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Title: A description of NUEXS, an upgrade of the code FCUP used to compute proton recoil current from CH{sub 2} foils

Technical Report ·
DOI:https://doi.org/10.2172/29352· OSTI ID:29352

A computer code, FCUP, developed by A. Craft computes currents of recoil protons from a time- and energy-dependent neutron flux striking a CH{sub 2} foil. Three problem areas need to be addressed to extend the code`s usefulness. First, FCUP computes a response that is not time dependent; that is, only the input time bin is broadened to account for the finite time distribution of protons from a single neutron energy; second, the time coordinate of the signal predicted is translated arbitrarily rather than absolutely relative to the time of maximum neutron production in the source; and third, the code does not account for electron pickup by protons at low proton energies in the target and absorber foils. This report describes the changes in calculational method used to overcome these problems.

Research Organization:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
W-7405-ENG-36
OSTI ID:
29352
Report Number(s):
LA-9412; ON: DE95007827; TRN: 95:002850
Resource Relation:
Other Information: PBD: Aug 1982
Country of Publication:
United States
Language:
English