GRPNL2. Fitting Gamma & X-ray Peak Multiplets
- EG and G Mound, Miamisburg, OH (United States)
GRPNL2 is a general-purpose, automated peak-fitting program for calculating gamma-ray and x-ray peak areas of complex multiplets in spectra taken with germanium detectors. It is a non-interactive version of the GRPANL (GRouP ANaLysis) program designed for ease of repetitive analyses. An iterative least-squares technique is used for the multiplet fitting process. The peak shape algorithm used describes the peak as a Gaussian plus a low-energy side tailing term. This tailing term is further divided into short-term tailing and long-term tailing. The Gaussian portion of the peak can be described by three parameters - the peak centroid, the peak height at the centroid, and the peak width parameter, which is proportional to the full width at half maximum of the peak and thus, a measure of the resolution of the detector system. Three disk files contain the input data for the program: the peak shape parameter file, the analysis parameter file, and the spectral data file. Three auxiliary programs are included: GRFEDT, which creates and edits the analysis parameter file containing the parameters for the spectral regions to be fit by GRPNL2; DETFIL, which creates and edits the detector parameter file; and PKANAL, an interactive program employing the GRPNL2 peak shape algorithm which is used only for fitting singlets, and hence, well suited for determining the peak shape constants.
- Research Organization:
- EG and G Mound Applied Technologies, Miamisburg, OH (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- OSTI ID:
- 145767
- Report Number(s):
- ESTSC-000487D113400; NESC-9876
- Resource Relation:
- Other Information: PBD: 7 Feb 1984
- Country of Publication:
- United States
- Language:
- English
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