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Preliminary earth berm shielding calculations for the accelerator production of tritium 1700-MeV accelerator [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy. Office of Energy Research, 1998.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
6 pages : digital, PDF file
Additional Creators
Los Alamos National Laboratory, United States. Department of Energy. Office of Energy Research, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
The authors have performed calculations using the LAHET Code System (LCS) to obtain an estimation of the amount of earth berm shielding that will be required for the 1700-MeV proton accelerator proposed for the Accelerator Production of Tritium (APT) Project. A source scenario of 10 nA/m beam loss along the beam line was used to calculate the dose values above a 6-m earth berm from high-energy neutrons, low-energy neutrons, and photons. LAHET, a Monte Carlo based particle transport code, was used to transport a 1700-MeV protons from the beam along a divergence path of 1° from the original beam direction and impacting representative beampipe material along a 300-m beamline. LAHET was then used to track all high-energy neutron production until the neutrons either escape the berm shield, or scatter down in energy to 20 MeV, where their parameters were then written to a source file for MCNP. Photon production data was also written to a source file used by MCNP. MCNP transported all neutrons and photons from the LAHET source file until they (1) were absorbed, scattered down to an energy cutoff, or (2) escaped from the system. Doses were calculated from surface flux tallies obtained from LAHET and MCNP. These doses were then compared to earlier Moyer model calculations.
Report Numbers
E 1.99:la-ur--98-257
E 1.99: conf-971125--
conf-971125--
la-ur--98-257
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
07/01/1998.
"la-ur--98-257"
" conf-971125--"
"DE98003476"
1997 American Nuclear Society (ANS) winter meeting, Albuquerque, NM (United States), 16-20 Nov 1997.
Russell, G.J.; Patton, B.W.; Pitcher, E.J.; Court, J.D.; Ferguson, P.D.
Funding Information
W-7405-ENG-36
View MARC record | catkey: 14690327