PLACID: gamma radiation streaming through cylindrical ducts. [IBM370; FORTRAN IV]

Technical Report ·

OSTI ID:5602543

Murthy, K P.N.; Indira, R

PLACID simulates gamma streaming through straight cylindrical ducts in shields. A straight cylindrical duct located in an infinite shield material is the geometry considered. Monte Carlo simulation is used with variance reduction devices such as Russian roulette and cutoff weight for history termination. For the simulation of Cartesian coordinate system is set up with the origin at the center of the duct mouth and the z-axis along the duct centerline. The source is a plane isotropic disc source, placed at the bottom of the duct. Photon point total cross sections are used. The Klein-Nishina formula is used to compute the differential scattering cross sections. The double rejection technique due to Kahn is employed for sampling the scattered photon energy and the scattering angle. Next event estimators are used for scoring the streaming flux.

• Research Organization: Reactor Research Centre, Kalpakkam (India). Fast Reactor Group
• OSTI ID: 5602543
• Report Number(s): ANL/NESC-1017; ON: DE83049004
• Country of Publication: United States
• Language: English

Related Subjects

654002* -- Radiation & Shielding Physics-- Shielding Calculations & Experiments-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CIRCULAR CONFIGURATION
COMPUTER CODES
COMPUTERS
CONFIGURATION
DUCTS
ELECTROMAGNETIC RADIATION
FORTRAN
GAMMA RADIATION
IBM COMPUTERS
IONIZING RADIATIONS
P CODES
PROGRAMMING LANGUAGES
RADIATION STREAMING
RADIATIONS
SHIELDS