High-energy particle Monte Carlo at Los Alamos

Conference · Tue Jan 01 04:00:00 EST 1985

OSTI ID:5858554

Prael, R E

A major computational effort at Los Alamos has been the development of a code system based on the HETC code for the transport of nucleons, pions, and muons. The Los Alamos National Laboratory version of HETC utilizes MCNP geometry and interfaces with MCNP for the transport of neutrons below 20 MeV and photons at any energy. A major recent effort has been the development of the PHT code for treating the gamma cascade in excited nuclei (the residual nuclei from an HETC calculation) by the Monte Carlo method to generate a photon source for MCNP. The HETC/MCNP code system has been extensively used for design studies of accelerator targets and shielding, including the design of LAMPF-II. It is extensively used for the design and analysis of accelerator experiments. Los Alamos National Laboratory has been an active member of the International Collaboration on Advanced Neutron Sources; as such we engage in shared code development and computational efforts. In the past few years, additional effort has been devoted to the development of a Chen-model intranuclear cascade code (INCA1) featuring a cluster model for the nucleus and deuteron pickup reactions. Concurrently, the INCA2 code for the breakup of light, excited nuclei using the Fermi breakup model has been developed. Together, they have been used for the calculation of neutron and proton cross sections in the energy ranges appropriate to medical accelerators, and for the computation of tissue kerma factors.

• Research Organization: Los Alamos National Lab., NM (USA)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 5858554
• Report Number(s): LA-UR-85-1243; CONF-8504110-13; ON: DE85010716
• Country of Publication: United States
• Language: English

Related Subjects

651000 -- Nuclear Physics
654003* -- Radiation & Shielding Physics-- Neutron Interactions with Matter
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALUMINIUM 27 TARGET
BARYON REACTIONS
CARBON 12 TARGET
CHARGED-PARTICLE REACTIONS
CHARGED-PARTICLE TRANSPORT
COMPUTER CALCULATIONS
ENERGY-LEVEL DENSITY
ENERGY-LEVEL TRANSITIONS
GAMMA CASCADES
GAMMA SPECTRA
HADRON REACTIONS
MONTE CARLO METHOD
NEUTRAL-PARTICLE TRANSPORT
NEUTRON REACTIONS
NEUTRON SOURCES
NEUTRON SPECTRA
NEUTRON TRANSPORT
NUCLEAR CASCADES
NUCLEAR REACTIONS
NUCLEON REACTIONS
PARTICLE SOURCES
PHOTON TRANSPORT
PROTON REACTIONS
RADIATION SOURCES
RADIATION TRANSPORT
SHIELDING
SPECTRA
TARGETS
URANIUM 238 TARGET