P., additional, Dendooven, P., additional, Elomaa, V. -V., additional, Eronen, T., additional, Hager, U., additional, Hakala, J., additional, Huikari, J., additional, Jokinen, A., additional, Kankainen, A., additional, Karvonen, P., additional, Kopecky, S., additional, Marsh, B., additional, Moore, I., additional, Nieminen, A., additional, Popov, A., additional, Rinta-Antila, S., additional, Wang, Y., additional, and Äystö, J., additional

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114. Beta-delayed gamma and proton spectroscopy near the Z = N line

Author

Kankainen, A., primary, Eliseev, S. A., additional, Eronen, T., additional, Fox, S. P., additional, Hager, U., additional, Hakala, J., additional, Huang, W., additional, Huikari, J., additional, Jenkins, D., additional, Jokinen, A., additional, Kopecky, S., additional, Moore, I., additional, Nieminen, A., additional, Novikov, Yu. N., additional, Penttilä, H., additional, Popov, A. V., additional, Rinta-Antila, S., additional, Schatz, H., additional, Seliverstov, D. M., additional, Vorobjev, G. K., additional, Wang, Y., additional, and Äystö, J., additional

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117. Lifetime measurements of states inO15

Author

Galinski, N., primary, Sjue, S. K. L., additional, Ball, G. C., additional, Cross, D. S., additional, Davids, B., additional, Al Falou, H., additional, Garnsworthy, A. B., additional, Hackman, G., additional, Hager, U., additional, Howell, D. A., additional, Jones, M., additional, Kanungo, R., additional, Kshetri, R., additional, Leach, K. G., additional, Leslie, J. R., additional, Moukaddam, M., additional, Orce, J. N., additional, Rand, E. T., additional, Ruiz, C., additional, Ruprecht, G., additional, Schumaker, M. A., additional, Svensson, C. E., additional, Triambak, S., additional, and Unsworth, C. D., additional

Published
2014
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118. Two-neutron transfer reaction mechanisms in12C(6He,4He)14C using a realistic three-body6He model

Author

Smalley, D., primary, Sarazin, F., additional, Nunes, F. M., additional, Brown, B. A., additional, Adsley, P., additional, Al-Falou, H., additional, Andreoiu, C., additional, Baartman, B., additional, Ball, G. C., additional, Blackmon, J. C., additional, Boston, H. C., additional, Catford, W. N., additional, Chagnon-Lessard, S., additional, Chester, A., additional, Churchman, R. M., additional, Cross, D. S., additional, Diget, C. Aa., additional, Valentino, D. Di, additional, Fox, S. P., additional, Fulton, B. R., additional, Garnsworthy, A., additional, Hackman, G., additional, Hager, U., additional, Kshetri, R., additional, Orce, J. N., additional, Orr, N. A., additional, Paul, E., additional, Pearson, M., additional, Rand, E. T., additional, Rees, J., additional, Sjue, S., additional, Svensson, C. E., additional, Tardiff, E., additional, Varela, A. Diaz, additional, Williams, S. J., additional, and Yates, S., additional

Published
2014
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119. TheC12(O16,γSi28)radiative capture reaction at sub-barrier energies

Author

Goasduff, A., primary, Courtin, S., additional, Haas, F., additional, Lebhertz, D., additional, Jenkins, D. G., additional, Fallis, J., additional, Ruiz, C., additional, Hutcheon, D. A., additional, Amandruz, P.-A., additional, Davis, C., additional, Hager, U., additional, Ottewell, D., additional, and Ruprecht, G., additional

Published
2014
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121. Constraining nova observables: Direct measurements of resonance strengths in33S(p,γ)34Cl

Author

Fallis, J., primary, Parikh, A., additional, Bertone, P. F., additional, Bishop, S., additional, Buchmann, L., additional, Chen, A. A., additional, Christian, G., additional, Clark, J. A., additional, D’Auria, J. M., additional, Davids, B., additional, Deibel, C. M., additional, Fulton, B. R., additional, Greife, U., additional, Guo, B., additional, Hager, U., additional, Herlitzius, C., additional, Hutcheon, D. A., additional, José, J., additional, Laird, A. M., additional, Li, E. T., additional, Li, Z. H., additional, Lian, G., additional, Liu, W. P., additional, Martin, L., additional, Nelson, K., additional, Ottewell, D., additional, Parker, P. D., additional, Reeve, S., additional, Rojas, A., additional, Ruiz, C., additional, Setoodehnia, K., additional, Sjue, S., additional, Vockenhuber, C., additional, Wang, Y. B., additional, and Wrede, C., additional

Published
2013
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122. Measurement of Radiative Proton Capture onF18and Implications for Oxygen-Neon Novae

Author

Akers, C., primary, Laird, A. M., additional, Fulton, B. R., additional, Ruiz, C., additional, Bardayan, D. W., additional, Buchmann, L., additional, Christian, G., additional, Davids, B., additional, Erikson, L., additional, Fallis, J., additional, Hager, U., additional, Hutcheon, D., additional, Martin, L., additional, Murphy, A. St. J., additional, Nelson, K., additional, Spyrou, A., additional, Stanford, C., additional, Ottewell, D., additional, and Rojas, A., additional

Published
2013
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123. MEASURING THE 16O(α, γ)20Ne REACTION RATE WITH THE DRAGON RECOIL SEPARATOR AT TRIUMF

Author

HAGER, U., primary, GREIFE, U., additional, BUCHMANN, L., additional, DAVIDS, B., additional, FALLIS, J., additional, HUTCHEON, D., additional, OTTEWELL, D., additional, REEVE, S., additional, ROJAS, A., additional, RUIZ, C., additional, SJUE, S. K. L., additional, ERIKSON, L., additional, CARMONA-GALLARDO, M., additional, VOCKENHUBER, C., additional, BROWN, J. R., additional, and IRVINE, D., additional

Published
2013
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124. A GAS JET TARGET FOR RADIOACTIVE ION BEAM EXPERIMENTS

Author

CHIPPS, K. A., primary, GREIFE, U., additional, HAGER, U., additional, SARAZIN, F., additional, SMITH, M. S., additional, BARDAYAN, D. W., additional, PAIN, S. D., additional, SCHMITT, K. T., additional, SCHATZ, H., additional, MONTES, F., additional, MEISEL, Z., additional, BLACKMON, J. C., additional, LINHARDT, L. E., additional, WIESCHER, M., additional, COUDER, M., additional, BERG, G. P. A., additional, ROBERTSON, D., additional, VETTER, P. A., additional, LEMUT, A., additional, and ERIKSON, L., additional

Published
2013
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125. Total absorption study of theβdecay of102,104,105Tc

Author

Jordan, D., primary, Algora, A., additional, Taín, J. L., additional, Rubio, B., additional, Agramunt, J., additional, Perez-Cerdan, A. B., additional, Molina, F., additional, Caballero, L., additional, Nácher, E., additional, Krasznahorkay, A., additional, Hunyadi, M. D., additional, Gulyás, J., additional, Vitéz, A., additional, Csatlós, M., additional, Csige, L., additional, Äysto, J., additional, Penttilä, H., additional, Moore, I. D., additional, Eronen, T., additional, Jokinen, A., additional, Nieminen, A., additional, Hakala, J., additional, Karvonen, P., additional, Kankainen, A., additional, Saastamoinen, A., additional, Rissanen, J., additional, Kessler, T., additional, Weber, C., additional, Ronkainen, J., additional, Rahaman, S., additional, Elomaa, V., additional, Hager, U., additional, Rinta-Antila, S., additional, Sonoda, T., additional, Burkard, K., additional, Hüller, W., additional, Batist, L., additional, Gelletly, W., additional, Nichols, A. L., additional, Yoshida, T., additional, Sonzogni, A. A., additional, Peräjärvi, K., additional, Petrovici, A., additional, Schmid, K. W., additional, and Faessler, A., additional

Published
2013
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126. Beam suppression of the DRAGON recoil separator for 3He()7Be

Author

Sjue, S.K.L., primary, Nara Singh, B.S., additional, Adsley, P., additional, Buchmann, L., additional, Carmona-Gallardo, M., additional, Davids, B., additional, Fallis, J., additional, Fulton, B.R., additional, Galinski, N., additional, Hager, U., additional, Hass, M., additional, Howell, D., additional, Hutcheon, D.A., additional, Laird, A.M., additional, Martin, L., additional, Ottewell, D., additional, Reeve, S., additional, Ruiz, C., additional, Ruprecht, G., additional, and Triambak, S., additional

Published
2013
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129. Nuclear Astrophysics at DRAGON.

Author

Hager, U.

Subjects
*NUCLEAR astrophysics, *ALPHA decay, *PROTON capture, *HELIUM, *SUPERGIANT stars, *BRANCHING ratios, *BISMUTH germanate
Abstract

The DRAGON recoil separator is located at the ISAC facility at TRIUMF, Vancouver. It is designed to measure radiative alpha and proton capture reactions of astrophysical importance. Over the last years, the DRAGON collaboration has measured several reactions using both radioactive and high-intensity stable beams. For example, the 16O(a,g) cross section was recently measured. The reaction plays a role in steady-state helium burning in massive stars, where it follows the 12C(a,g) reaction. At astrophysically relevant energies, the reaction proceeds exclusively via direct capture, resulting in a low rate. In this measurement, the unique capabilities of DRAGON enabled determination not only of the total reaction rates, but also of decay branching ratios. In addition, results from other recent measurements will be presented. [ABSTRACT FROM AUTHOR]

Published
2014
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132. Cross section measurements of the3He(α,γ)7Be reaction using DRAGON at TRIUMF

Author

Singh, B S Nara, primary, Sjue, S K L, additional, Davids, B, additional, Hass, M, additional, Adsley, P, additional, Buchmann, L, additional, Carmona-Gallardo, M, additional, Fallis, J, additional, Fox, S P, additional, Fulton, B, additional, Galinski, N, additional, Hager, U, additional, Hutcheon, D A, additional, Laird, A M, additional, Martin, L, additional, Ottewell, D, additional, Reeve, S, additional, Ruiz, C, additional, Ruprecht, G, additional, Shotter, A, additional, and Tengblad, O, additional

Published
2012
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133. [sup 12]C+[sup 16]O: Properties of sub-barrier resonance γ-decay

Author

Goasduff, A., primary, Courtin, S., additional, Haas, F., additional, Lebhertz, D., additional, Jenkins, D. G., additional, Fallis, J., additional, Ruiz, C., additional, Hutcheon, D. A., additional, Amandruz, P.-A., additional, Davis, C., additional, Hager, U., additional, Ottewell, D., additional, and Ruprecht, G., additional

Published
2012
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135. TACTIC: A new detector for Nuclear Astrophysics Experiments

Author

Fox, S P, primary, Amaudruz, P A, additional, Bruskiewich, P, additional, Buchmann, L, additional, Chipps, K A, additional, Hager, U, additional, Laird, A M, additional, Martin, L, additional, Ruprecht, G, additional, Shotter, A C, additional, and Walden, P, additional

Published
2011
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136. NEURAL - a tracking detector for neutron-induced reactions of astrophysical importance

Author

Martin, L, primary, Buchmann, L, additional, Carpino, J F, additional, Chen, A, additional, Couture, A, additional, Davids, B, additional, Fallis, J, additional, Fox, S P, additional, Hager, U, additional, Hussein, A, additional, Laird, A M, additional, Olchanski, K, additional, Ottewell, D, additional, Ruiz, C, additional, Ruprecht, G, additional, Sheffer, G, additional, Sjue, S, additional, Tengblad, O, additional, and Tovesson, F, additional

Published
2011
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138. Improvements on Decay Heat Summation Calculations by Means of Total Absorption Gamma-ray Spectroscopy Measurements

Author

Algora, A., primary, Jordan, D., additional, Tain, J. L., additional, Rubio, B., additional, Agramunt, J., additional, Caballero, L., additional, Nacher, E., additional, Perez-Cerdan, A. B., additional, Molina, F., additional, Krasznahorkay, A., additional, Hunyadi, M. D., additional, Gulyas, J., additional, Vitez, A., additional, Csatlos, M., additional, Csige, L., additional, Aysto, J., additional, Penttila, H., additional, Rinta-Antila, S., additional, Moore, I., additional, Eronen, T., additional, Jokinen, A., additional, Nieminen, A., additional, Hakala, J., additional, Karvonen, P., additional, Kankainen, A., additional, Hager, U., additional, Sonoda, T., additional, Saastamoinen, A., additional, Rissanen, J., additional, Kessler, T., additional, Weber, C., additional, Ronkainen, J., additional, Rahaman, S., additional, Elomaa, V., additional, Burkard, K., additional, Huller, W., additional, Batist, L., additional, Gelletly, W., additional, Yoshida, T., additional, Nichols, A. L., additional, Sonzogni, A., additional, and Perajarvi, K., additional

Published
2011
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139. The 33S(p,\gamma )34Cl reaction in classical nova explosions

Author

Parikh, Anuj, primary, Faestermann, Thomas, additional, Kruecken, Reiner, additional, Bildstein, Vinzenz, additional, Bishop, Shawn, additional, Eppinger, Katrin, additional, Herlitzius, Clemens, additional, Lepyoshkina, Olga, additional, Maierbeck, Peter, additional, Seiler, Dominik, additional, Wimmer, Kathrin, additional, Hertenberger, Ralf, additional, Wirth, Hans-Friedrich, additional, Fallis, J., additional, Hager, U., additional, Hutcheon, D.A., additional, Ruiz, C., additional, Buchmann, L., additional, Ottewell, D., additional, Freeman, B., additional, Wrede, C., additional, Garcia, A., additional, Delbridge, B., additional, Knecht, A., additional, Sallaska, A., additional, Chen, A., additional, Clark, J. A., additional, Deibel, Catherine, additional, Fulton, Brian R., additional, Laird, A., additional, Greife, Uwe, additional, Guo, B., additional, Li, E., additional, Li, Z., additional, Lian, G., additional, Wang, Y., additional, Liu, W., additional, Parker, P., additional, and Setoodehnia, K., additional

Published
2011
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140. TACTIC: A New Detector for Tracking in Low Energy Nuclear Astrophysics

Author

Chipps, Kelly, primary, Amaudruz, P., additional, Buchmann, L., additional, Bruskiewich, P., additional, Fox, S.P., additional, Fulton, B.R., additional, Hager, U., additional, Laird, A.M., additional, Machule, P., additional, Martin, L., additional, Openshaw, R., additional, Ruprecht, G., additional, Shotter, A.C., additional, Walden, P., additional, and Walter, M., additional

Published
2011
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145. Direct measurement of theF18(p,α)O15reaction at nova temperatures

Author

Beer, C. E., primary, Laird, A. M., additional, Murphy, A. St. J., additional, Bentley, M. A., additional, Buchman, L., additional, Davids, B., additional, Davinson, T., additional, Diget, C. A., additional, Fox, S. P. , additional, Fulton, B. R., additional, Hager, U., additional, Howell, D., additional, Martin, L., additional, Ruiz, C., additional, Ruprecht, G., additional, Salter, P., additional, Vockenhuber, C., additional, and Walden, P., additional

Published
2011
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146. SHARC: Silicon Highly-segmented Array for Reactions and Coulex used in conjunction with the TIGRESS γ-ray spectrometer

Author

Diget, C Aa, primary, Fox, S P, additional, Smith, A, additional, Williams, S, additional, Porter-Peden, M, additional, Achouri, L, additional, Adsley, P, additional, Al-Falou, H, additional, Austin, R A E, additional, Ball, G C, additional, Blackmon, J C, additional, Brown, S, additional, Catford, W N, additional, Chen, A A, additional, Chen, J, additional, Churchman, R M, additional, Dech, J, additional, Valentino, D Di, additional, Djongolov, M, additional, Fulton, B R, additional, Garnsworthy, A, additional, Hackman, G, additional, Hager, U, additional, Kshetri, R, additional, Kurchaninov, L, additional, Laird, A M, additional, Martin, J -P, additional, Matos, M, additional, Orce, J N, additional, Orr, N A, additional, Pearson, C J, additional, Ruiz, C, additional, Sarazin, F, additional, Sjue, S, additional, Smalley, D, additional, Svensson, C E, additional, Taggart, M, additional, Tardiff, E, additional, and Wilson, G L, additional

Published
2011
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147. Improving the [sup 33]S(p,γ)[sup 34]Cl Reaction Rate for Models of Classical Nova Explosions

Author

Parikh, A., primary, Faestermann, Th., additional, Krücken, R., additional, Bildstein, V., additional, Bishop, S., additional, Eppinger, K., additional, Herlitzius, C., additional, Lepyoshkina, O., additional, Maierbeck, P., additional, Seiler, D., additional, Wimmer, K., additional, Hertenberger, R., additional, Wirth, H.-F., additional, Fallis, J., additional, Hager, U., additional, Hutcheon, D., additional, Ruiz, Ch., additional, Buchmann, L., additional, Ottewell, D., additional, Freeman, B., additional, Wrede, Ch., additional, García, A., additional, Delbridge, B., additional, Knecht, A., additional, Sallaska, A., additional, Chen, A. A., additional, Clark, J. A., additional, Deibel, C. M., additional, Fulton, B., additional, Laird, A., additional, Greife, U., additional, Guo, B., additional, Li, E., additional, Li, Z., additional, Lian, G., additional, Wang, Y., additional, Liu, W., additional, Parker, P. D., additional, Setoodehnia, K., additional, Demetriou, Paraskevi, additional, Julin, Rauno, additional, and Harissopulos, Sotirios, additional

Published
2011
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148. TAS measurements for reactor physics and nuclear structure

Author

Algora, A., primary, Jordan, D., additional, Taín, J. L., additional, Rubio, B., additional, Agramunt, J., additional, Caballero, L., additional, Nácher, E., additional, Perez-Cerdan, A. B., additional, Molina, F., additional, Estevez, E., additional, Krasznahorkay, A., additional, Hunyadi, M. D., additional, Gulyás, J., additional, Vitéz, A., additional, Csatlós, M., additional, Csige, L., additional, Äysto, J., additional, Penttilä, H., additional, Rinta-Antila, S., additional, Moore, I., additional, Eronen, T., additional, Jokinen, A., additional, Nieminen, A., additional, Hakala, J., additional, Karvonen, P., additional, Kankainen, A., additional, Hager, U., additional, Sonoda, T., additional, Saastamoinen, A., additional, Rissanen, J., additional, Kessler, T., additional, Weber, C., additional, Ronkainen, J., additional, Rahaman, S., additional, Elomaa, V., additional, Burkard, K., additional, Hüller, W., additional, Batist, L., additional, Gelletly, W., additional, Nichols, A. L., additional, Yoshida, T., additional, Sonzogni, A. A., additional, Peräjärvi, K., additional, Demetriou, Paraskevi, additional, Julin, Rauno, additional, and Harissopulos, Sotirios, additional

Published
2011
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149. 12C+16O sub-barrier radiative capture cross-section measurements

Author

Goasduff, A., primary, Courtin, S., additional, Haas, F., additional, Lebhertz, D., additional, Jenkins, D.G., additional, Beck, C., additional, Fallis, J., additional, Ruiz, C., additional, Hutcheon, D.A., additional, Amandruz, P.-A., additional, Davis, C., additional, Hager, U., additional, Ottewell, D., additional, and Ruprecht, G., additional

Published
2011
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150. High-precision mass measurements for reliable nuclear astrophysics calculations

Author

Herlert, Alexander, primary, Baruah, S., additional, Blaum, K., additional, Breitenfeldt, M., additional, Delahaye, P., additional, Dworschak, M., additional, George, S., additional, Guénaut, C., additional, Hager, U., additional, Herfurth, F., additional, Kellerbauer, A., additional, Kluge, H.-Jürgen, additional, Lunney, D., additional, Savreux, R., additional, Schwarzh, S., additional, Schweikhard, Lutz, additional, and Yazidjian, C., additional

Published
2010
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