McSKY: A hybrid Monte-Carlo lime-beam code for shielded gamma skyshine calculations

Technical Report · Fri Jul 01 00:00:00 EDT 1994

DOI:https://doi.org/10.2172/101043· OSTI ID:101043

Shultis, J K; Faw, R E; Stedry, M H ^[1]; Hall, W ^[2]

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1. Kansas State Univ., Manhattan, KS (United States). Dept. of Nuclear Engineering
2. Kansas State Univ., Manhattan, KS (United States)

McSKY evaluates skyshine dose from an isotropic, monoenergetic, point photon source collimated into either a vertical cone or a vertical structure with an N-sided polygon cross section. The code assumes an overhead shield of two materials, through the user can specify zero shield thickness for an unshielded calculation. The code uses a Monte-Carlo algorithm to evaluate transport through source shields and the integral line source to describe photon transport through the atmosphere. The source energy must be between 0.02 and 100 MeV. For heavily shielded sources with energies above 20 MeV, McSKY results must be used cautiously, especially at detector locations near the source.

• Research Organization: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States); Kansas State Univ., Manhattan, KS (United States)
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 101043
• Report Number(s): SAND-95-1747; ON: DE95017553; TRN: 95:020562
• Resource Relation: Other Information: PBD: Jul 1994
• Country of Publication: United States
• Language: English

Related Subjects

56 BIOLOGY AND MEDICINE
APPLIED STUDIES
66 PHYSICS
99 MATHEMATICS
COMPUTERS
INFORMATION SCIENCE
MANAGEMENT
LAW
MISCELLANEOUS
RADIATION DOSES
M CODES
GAMMA SOURCES
GAMMA RADIATION
RADIATION PROTECTION
GAMMA DOSIMETRY
MONTE CARLO METHOD
PHOTON TRANSPORT