Accession Number:

AD0671688

Title:

A FORTRAN SOURCE-ENERGY INTEGRATION PROGRAM FOR THE NGM CODE OUTPUT,

Descriptive Note:

Corporate Author:

ARMY NUCLEAR DEFENSE LAB EDGEWOOD ARSENAL MD

Personal Author(s):

• Beverly,William B.
• Lacetera,Joseph

Report Date:

1968-06-01

Pagination or Media Count:

31.0

Abstract:

This report describes a digital computer program written for the GE 225 Computer 16K core storage and 6 magnetic tape drives in the Tape FORTRAN language. It differs from the original program See AD-645 929 in that a complete detector is read into the computer memory at one time which allows a faster and more efficient program. The program integrates the LASL NGM radiation transport code differential flux output with respect to the source-energy variable weighted by a user-supplied function. The resultant output is the flux at the detectors due to the user-supplied source-energy spectrum. The method of performing the weighted source-energy integration operation and the use of checks to minimize error are given through the use of a flow diagram with complementary textual description and FORTRAN source-deck listing. The method of program operation and proper response to error signals are also described. Author

Descriptors:

• (*NUCLEAR EXPLOSIONS
• NUCLEAR RADIATION)
• (*NEUTRON CAPTURE GAMMA RAYS
• MONTE CARLO METHOD)
• (*COMPUTER PROGRAMS
• *NEUTRON TRANSPORT THEORY)
• TRANSPORT PROPERTIES
• DIGITAL COMPUTERS
• NEUTRONS
• GAMMA RAYS
• AIRBURST
• SHOCK WAVES
• DIGITAL RECORDING SYSTEMS
• FLOW CHARTING
• SUBROUTINES
• DETECTORS

Subject Categories:

• Computer Programming and Software
• Computer Hardware
• Nuclear Radiation Shielding, Protection and Safety

Distribution Statement:

APPROVED FOR PUBLIC RELEASE