CCC-0702 ORIGEN-ARP 2.00.

1. NAME OR DESIGNATION OF PROGRAM:  ORIGEN-ARP 2.00.

3. DESCRIPTION OF PROGRAM OR FUNCTION

ORIGEN-ARP was developed for the Nuclear Regulatory Commission and the Department of Energy to satisfy a need for an easy-to-use standardized method of isotope depletion/decay analysis for spent fuel, fissile material, and radioactive material. It can be used to solve for spent fuel characterization, isotopic inventory, radiation source terms, and decay heat.

This release of ORIGEN-ARP is a standalone code package that contains an updated version of the SCALE-4.4a ORIGEN-S code. It contains a subset of the modules, data libraries, and miscellaneous utilities in SCALE-4.4a. This package is intended for users who do not need the entire SCALE package.

ORIGEN-ARP 2.00 (2-12-2002) differs from the previous release ORIGEN-ARP 1.0 (July 2001) in the following ways:

1.The neutron source and energy spectrum routines were replaced with computational algorithms and data from the SOURCES-4B code (RSICC package CCC-661) to provide more accurate spontaneous fission and (alpha,n) neutron sources, and a delayed neutron source capability was added.
2.The printout of the fixed energy group structure photon tables was removed. Gamma sources and spectra are now printed for calculations using the Master Photon Library only.

4. METHODS

ORIGEN-ARP is an automated sequence to perform isotopic depletion / decay calculations using the ARP and ORIGEN-S codes of the SCALE system. The sequence includes the OrigenArp for Windows graphical user interface (GUI) that prepares input for ARP (Automated Rapid Processing) and ORIGEN-S. ARP automatically interpolates cross sections for the ORIGEN-S depletion/decay analysis using enrichment, burnup, and, optionally moderator density, from a set of libraries generated with the SCALE SAS2 depletion sequence. Library sets for four LWR fuel assembly designs (BWR 8x8, PWR 14x14, 15x15, 17x17) are included. The libraries span enrichments from 1.5 to 5 wt% U-235 and burnups of 0 to 60,000 MWD/MTU. Other libraries (e.g., DLC-210) are available from RSICC. SCALE users can generate their own libraries for other fuel assembly designs. The interpolated cross sections from ARP are passed to ORIGEN-S to perform the depletion/decay calculations. The ORIGEN-ARP sequence includes the post-processing utility module OPUS to generate ASCII plot data files and the PlotOPUS Windows GUI to plot the data.

ORIGEN-S uses the matrix exponential method to solve a large system of coupled, linear, first-order ordinary differential equations with constant coefficients. This method is supplemented by a generalized form of the Bateman equations for the concentrations of short-lived nuclides.

5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM

Modeling assumptions that limit or restrict the usefulness or accuracy of ORIGEN-S are discussed in the documentation.

6. TYPICAL RUNNING TIME

Running times are typically less than 15 seconds on a Pentium II PC or later.

- S. Bowman:
"README for ORIGEN-ARP" (README.PDF, May 2002).
- I. Gauld, D. L. Barnett, O. W. Hermann, and S. M. Bowman:
"OPUS/PlotOPUS: An ORIGEN-S Post-Processing Utility and Plotting Program for
SCALE"
NUREG/CR-0200, Revision 7, Volume 2, Section F15, ORNL/NUREG/CSD-2/R7 Apr. 2002
- I. C. Gauld, O. W. Hermann, and R. M. Westfall:
ORIGEN-S: SCALE SYSTEM MODULE TO CALCULATE FUEL DEPLETION, ACTINIDE
TRANSMUTATION, FISSION PRODUCT BUILDUP AND DECAY,
AND ASSOCIATED RADIATION SOURCE TERMS
NUREG/CR-0200, Revision 7, Volume 2, Section F7, ORNL/NUREG/CSD-2/V2/R7
(April 2002)
- I. C. Gauld, J. C. Ryman, and O. W. Hermann:
ORIGEN-S DATA LIBRARIES," NUREG/CR-0200, Revision 7, Volume 3, Section M6,
ORNL/NUREG/CSD-2/V3/R7 (April 2002).
- S. M. Bowman and L. C. Leal:
ORIGEN-ARP: AUTOMATIC RAPID PROCESS FOR SPENT FUEL DEPLETION,
DECAY, AND SOURCE TERM ANALYSIS," NUREG/CR-0200 Revision 6,
Volume 1, Section D1, ORNL/NUREG/CSD-2/V1/R6 (March 2000).

11. HARDWARE REQUIREMENTS

ORIGEN-ARP runs on Pentium personal computers with a minimum of 32 MB RAM. Nominal hard disk requirements are less than 50 MB for a complete installation, including space for running sample problems.

13. SOFTWARE REQUIREMENTS

This system runs on Windows 95/NT or later. Fortran executables included in the package were created using the Lahey F90 Fortran compiler version 4.00e in a DOS window of Windows 2000. Makefiles, source files, and batch files are also included in the package.

The OrigenArp GUI was created using Microsoft Visual C++, and PlotOPUS was created with Microsoft Visual Basic and GigaSoft ProEssentials.

15. NAME AND ESTABLISHMENT OF AUTHORS

Contributed by:
                Radiation Safety Information Computational Center
                Oak Ridge National Laboratory
                Oak Ridge, Tennessee, U. S. A.
Developed by:   Oak Ridge National Laboratory, Oak Ridge,
                Tennessee, U.S.A.

CopyReadMe.BAT Batch file
fixdrive.exe  executable file
InstallOrigenArp.exe executable file
Install_Origen_Arp.chm Help file
linksnt.exe self-extracting file
linkswindows.exe self-extracting file
mfc42.dll
origen-arp_manuals.exe self-extracting file
OrigenArp2.00.exe self-extracting file
pfe101i.exe self-extracting file
PlotOPUS1.00.exe self-extracting file
Readme.pdf  Installation instructions
rp505enu.exe executable file
scale_origen-arp.exe self-extracting file
OrigenArp1.ini
702pc586.txt List of files
README.RSI RSICC readme file
c702.pdf Documentation in electronic form