Isomeric Cross Section Study of Neutron Induced Reactions on Ge Isotopes


Published: Apr 17, 2020
R. Vlastou
A. Kalamara
G. Gkatis
A. Stamatopoulos
S. Chasapoglou
M. Kokkoris
M. Axiotis
A. Lagoyannis
I. E. Stamatelatos
Abstract
In the present work, natural Ge targets have been irradiated by  neutron beams of  17.7 and 19.3 MeV, at the 5MV tandem accelerator of NCSR "Demokritos". The cross section of the 72,74Ge(n,α)69,71Zn and 76Ge(n,2n)75Ge reactions, leading to the population of isomeric states,  has been deduced with respect to the  27Al(n,α)24Na  and  93Nb(n,2n)92mNb  reference  reactions. After the neutron irradiations, the induced γ-ray activity of the Ge target and reference foils, was measured with high-resolution HPGe detectors.
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References
P. Talou et al., Nucl. Sci. Eng. 155, 84 (2007)
A. Fessler et al., Nucl. Sci. Eng. 134, 171 (2000)
M. Avrigeanu et al., Phys.Rev. C85, 044618 (2012)
N. Dzysiuk and A. Koning, EPJ Web Conf. 146, 02047 (2017).
A. Tsinganis et al., Phys. Rev. C 83, 024609 (2011).
A.Kalamara et al., Phys. Rev. C97, 034615 (2018).
E. Birgersson, G. Loevestam, NeuSDesc-Neutron Source Description Software Manual, JRC Scientific and Technical Reports (2009).
X-5 Monte Carlo team, MCNP-A General Monte Carlo N-Particle Transport Code, version 5, Volume I-III, LAUR- 03-1987, LA-CP-03 0245 and LA-CP-03-0284 (April,2003).
F.B. Brown et al., Trans. Am. Nucl. Soc. 87, 273 (2002).
A. Kalamara et al., Eur. Phys. J. A (2019) 55: 187
E. Steiner et al., Helv.Phys.Acta 43, 17 (1970).
J-Ch. Sublet, L.W.Packer, J.Kopecky, R.A.Forrest, A J A.J.Koning and D.A.Rochman. The European Activation File : EAF-2010 neutron-induced cross Section Library - CCFE-R (10) 05.
M. Herman et al., Nucl. Data Sheets 108, 2655 (2007).
A. Koning, S. Hilaire, and S. Goriely, TALYS-1.8, http://www. talys.eu/fileadmin/talys/user/docs/talys1.8.pdf ,2015.
A. D’Arrigo et al., J. Phys. G 20, 365 (1994).
S. Goriely, M. Samyn, and J. M. Pearson, Phys. Rev. C 75, 064312 (2007).
J. J. Griffin, Phys. Rev. Lett. 17, 478 (1966).