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Study of the 191Ir(n,2n)190Ir cross section

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Published: Jan 1, 2020
DOI: https://doi.org/10.12681/hnps.2625
N. Patronis
NTUA
C. T. Papadopoulos
NTUA
S. Galanopoulos
NTUA
M. Kokkoris
NTUA
G. Perdikakis
NTUA
S. Harissopulos
INPP, NCSR "D"
A. Lagoyannis
INPP, NCSR "D"
R. Vlastou
NTUA
Abstract

The 191Ir(n,2n)190Ir cross section was measured by using of the activation technique at four neutron energies in the range 10.0-11.3 MeV. The quasimonoenergetic neutron beam was produced via the 2H(d,n)3He reaction at the 5.5 MV Tandem Van de Graaff accelerator of NCSR ”Demokritos”. After the irradiations the induced activity of the samples was measured through a 56% relative efficiency HPGe detector. The cross section for the population of the second high spin (11−) isomeric state was measured along with the sum of the reaction cross section populating both the ground (4−) and the first isomeric state (1−). The experimental data will be combared to theoretical calculations in order to deduce information for the spin dependence of the level density parameters.

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References
M. Qaim, A. Mushtaq and M. Uhl, Phys. Rev. C 38, 645 (1988)
M. Qaim, Nucl. Phys, A185, 614 (1972)
M. Herman, A. Marcinkowski and K. Stankiewicz, Nucl. Phys. A430, 69 (1984)
C. S. Khurana and H. S. Hans, Nucl. Phys. A28, 560 (1961)
Yu. P. Gangrsky, N. N. Kolesnikov, V. G. Lukashik and L. M. Melnikova, Phys. of Atomic Nuclei 67, 1251, (2004)
W. Dilg, H. Vonach, G. Winkler and P. Hille, Nucl. Phys. A118, 9 (1968)
D. M. Zellermayer and B. Rosner, Phys. Rev. C 6, 315 (1972)
A. A. Filatenkov and S. V. Chuvaev, Khlopin Radiev. Inst., Leningrad Reports No. 259, (2003)
M. Bormann, H. H. Bissem, E. Magiera and R. Warnemuende, Nucl. Phys. A157, 481 (1970)
A. Reggoug and M. Beradda, Nucl. Instrum. Methods Phys. Res. A 255, 107 (1987)
C. Konno, Y Ikeda, K. Oishi, K. Kawade, H. Yamamoto and H. Maekawa, JAERI Tokai report series, No. 1329, (1993)
J. K. Temperley and D. E. Barnes, Ballistic Research Labs Reports, No. 1491, (1970)
C. M. Lederer, Nucl. Data Sheets 35, 525 (1982)
B. Singh, Nucl. Data Sheets 61, 243 (1990)
B. Singh, Nucl. Data Sheets 99, 275 (2003)
The International Reactor Dosimetry File 2002, Nuclear Data Section, IAEA, Vienna
G. Vourvopoulos, T. Paradellis and A. Asthenopoulos, Nucl. Instrum. Methods Phys. Res. 220, 23 (1984)
H. Klein, H. J. Brede and B. R. L. Siebert, Nucl. Instrum. Methods Phys. Res. 193, 635 (1982)
G. Perdikakis, C. T. Papadopoulos, R. Vlastou, A. Lagoyannis, A. Spyrou, M. Kokkoris, S. Galanopoulos, N. Patronis, D. Karamanis, Ch. Zarkadas, G. Kalyva and S. Kossionides, Phys. Rev. C 73, 067601 (2006)
R. Vastou et al., J. of Rad. and Nucl. Chem., in press
H. Beer and F. Kaeppeler, Phys. Rev. C 21, 534 (1980)
Geant4-Collaboration, the GEANT4 Monte Carlo toolkit for the simulation of the passage of particles through matter, http://wwwinfo.cern.ch/asd/geant4/geant.html
B. P. Bayhurst, J. S. Gilmore, R. J. Prestwood, J. B. Wilhelmy, Nelson Jarmie, B. H. Erkkila and R. A. Hardekopf, Phys. Rev. C 12, 451 (1975)
N. Fotiades, R. O. Nelson, M. Devlin, M. B. Chadwick, P. Talou, J. A. Becker, P. E. Garrett and W.Younes, Lawrence Livermore National Laboratory, UCRL-PROC- 209031, (2005)