HFN; one-dimensional, multigroup diffusion in slabs, cylinders, and spheres. [UNIVAC1107; CDC6600,CYBER74; FORTRAN IV (99. 9%) and SLEUTH-II (0. 1%) (UNIVAC1107), FORTRAN IV (CDC6600)]
HFN solves the homogeneous or inhomogeneous one-dimensional multigroup diffusion equation for its lowest eigenvalue and the corresponding direct and/or adjoint eigenvectors. Inhomogeneous boundary conditions and a flexible scatter-transfer matrix structure are included. Optional calculations include criticality searches, detector activation traverses, and integrals for perturbation theory analysis.UNIVAC1107;CDC6600,CYBER74; FORTRAN IV (99.9%) and SLEUTH-II (0.1%) (UNIVAC1107), FORTRAN IV (CDC6600); CSC EXEC2 Package B (UNIVAC1107), SCOPE 3.4 (CDC6600); 64K UNIVAC1107 with 786,432 word drum (exclusive of system requirements), a tape unit, on-line printer, card reader and clock. The CDC version requires 122K (octal) words of memory.
- Research Organization:
- Hanford Engineering Development Lab., Richland, WA (USA)
- OSTI ID:
- 6233084
- Report Number(s):
- ANL/NESC-241; ON: DE83048241
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
COMPUTER CODES
CRITICALITY
CYLINDERS
DIFFERENTIAL EQUATIONS
EQUATIONS
H CODES
MULTIGROUP THEORY
NEUTRON DIFFUSION EQUATION
NEUTRON TRANSPORT THEORY
ONE-DIMENSIONAL CALCULATIONS
SPHERES
TRANSPORT THEORY