PCGAP: Users Guide and Algorithm Description

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Description

PCGAP is a software package, which was written to provide gamma-ray pulse height spectrum analysis on a personal computer platform using the Windows NT operating system. It is a collection of programs, which provide a wide range of operability extending from the single user environment to the general purpose counting room. Included in the package are necessary data structures and libraries used to compute quantitative radionuclide concentrations. PCGAP also contains techniques to decontaminate photopeak interferences; determine activity concentrations for radionuclides independent of their associated spectral photopeak size; and three methods to determine the energy scale of a spectrum. PCGAP performs ... continued below

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769 Kilobytes pages

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Killian, E.W. & Hartwell, J.K. September 30, 2000.

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Description

PCGAP is a software package, which was written to provide gamma-ray pulse height spectrum analysis on a personal computer platform using the Windows NT operating system. It is a collection of programs, which provide a wide range of operability extending from the single user environment to the general purpose counting room. Included in the package are necessary data structures and libraries used to compute quantitative radionuclide concentrations. PCGAP also contains techniques to decontaminate photopeak interferences; determine activity concentrations for radionuclides independent of their associated spectral photopeak size; and three methods to determine the energy scale of a spectrum. PCGAP performs a non-linear least squares fitting of a Gaussian function to spectral photopeaks. The fitting algorithm can fit up to five concurrent photopeaks using a common spectral background. The package includes a program that will automatically locate spectral photopeaks, fit them to a Gaussian fu nction, identify the radionuclides associated with the found photopeaks, and compute a net activity concentration, and for an 8K spectrum do it in less than 30 seconds on a reasonably configured PC. PCGAP also includes a program which allows the operator to manually (using mouse clicks) identify photopeak locations, fit limits and background positions, initiate a fit to the photopeaks and then display the resulting Gaussian function forms. This interactive display function is particularly useful to resolve or properly fit photopeaks with complex adjacent structure and for photopeaks that are near the limit of detection.

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769 Kilobytes pages

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OSTI as DE00800710

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  • Other Information: PBD: 30 Sep 2000

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  • Report No.: INEEL/EXT-2000-00908
  • Grant Number: AC07-99ID13727
  • DOI: 10.2172/800710 | External Link
  • Office of Scientific & Technical Information Report Number: 800710
  • Archival Resource Key: ark:/67531/metadc737012

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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Creation Date

  • September 30, 2000

Added to The UNT Digital Library

  • Oct. 19, 2015, 7:39 p.m.

Description Last Updated

  • April 27, 2016, 3:38 p.m.

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Killian, E.W. & Hartwell, J.K. PCGAP: Users Guide and Algorithm Description, report, September 30, 2000; Idaho Falls, Idaho. (digital.library.unt.edu/ark:/67531/metadc737012/: accessed November 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.