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CCC-0295 ELGATL.

ELGATL, Calculation of Energy Spectra from Coupled Electron-Photon Slowing Down

NAME OR DESIGNATION OF PROGRAM, COMPUTER, DESCRIPTION OF PROGRAM OR FUNCTION, METHODS, RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM, TYPICAL RUNNING TIME, AUXILIARIES, STATUS, REFERENCES, HARDWARE REQUIREMENTS, LANGUAGE, SOFTWARE REQUIREMENTS, NAME AND ESTABLISHMENT OF AUTHORS, MATERIAL, CATEGORIES
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1. NAME OR DESIGNATION OF PROGRAM:  ELGATL
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2. COMPUTERS
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Program name Package id Status Status date
ELGATL CCC-0295/01 Arrived 28-MAR-2011

Machines used:

Package ID Orig. computer Test computer
CCC-0295/01 CDC 6600
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3. DESCRIPTION OF PROGRAM OR FUNCTION

ELGATL calculates electron and photon track lengths in uniform homogeneous media accounting for all major physical particle interactions. It was designed for problems where only energy spectra and not position and direction of particles are required or where source is uniformly distributed.
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4. METHODS

ELGATL incorporates the direct numerical integration of coupled electron-photon track length equations using iterative techniques.
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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM

ELGATL is valid for energies ranging from 10 keV to over 10 GeV.
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6. TYPICAL RUNNING TIME

Typical running time is approximately 10 minutes on the CDC-6600 for 500 energy groups, but it is highly dependent upon the number of groups due to the iterative numerical technique.
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8. RELATED OR AUXILIARY PROGRAMS
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9. STATUS
Package ID Status date Status
CCC-0295/01 28-MAR-2011 Masterfiled Arrived
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10. REFERENCES
CCC-0295/01, included references:
- H. L. Beck:
"Energy Spectra from Coupled Electron-Photon Slowing Down," HASL-309 (August
1976).
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11. HARDWARE REQUIREMENTS:  A CDC-6600 computer is required.
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12. PROGRAMMING LANGUAGE(S) USED
Package ID Computer language
CCC-0295/01 FORTRAN-IV
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13. SOFTWARE REQUIREMENTS:  A FORTRAN IV compiler is required.
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15. NAME AND ESTABLISHMENT OF AUTHORS

Contributed by:
                Radiation Shielding Information Center
                Oak Ridge National Laboratory
                Oak Ridge, Tennessee, USA

Developed by:   U.S. Department of Energy Environmental Measurements Lab.,
                New York, New York, USA
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16. MATERIAL AVAILABLE
CCC-0295/01
source code
sample problem input
electronic documentation
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17. CATEGORIES
  • W. Physics

Keywords: coupled, electrons, gamma ray, homogeneous, numerical solution, particle interactions, spectra.