HRG3; slowing-down spectrum, multigroup constants. [UNIVAC1108; IBM360,370; FORTRAN IV]

Technical Report ·

OSTI ID:6489127

Carter, J L

The code computes the slowing down spectrum over the energy range 10 MeV to 0.414 eV in either the B1 or P1 approximation, using 68 groups of neutrons with a constant group width of delta u = 0.25. The calculated flux and current spectra are used to reduce the original 68-group cross section data to average values over as many as 33 broad groups. Output is printed and may also be punched in formats for input to any of several spatial multigroup codes.UNIVAC1108;IBM360,370; FORTRAN IV; CSCX (UNIVAC1108), OS/360 (IBM360); 64K memory, normal input, output, program, and punch units, 1 unit for library, 1 to 4 scratch units or their equivalent on drum (UNIVAC1108); 200K memory, standard I/O units, 1 unit for library, and 1 scratch unit (IBM360).

• Research Organization: Pacific Northwest Lab., Richland, WA (USA)
• OSTI ID: 6489127
• Report Number(s): ANL/NESC-467; ON: DE83048467
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
220100* -- Nuclear Reactor Technology-- Theory & Calculation
654003 -- Radiation & Shielding Physics-- Neutron Interactions with Matter
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
B CODES
BARYONS
COMPUTER CODES
CROSS SECTIONS
ELASTIC SCATTERING
ELEMENTARY PARTICLES
FERMIONS
GROUP CONSTANTS
HADRONS
INELASTIC SCATTERING
N CODES
NEUTRONS
NUCLEONS
SCATTERING
SLOWING-DOWN