**1. NAME AND TITLE**

ANIPLO-D50: A Digital Computer Program for Plotting Results from Calculations with
the S_{n} Computer Program ANISN.

**2. CONTRIBUTOR**

Gesellschaft f. Kernenergieverwertung in Schiffbau und Schiffahrt mbH, West Germany through
the NEA Data Bank, Gif-sur-Yvette, France.

**3. CODING LANGUAGE AND COMPUTER**

Fortran IV; IBM 3033.

**4. NATURE OF PROBLEM SOLVED**

ANIPLO-D50 plots results determined by the use of the discrete ordinates neutron and gamma ray
transport code ANISN. In particular, the space-dependent scalar fluxes and responses such as the dose
rate may be plotted.

**5. METHOD OF SOLUTION**

The input is divided into two parts: 1) the "library: data defining the energy group structure, the spatial mesh, and giving the scalar flux in the configuration," and 2) the "problem" data which is repeated for each plot required, giving the title of the plot and the x and y axes, and the flux to dose conversion factor if dose rates are plotted. Fluxes and doses (for each energy group and summed over all groups) are plotted against the space variable. The scalar fluxes are read in from cards, output from ANISN when ID1 = 2.

Flexibility is available in the size of the plot, log. or lin. axes, etc.

**6. RESTRICTIONS OR LIMITATIONS**

The maximum number of energy groups is 25. The maximum number of spatial intervals is 400.

**7. TYPICAL RUNNING TIME**

A sample problem with 9 energy groups and 73 intervals takes 0.46 minutes on an IBM 3033
computer.

**8. COMPUTER HARDWARE REQUIREMENTS**

ANIPLO-D50 is operable on the IBM 3033 computer.

**9. COMPUTER SOFTWARE REQUIREMENTS**

A Fortran IV compiler is required.

**10. REFERENCES**

**Included in Documentation:**

R. Dietrich, "ANIPLO-D50 - A Computer Code for Plotting Results Determined by Using the
Discrete Ordinates Code ANISN," NEA Computer Program Library Newsletter No. 20 (July 1976).

**Background Information:**

W. E. Engle, Jr., "ANISN, A One-Dimensional Discrete Ordinates Transport Code with
Anisotropic Scattering," K-1693 (1967).

**11. CONTENTS OF CODE PACKAGE**

Included are the referenced document and one (1.2MB) DOS diskette which contains the source
program.

**12. DATE OF ABSTRACT**

September 1985.

**KEYWORDS: ** NEUTRON; GAMMA-RAY