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PSR-0085 NAISAP.

NAISAP, Theory and Use of Gamma-Ray Spectrum Analysis Codes for NaI(Tl) Detectors.

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1. NAME OR DESIGNATION OF PROGRAM:  NAISAP.
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2. COMPUTERS
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Program name Package id Status Status date
NAISAP PSR-0085/01 Tested 15-OCT-2002

Machines used:

Package ID Orig. computer Test computer
PSR-0085/01 FACOM 230/60 PC Windows
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3. DESCRIPTION OF PROGRAM OR FUNCTION

NAISAP analyses the NaI(Tl) gamma-ray spectrum and other types of spectra to determine the energies and intensities of the peaks detected. The spectrum is plotted optionally.
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4. METHODS

The analysis is carried out by the photopeak method on the basis of the NaI(Tl) response function represented in an analytical form. The peak search is based on the first derivative method accompanied with various peak shape tests. The usual least squares method is adopted for resolving the complex of peaks. Values of the parameters for constructing the NaI(Tl) response are stored as data for two detector sizes: 1-3/4" phi x 2" and 3" phi x 3."
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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM

NAISAP accepts a spectrum of a maximum of 1024 channels with up to 49 peaks. Response functions of detectors with dimensions different from those mentioned above must be given by the user in specifying the parameters as functions of the photon energy.
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6. TYPICAL RUNNING TIME

NAISAP requires approximately one second for the analysis of each peak.
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7. UNUSUAL FEATURES
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8. RELATED OR AUXILIARY PROGRAMS
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9. STATUS
Package ID Status date Status
PSR-0085/01 15-OCT-2002 Tested at NEADB
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10. REFERENCES
PSR-0085/01, included references:
- H. Baba:
Usage of the BOB7-Series Programs for the Analysis of Ge(Li) Gamma-Ray Spectra
JAERI-M 7017 (March 1977).
- H. Baba, T. Sekine, S. Baba, and H. Okashita:
A Method of the Gamma-Ray Spectrum Analysis: Fortran IV Programs 'BOB 73'
for Ge(Li) Detectors and 'NAISAP' for NaI(Tl) Detectors," JAERI 1227 (June 1973
- H. Baba, H. Okashita, S. Baba, T. Suzuki, H. Umezawa, and H. Natsume:
Fast Computer Analysis of the Gamma Spectrum from Ge(Li) Detectors,
J. Nucl. Sci.Technol., Vol. 8, No. 12 (December 1971) 41-50.
- S. Baba, H. Baba, and H. Okashita:
BOB70: Program Code for the Analysis of Gamma Ray Spectra from a Ge(Li) Detector
ORNL-tr-2939/JAERI 1216 (April 1971)
- T. Sekine, S. Baba, H. Baba:
Analytical Functions Representing Response Functions of NaI(Tl) Detector
Systems to Gamma Rays
ORNL-tr-2941/JAERI-M 4590 (September 1971)
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11. HARDWARE REQUIREMENTS

NAISAP is operable on the FACOM 230-60 computer. A 76 K word memory is required. A CALCOMP plotter is optional.
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12. PROGRAMMING LANGUAGE(S) USED
Package ID Computer language
PSR-0085/01 FORTRAN-IV
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13. SOFTWARE REQUIREMENTS:  A Fortran IV compiler is required.
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14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS
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15. NAME AND ESTABLISHMENT OF AUTHORS

Contributed by:
                    Radiation Safety Information
                    Computational Center
                    Oak Ridge National Laboratory
                    Oak Ridge, Tennessee, U. S. A.

Developed by:       Japan Atomic Energy Research Institute,
                    Tokai Research Establishment,
                    Ibaraki-Ken, Japan.
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16. MATERIAL AVAILABLE
PSR-0085/01
F01 NAISAP FORTRAN IV SOURCE
F02 SAMPLE DATA
F03 SAMPLE OUTPUT
PSR_85_1.PDF Documentation
085f2306.txt List of files
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17. CATEGORIES
  • O. Experimental Data Processing

Keywords: data processing, gamma ray, spectra, unfolding.