Computer Programs

CCC-0255 ANISN-W.

CCC-0255 ANISN-W.

ANISN-W, 1-D Transport Calculation for Deep Penetration Problems

NAME OR DESIGNATION OF PROGRAM, COMPUTER, DESCRIPTION OF PROBLEM OR FUNCTION, METHOD OF SOLUTION, RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM, TYPICAL RUNNING TIME, UNUSUAL FEATURES OF THE PROGRAM, RELATED AND AUXILIARY PROGRAMS, STATUS, REFERENCES, MACHINE REQUIREMENTS, LANGUAGE, OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED, OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS, NAME AND ESTABLISHMENT OF AUTHOR, MATERIAL, CATEGORIES

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1. NAME OR DESIGNATION OF PROGRAM: ANISN-W.

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2. COMPUTERS

To submit a request, click below on the link of the version you wish to order. Rules for end-users are available here.

Program name	Package id	Status	Status date
ANISN-W	CCC-0255/01	Tested	01-JAN-1978

Machines used:

Package ID	Orig. computer	Test computer
CCC-0255/01	CDC CYBER 172	CDC CYBER 172

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3. DESCRIPTION OF PROBLEM OR FUNCTION

ANISN-W solves the one- dimensional Boltzmann transport equation for neutrons or gamma rays in slab, sphere or cylinder geometry. The source may be fixed, fission, or a subcritical combination of the two. Criticality search may be performed on any one of several parameters. Cross sections may be weighted using the space and energy dependent flux generated in solving the transport equation.

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4. METHOD OF SOLUTION

The solution technique is an advanced discrete ordinates method which represents a generalization of the method originated by G.C. Wick and greatly developed to curvilinear geometry by B.G. Carlson at Los Alamos Scientific Laboratory. ANISN-W was designed to solve deep-penetration problems in which angle-dependent spectra are calculated in detail. The principal feature that makes it suitable for such problems is the use of a programming technique with optional data-storage configurations which allows execution of small, intermediate and extremely large problems. ANISN-W also includes a technique for handling general anisotropic scattering, point-wise convergence criteria, and alternate step function difference equations that effectively remove the oscillating flux distributions sometimes found in discrete ordinates solutions.

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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM:
Problem size is limited only by machine size.

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6. TYPICAL RUNNING TIME

Depending on problem size, type, and convergence, running time has varied from less than one minute to several hours.

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7. UNUSUAL FEATURES OF THE PROGRAM:

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8. RELATED AND AUXILIARY PROGRAMS

DOQ:   Discrete Ordinates Quadrature Coefficients Data Generator
ADOQ: Asymmetric Discrete Ordinates Quadrature Coefficients Data        Generator
GAMLEG-W: Multigroup Photon Transport Cross Section Data Generator
PERT-1D: Linear First Order Perturbation Equation Solver - Using           the ANISN-W Forward and Adjoint Angular Fluxes.

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9. STATUS

Package ID	Status date	Status
CCC-0255/01	01-JAN-1978	Tested at NEADB

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10. REFERENCES

-   R.G. Soltesz and R.K. Disney :
    Nuclear Rocket Shielding Methods, Modification, Updating, and
    Input Data Preparation
    WANL-PR-(LL)-034 (August 1970):
    Volume 2, Section 2 "GAMLEG-W"
    Volume 4, "One-Dimensional Discrete Ordinates Transport
               Technique"
    Volume 5, "Descriptions of DOQ and ADOQ"
-   WANL-PR-(LL)-040 (December 1971), Workshop Notes.
-   R.K. Disney et al. :
    ANISN-W
    WANL-TME-2778 (February 1971)
-   R.G. Soltesz :
    Revised WANL ANISN Program User's Manual
    WANL-TMI-1967, Supplement 1969
-   R. Douglas O'Dell and Raymond E. Alcouffe:
    Transport Calculations for Nuclear Analyses: Theory and
    Guidelines for Effective Use of Transport Codes
    LA-10983-MS and UC-32 (September 1987)

CCC-0255/01, included references:

- Enrico Sartori:
Note to all recipients of various versions of ANISN
NDB/93/0931 (27 August, 1993)

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11. MACHINE REQUIREMENTS

CDC 6600: ANISN-W uses one tape unit excluding standard I-O.
It is channel dependent. It uses a punch and a printer.

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12. PROGRAMMING LANGUAGE(S) USED

Package ID	Computer language
CCC-0255/01	FORTRAN-IV

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13. OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED

A FORTRAN IV compiler is required and overlay is used. Punched card output optional, controlled by input.

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14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS:

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15. NAME AND ESTABLISHMENT OF AUTHOR

Contributed by : Oak Ridge National Laboratory
Oak Ridge, Tennessee, U.S.A.

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16. MATERIAL AVAILABLE

CCC-0255/01

File name	File description	Records
CCC0255_01.001	SOURCE PROGRAM F4-BCD	4110
CCC0255_01.002	SAMPLE PROBLEM DATA	793
CCC0255_01.003	SAMPLE PROBLEM PUNCHED OUTPUT	36
CCC0255_01.004	SAMPLE PROBLEM PRINTED OUTPUT	4303
CCC0255_01.005	FIDO SOURCE FOR ANISN-W F4-BCD	230
CCC0255_01.006	ADJOINT WEIGHTING ROUTINE F4-BCD	690
CCC0255_01.007	ADOQ SOURCE F4-BCD	182
CCC0255_01.008	ADOQ INPUT DATA	425
CCC0255_01.009	ADOQ PUNCHED OUTPUT	886
CCC0255_01.010	DOQ SOURCE F4-BCD	636
CCC0255_01.011	DOQ INPUT DATA	24
CCC0255_01.012	DOQ PUNCHED OUTPUT	241
CCC0255_01.013	FFREAD SOURCE F4-BCD	119
CCC0255_01.014	FFPUN + FLTFX SOURCE F4-BCD	148
CCC0255_01.015	PERT1D SOURCE F4-BCD	988
CCC0255_01.016	GAMLEG-W SOURCE F4-BCD	617
CCC0255_01.017	GAMLEG LIBRARY BCD	950

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17. CATEGORIES

C. Static Design Studies
J. Gamma Heating and Shield Design

Keywords: absorption, anisotropic scattering, buckling, cross sections, cylinders, discrete ordinate method, fission, gamma radiation, neutron transport theory, one-dimensional, shielding, slabs, spheres, transport theory.