ESTS0742 GENAEA.

GENAEA, Alpha Spectra Unfolding

NAME OR DESIGNATION OF PROGRAM, COMPUTER, DESCRIPTION OF PROGRAM OR FUNCTION, METHOD OF SOLUTION, RESTRICTIONS, TYPICAL RUNNING TIME, FEATURES, RELATED AND AUXILIARY PROGRAMS, STATUS, REFERENCES, REQUIREMENTS, LANGUAGE, OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED, OTHER RESTRICTIONS, NAME AND ESTABLISHMENT OF AUTHORS, MATERIAL, CATEGORIES

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1. NAME OR DESIGNATION OF PROGRAM: GENAEA.

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2. COMPUTERS

To submit a request, click below on the link of the version you wish to order. Only liaison officers are authorised to submit online requests. Rules for requesters are available here.

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.