NDLI: Measurement and theoretical estimation of induced activity in $^{nat}$In by high energy neutrons

Content Provider	Springer Nature Link
Author	Nandy, Maitreyee Sarkar, P. K. Nakao, N. Shibata, T.
Copyright Year	2009
Abstract	Induced radioactivity in natural indium ($^{nat}$In) foils by high energy neutrons was measured at the KENS Facility, KEK, Japan, where a 16.7 cm thick W target was bombarded by protons of 500 MeV. High energy neutrons consequently produced irradiated the In targets placed at different depths inside a 4 m thick concrete shield placed at the beam exit. The measured activities were compared with the results calculated using the nuclear reaction model codes ALICE-91 and EMPIRE-2.18. To estimate the induced activity, excitation functions of the various radionuclides were calculated using the two codes and folded with the appropriate neutron energy distribution at different depths of the concrete shield. The calculated excitation functions of a given nuclide were found to vary widely from one another in some cases. The performances of the codes for different input parameters like level densities and inverse cross-sections are reported in this paper. Our analysis shows that neither of the two codes reproduced all the measured activities satisfactorily, requiring further improvements in the models adopted.
Starting Page	669
Ending Page	683
Page Count	15
File Format	PDF
ISSN	03044289
Journal	Pramana
Volume Number	73
Issue Number	4
e-ISSN	09737111
Language	English
Publisher	Springer-Verlag
Publisher Date	2009-11-13
Publisher Place	India
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Induced activity ALICE EMPIRE pre-equilibrium excitation function Astrophysics and Astroparticles Astronomy, Observations and Techniques Physics
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy

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