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Neutron yields from stopping-length and near-stopping-length targets for 256-MeV protons

Technical Report ·
OSTI ID:6792872
; ; ;

We have measured absolute neutron yields at angles of 30/degree/, 60/degree/, 120/degree/, and 150/degree/, for the 256-MeV proton bombardment of elemental carbon, aluminum, and iron and of depleted uranium. We used time-of-flight techniques to identify and discriminate against backgrounds and to determine the neutron energy spectrum. Comparison of the experimental yields with intranuclear-cascade evaporation-model calculations with the codes HETC and ISABEL showed very good agreement over the entire neutron energy range except at 150/degree/. 16 refs., 31 figs., 4 tabs.

Research Organization:
Los Alamos National Lab., NM (USA)
DOE Contract Number:
W-7405-ENG-36
OSTI ID:
6792872
Report Number(s):
LA-11286-MS; ON: DE88017173
Country of Publication:
United States
Language:
English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALUMINIUM 27 TARGET
BARYON REACTIONS
BEAM MONITORS
CARBON
CHARGED PARTICLES
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DATA ACQUISITION SYSTEMS
ELEMENTS
EMISSION
HADRON REACTIONS
IONS
MEASURING INSTRUMENTS
MONITORS
NEUTRON EMISSION
NEUTRON SPECTRA
NONMETALS
NUCLEAR REACTIONS
NUCLEON REACTIONS
PROTON REACTIONS
SPECTRA
STOPPING POWER
TARGETS
TIME-OF-FLIGHT METHOD
URANIUM 238 TARGET