RSIC CODE PACKAGE PSR-352 

1. NAME AND TITLE
SCAMPI: Collection of Codes for Manipulating Multigroup Cross Section Libraries in AMPX 
Format.

2. CONTRIBUTOR
Oak Ridge National Laboratory, Oak Ridge, Tennessee.

3. CODING LANGUAGE AND COMPUTER
Fortran 77 and C; IBM RS/6000, Sun, DEC and HP Workstations (P00352/MNYWS/00).

4. NATURE OF PROBLEM SOLVED
SCAMPI (Scale and Ampx Processing Interface) was prepared to facilitate the calculational
procedure for creating problem-dependent cross sections (working format) from 
problem-independent multigroup data (master library). It consists primarily of modules 
derived from PSR-315/AMPX-77 and CCC-545/SCALE4.3. Included in the package are AIM, AJAX,
ALE, ALPO, BONAMI, CORECTOL, CSAS, FILTER, GIP, ICE, LAVA, MALOCS, NITAWL, PERFUME, RADE,
UNITAB, WAX, and XSDRN. The CSASIN full-screen PC input processor that guides the user 
through the CSAS module input has been modified for SCAMPI and is also included. 
The CSAS module was modified to remove the interface with KENO and automatically provide 
output of an ANISN-formatted working library for use with codes such as CCC-543/TORT
-DORT, CCC-254/ANISN-ORNL, or CCC-474/MORSE-CGA. The GIP program was extracted from the 
CCC-543/TORT-DORT 2.12.14 package. Note that no data libraries are included in SCAMPI.

5. METHOD OF SOLUTION
The CSAS control module in SCAMPI uses engineering data and keyword input to perform 
resonance self-shielding, Doppler-broadening, and temperature interpolation of the 
thermal-scattering matrices for the specified geometry and mixtures through calls to 
SCALE and AMPX-77 functional modules. Thus, CSAS is an automated procedure which can 
create problem-dependent cross sections from data libraries in AMPX master library 
format.

6. RESTRICTIONS OR LIMITATIONS
Data libraries must be in AMPX-77 format. The CORECTOL module can be used to convert 
AMPX-II master libraries to this format.

7. TYPICAL RUNNING TIME
Run time is entirely dependent on the machine and the problems being solved.

8. COMPUTER HARDWARE REQUIREMENTS
SCAMPI runs on Unix workstations. To facilitate installation, makefiles are included for 
IBM RS/6000, Sun, DEC Alpha and HP. Approximately 25 MB of disk space is required to 
build the executables.

9. COMPUTER SOFTWARE REQUIREMENTS
The programs are written in Fortran 77 and C. SCAMPI runs on these systems: IBM AIX with 
both the f77 and xlf90 compilers, Sun with both Solaris and SunOS4, DEC Alpha under 
OSF/1 and also on Ultrix, and HPUX 9.0.3.

10. REFERENCES
"The CSASIN Processor for the SCAMPI Code System," excerpted and modified from 
"OFFSCALE: A PC Input Processor for the SCALE Code System Volume 1: The CSASIN Processor 
for the SCAMPI Code System," by S. M. Bowman, NUREG/CR-6182,Vol. 1 (ORNL/TM-12663/V1) 
(February 1995).
Portions excerpted from "SCALE: A Modular Code System for Performing Standardized 
Computer Analyses for Licensing Evaluation," NUREG/CR-200 Rev. 5 (ORNL/NUREG/CSD-2, 
Rev. 5) (1995).
Portions excerpted from "AMPX-77 A Modular Code System for Generating Coupled Multigroup 
Neutron Gamma Cross Section Libraries from ENDF/B-IV and/or ENDF/B-V," by N. M. Greene, 
W. E. Ford, III, L. M. Petrie, and J. W. Arwood, ORNL/CSD/TM-283 (October 1992).
"Section 3: GIP: Group-Organized Cross Section Input Program," of "DOS: The Discrete 
Ordinates System," by W. A. Rhoades, M. B. Emmett, ORNL/TM-8362 (September 1982). 

11. CONTENTS OF CODE PACKAGE
Included are the referenced documents, source files and makefiles written on one diskette
in a tar file compressed with the GNU gzip command. The CSASIN program is included on a 
separate DS/HD 3.5-in. (1.44 MB) diskette in DOS format.

12. DATE OF ABSTRACT
September 1995.

KEYWORDS: MULTIGROUP CROSS SECTION PROCESSING; WORKSTATION