Status of Monte Carlo at Los Alamos

Conference · Tue Apr 01 04:00:00 EST 1980

OSTI ID:5445647

Thompson, W. L. ^[1]; Cashwell, E. D. ^[1]

---

1. Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)

At Los Alamos the early work of Fermi, von Neumann, and Ulam has been developed and supplemented by many followers, notably Cashwell and Everett, and the main product today is the continuous-energy, general-purpose, generalized-geometry, time-dependent, coupled neutron-photon transport code called MCNP. The Los Alamos Monte Carlo research and development effort is concentrated in Group X-6. MCNP treats an arbitrary three-dimensional configuration of arbitrary materials in geometric cells bounded by first- and second-degree surfaces and some fourth-degree surfaces (elliptical tori). Monte Carlo has evolved into perhaps the main method for radiation transport calculations at Los Alamos. MCNP is used in every technical division at the Laboratory by over 130 users about 600 times a month accounting for nearly 200 hours of CDC-7600 time.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA), Nuclear Criticality Safety Program (NCSP)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 5445647
• Report Number(s): LA-UR--80-1158; CONF-800471-3
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
220100* -- Nuclear Reactor Technology-- Theory & Calculation
97 MATHEMATICS AND COMPUTING
990200 -- Mathematics & Computers
COMPUTER CALCULATIONS
COMPUTER CODES
Group X-6
HIGH ENERGY PHYSICS
KINETICS
LASL
MCNP
MONTE CARLO METHOD
NATIONAL ORGANIZATIONS
NUCLEAR PHYSICS
Nuclear Criticality Safety Program (NCSP)
PHYSICS
REACTOR KINETICS
RESEARCH PROGRAMS
US AEC
US DOE
US ERDA
US ORGANIZATIONS