Measurements and calculations of the electron recoil spectra from gamma rays emitted by nitrogen for a 14-MeV neutron source

Journal Article · Tue Mar 01 04:00:00 EST 1977 · Nucl. Sci. Eng.; (United States)

OSTI ID:7218383

Hansen, L F; Komoto, T; Plechaty, E F; Pohl, B A; Sidhu, G S; Wong, C

The electron recoil spectra from gamma rays produced by the interaction of 14-MeV neutrons with 0.5, 1.0, 3.0, and 7.0 mean-free-paths (mfps) of nitrogen have been measured with NE-213 scintillators positioned at 26, 30, and 120 deg at distances ranging between 7 and 10 m. Thin wall spherical Dewars filled with liquid nitrogen, with radii dimensions equivalent to the above number of mfp, were bombarded with a centered nominal 14-MeV neutron source. Calculations of the gamma and recoil electron spectra have been carried out with the ENDF/B-IV and ENDL neutron-gamma libraries. Comparison between the measured and calculated electron recoil spectra shows that the discrepancies are not larger than 10%. This agreement implies that the calculated gamma-ray spectra are expected to give a good description of the gamma transport in nitrogen from a 14-MeV neutron source.

• Research Organization: Univ. of California, Livermore
• OSTI ID: 7218383
• Journal Information: Nucl. Sci. Eng.; (United States), Journal Name: Nucl. Sci. Eng.; (United States) Vol. 62:3; ISSN NSENA
• Country of Publication: United States
• Language: English

Related Subjects

654003* -- Radiation & Shielding Physics-- Neutron Interactions with Matter
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CRYOGENIC FLUIDS
ELECTROMAGNETIC RADIATION
ELECTRON SPECTRA
ELEMENTS
FLUIDS
GAMMA RADIATION
GAMMA SPECTRA
IONIZING RADIATIONS
LIQUIDS
NEUTRAL-PARTICLE TRANSPORT
NEUTRON TRANSPORT
NITROGEN
NONMETALS
RADIATION TRANSPORT
RADIATIONS
RECOILS
SPECTRA