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[Program Service | Recent programs]

NEA-0480 ADDELT. (Abstract last modified 01-APR-1979)


ADDELT, Scattering Law Correlation for Delta Function Phonon Spectra

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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 - ADDELT.


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
ADDELT               NEA-0480/01 Tested

Machines used:
Package-ID     Orig.Computer                       Test Computer
NEA-0480/01    IBM 360 series                      IBM 360 series

3. NATURE OF PHYSICAL PROBLEM SOLVED - An input scattering law s(alpha,beta) is read and the effects of delta functions in the phonon frequency function are added.


4. METHOD OF SOLUTION - See AEEW - M 1200 (UKAEA Report).


5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM - The arrays can be increased in size to incorporate larger problems. Currently the input and output S(alpha,beta) can be described using a 90 x 90 alpha/beta mesh.


6. TYPICAL RUNNING TIME - 3 minutes on ICL 470 to add the effects of 3 delta functions to an input S(alpha,beta) represented at 90 x 90 alpha/beta mesh points.


7. UNUSUAL FEATURES OF THE PROGRAM. Deals with delta functions in the phonon frequency function.


8. RELATED AND AUXILIARY PROGRAMS - LEAP. S1CALC. PIXSE.


9. STATUS
NEA-0480/01: 01-APR-1979 Tested at NEADB


10. REFERENCES  - 
- AEEW M 1200 (UKAEA Report).
- AERE R 3803 (UKAEA Report).
NEA-0480/01:


11. MACHINE REQUIREMENTS -
2 work discs.
CLOCK subroutine.
High speed memory - amount depends on array sizes.
Input and output magnetic tape units.


12. PROGRAMMING LANGUAGE(S) USED -
NEA-0480/01: FORTRAN-IV 


13. OPERATING SYSTEM OR MONITOR UNDER WHICH PROGRAM IS EXECUTED - Operating on ICL system-4 but written to be transportable to other operating systems.


14. ANY OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS -


15. NAME AND ESTABLISHMENT OF AUTHOR -
Original author - R.C.F. McLatchie
                  AERE Harwell
                  Didcot, Oxfordshire, United Kingdom
Subsequent author - A.T.D. Butland
                    AEEW Winfrith
                    Dorchester, Dorset, United Kingdom.


16. MATERIAL AVAILABLE -
NEA-0480/01:
NEA0480_01.002    INFORMATION                                        22 records
NEA0480_01.003    SOURCE PROGRAM -- L30 (F4,EBCDIC)                 288 records
NEA0480_01.004    SOURCE PROGRAM -- L37 (F4,EBCDIC)                 255 records
NEA0480_01.005    SOURCE PROGRAM -- CALPIN (ASSEMBLER)               99 records
NEA0480_01.006    OVERLAY CARDS                                       4 records
NEA0480_01.007    SAMPLE PROBLEM INPUT DATA                           4 records
NEA0480_01.008    SAMPLE PROBLEM PRINTED OUTPUT                   11018 records
NEA0480_01.009    JCL                                                46 records


17. CATEGORIES  - 

- A.  Cross Section and Resonance Integral Calculations


Keywords: LATTICE VIBRATIONS, PHONONS, SCATTERING LAW

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