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ESTS0742 GENAEA.

GENAEA, Alpha Spectra Unfolding

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1. NAME OR DESIGNATION OF PROGRAM:  GENAEA.
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2. COMPUTERS
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Program name Package id Status Status date
GENAEA ESTS0742/01 Arrived 09-MAR-2001

Machines used:

Package ID Orig. computer Test computer
ESTS0742/01 IBM PC
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3. DESCRIPTION OF PROGRAM OR FUNCTION

GENAEA is a general alpha energy analysis (AEA) program for data reduction. GENAEA determines peak quantities, relative abundance, and, where identification can be made, individual isotopic activities. Also, GENAEA can automatically calibrate an instrument and allow for detector efficiency.
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4. METHOD OF SOLUTION

GENAEA accepts computer-stored, multichannel-analyzer data that describe the AEA spectra. The spectra are compressed and smoothed to reduce statistical noise found in counting systems and, in particular AEA spectra. A peak search is performed by examining the second derivative of the conditioned spectra. This method finds many peaks and most peaks are eliminated by further testing the derivative slope in the region surrounding the peak. The calculated peak energies are compared to a table of standards for assignment.
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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM
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6. TYPICAL RUNNING TIME

For a 5 peak spectrum, the time ranged from
less than 1 minute on an IBM-PS2/70 to 20 minutes on an IBM-PC/XT.
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7. UNUSUAL FEATURES: UNUSUAL FEATURES OF THE PROGRAM
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8. RELATED AND AUXILIARY PROGRAMS

Alpha spectra have to be available
from user directed data files such as EG & G Ortec adcam and the
Nucleus PCA systems.
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9. STATUS
Package ID Status date Status
ESTS0742/01 09-MAR-2001 Masterfiled Arrived
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10. REFERENCES
ESTS0742/01, included references:
- G.L. Troyer:
  Automated Calculation of Alpha Energy Spectra
  WHC-EP-0346 (June 1990)
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11. HARDWARE REQUIREMENTS: MACHINE REQUIREMENTS
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12. PROGRAMMING LANGUAGE(S) USED
Package ID Computer language
ESTS0742/01 FORTRAN-77, ASSEMBLER
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13. OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED:  MSDOS 3.0 or higher.
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14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS
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15. NAME AND ESTABLISHMENT OF AUTHORS

                G.L. Troyer
                Westinghouse Hanford Co.
                Richland, WA, U.S.A.
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16. MATERIAL AVAILABLE
ESTS0742/01
AEA.BAT Batch file
AEA.EXE MS DOS executable file format
AEADETCL.DT Detector calibration file
AEAINIT.DT Initialisation file
SIMPAEA.DT Simplex projection constants data
AEAISONM.DT Isotope library
AEAREQST.SC Text file containing names of previously stored spectrum files
README Information file
NOVACSTD.SPM
VACSTD.SPM
AEAVAC.SPM
AEANOVAC.SPM
REV140.WP Word Perfect file report: General Alpha Energy Analysis Rev. 1.40
REV140.TXT Text file report: General Alpha Energy Analysis Rev. 1.40
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17. CATEGORIES
  • O. Experimental Data Processing

Keywords: alpha spectra, spectra unfolding.