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Calculated proton-induced thick-target radionuclide activation yields and neutron yield spectra for E/sub p/ less than or equal to 50 MeV, with comparisons to other calculations and measured data

Conference ·
OSTI ID:7124163
; ; ;
Radionuclide production cross sections have been calculated with the GNASH code for protons below 50 MeV incident of on the stable nuclides of a range of elements common to accelerator materials. These elements include C, O, Ne, Al, Si, Fe, Co, Ni, Cu, and W. These data, augmented with limited measured data, have been used with the proton stopping cross-section data of Anderson and Ziegler to calculate thick-target yield values for the formation of a range of radionuclides in accelerator materials. Illustrative results are presented. GNASH calculations have also been made on a grid of proton energies below 50 MeV to produce differential cross sections describing angle-integrated neutron production spectra. The angular distribution systematics of Kalbach and Mann have been used to produce double-differential cross-section, which were used with the proton stopping data to produce anisotropic thick-target neutron yield spectra. Results are presented for 52-MeV protons on a thick target of Cu. Comparisons are made with results of HETC calculations, using cross sections from the intranuclear cascade plus evaporation model, and with thick-target neutron yield spectra measured by Nakamura, Fijii, and Shin. 15 refs., 3 figs., 1 tab.
Research Organization:
Los Alamos National Lab., NM (USA)
DOE Contract Number:
W-7405-ENG-36
OSTI ID:
7124163
Report Number(s):
LA-UR-88-2370; CONF-880546-32; ON: DE88014333
Country of Publication:
United States
Language:
English

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Related Subjects

653003* -- Nuclear Theory-- Nuclear Reactions & Scattering
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACTIVATION ENERGY
ALUMINIUM 27 TARGET
ANGULAR DISTRIBUTION
BARYON REACTIONS
CARBON
CHARGED-PARTICLE REACTIONS
COBALT 59 TARGET
COMPUTER CODES
COPPER
CROSS SECTIONS
DATA
DISTRIBUTION
ELEMENTS
ENERGY
G CODES
HADRON REACTIONS
INFORMATION
IRON
METALS
NEUTRON SPECTRA
NICKEL
NONMETALS
NUCLEAR REACTIONS
NUCLEON REACTIONS
NUMERICAL DATA
OXYGEN
PROTON REACTIONS
SEMIMETALS
SILICON
SPECTRA
TARGETS
THEORETICAL DATA
TRANSITION ELEMENTS
TUNGSTEN