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[Program Service | Recent programs]

CCC-0612 ALPHN. (Abstract last modified 06-OCT-1994)


ALPHN, (Alpha, N) Neutron Production in High-Level Waste Canisters

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Abstract Table of Contents:

NAME | COMPUTER | PROBLEM | SOLUTION | RESTRICTIONS | CPU | FEATURES | AUXILIARIES | STATUS | REFERENCES | REQUIREMENTS | LANGUAGE | OPERATING SYSTEM | OTHER RESTRICTIONS | AUTHOR | MATERIAL | CATEGORIES |

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1. NAME OR DESIGNATION OF PROGRAM - ALPHN. 


2. COMPUTER FOR WHICH PROGRAM IS DESIGNED AND OTHER MACHINE VERSION PACKAGES AVAILABLE -

To request or retrieve programs click on the one of the active versions below. A password and special authorization is required.

Explanation of the status codes.

Program-name         Package-ID  Status
ALPHN                CCC-0612/01 Tested

Machines used:
Package-ID     Orig.Computer                       Test Computer
CCC-0612/01    IBM PC                              PC-80486

3. DESCRIPTION OF PROGRAM OR FUNCTION - The ALPHN program calculates the (alpha,n) neutron production rate in a mixture of chemical species receiving alpha-particles from alpha-emitting actinides.


4. METHOD OF SOLUTION - The user specifies the mass fractions of the chemical species in the mixture and the curies of each actinide. Other basic data (stopping powers and thick-target yields) are supplied from the data libraries distributed with the program. The method of West is used to calculate the neutron yield for a single alpha-particle energy. The total neutron production rate per canister is the summation taken over all actinides i, and actinide i is assumed to emit a-particles with a single average initial energy.


5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM - The total mixture yield calculated is a source term and does not take into account the shielding effect of the glass. For a given glass composition, the user can calculate up to eight cases simultaneously.


6. TYPICAL RUNNING TIME - Run time for a typical problem containing 20 chemical species, 24 actinides, and 8 decay times was 34 seconds on an IBM AT personal computer.

CCC-0612/01:

ALPHN was run at the NEA-DB on a 66-MHz PC/80486. Only a few tenths of a second of elapsed time are needed to execute the "test case".


7. UNUSUAL FEATURES OF THE PROGRAM - 


8. RELATED AND AUXILIARY PROGRAMS - 
Data Libraries 
- STPN6A.OU3: Stopping powers and yields. 
- CURIES.IN9: Alpha curies of each actinide. 


9. STATUS
CCC-0612/01: 06-OCT-1994 Tested at NEADB


10. REFERENCES  - 
CCC-0612/01:
- R. Salmon and O.W. Hermann:
  ALPHN - A Computer Program for Calculating (alpha,n) Neutron
  Production in Canisters of High-Level Waste
  ORNL/TM-12239 (October 1992).


11. MACHINE REQUIREMENTS - ALPHN was developed on IBM personal computers. The executable included in the package was created on an IBM PC 486 compatible with 640 kB memory and a math co-processor.

CCC-0612/01:

The sample problems were run at the NEA-DB on a PC DELL 466/L (processor 80486, 66 MHz, 16 Mbytes of installed RAM). The size of the executable file produced using the Microsoft compiler and linker is 41 Kbyte, whereas the size of the executable file created using the Lahey compiler and linker (using the stub loader) is 277 Kbytes.


12. PROGRAMMING LANGUAGE(S) USED -
CCC-0612/01: FORTRAN-77 


13. OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED - The executable included in the package was created using the Ryan-McFarland Version 2.10 compiler under DOS Version 5.0.

CCC-0612/01:

ALPHN was run under MS-DOS 6.2. Two different executable files were created, compiled and linked respectively with: - the Lahey F77L-EM32 FORTRAN 77 compiler version 5.20 and the Lahey linker 386LINK version 5.1 and - the Microsoft FORTRAN 77 compiler version 5.10 and linker version 5.15.


14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS - 


15. NAME AND ESTABLISHMENT OF AUTHORS - 
Contributed by: 
                Radiation Shielding Information Center 
                Oak Ridge National Laboratory 
                Oak Ridge, Tennessee, U. S. A. 


16. MATERIAL AVAILABLE -
CCC-0612/01:
CCC0612_01.001    ALPHN Information File                            190 records
CCC0612_01.002    Source file of the ALPHN program                  416 records
CCC0612_01.003    Batch file to create the MicroSoft exec.           34 records
CCC0612_01.004    Batch file to create the Lahey executable          35 records
CCC0612_01.005    ALPHN executable (MicroSoft compiler+linker)        0 records
CCC0612_01.006    ALPHN executable (Lahey compiler+linker)            0 records
CCC0612_01.007    Sample input file                                  22 records
CCC0612_01.008    Input file w/ stopping power and yield data         0 records
CCC0612_01.009    Input file w/ alpha curies per actinide            25 records
CCC0612_01.010    Sample output file                                887 records
CCC0612_01.011    Lahey file for run-time errors (English)            0 records
CCC0612_01.012    DOS file-names                                     11 records


17. CATEGORIES  - 

- B. Spectrum Calculations, Generation of Group Constants and Cell Problems
- R. Environmental and Earth Sciences


Keywords: ACTINIDES, ALPHA PARTICLES, RADIOACTIVE WASTE STORAGE

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