The 1995 IAEA intercomparison of γ-ray spectrum analysis software

Blaauw, M.; Fernandez, V. Osorio; Espen, P. Van; Bernasconi, Gabriel D.; Noy, R. Capote; Dũng, Hồ Mạnh; Molla, N.I.

doi:10.1016/s0168-9002(97)00015-6

Cited by 39 publications

(13 citation statements)

References 9 publications

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“…6 shows the 2 values computed from the reference uncertainties only ("reference") and from the combination of both the reference and calculated uncertainties of the program ("reported") for the small peaks on a low background and all of the peaks. The reduced χ 2 values were calculated by using the same procedures as in the IAEA 1995 test [18]. The reference uncertainties denote those of peak areas which were contained in the reference list used for the IAEA 2002 test [1], and the reported uncertainties denote those of peak areas which were determined by using HyperGam.…”

Section: Analysis Of Small Peaks and Peak Areasmentioning

confidence: 99%

NEW DEVELOPMENT OF HYPERGAM AND ITS TEST OF PERFORMANCE FOR Γ-Ray SPECTRUM ANALYSIS

Park¹,

Choi²,

Park³

2012

Nuclear Engineering and Technology

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Section: Analysis Of Small Peaks and Peak Areasmentioning

confidence: 99%

NEW DEVELOPMENT OF HYPERGAM AND ITS TEST OF PERFORMANCE FOR Γ-Ray SPECTRUM ANALYSIS

Park¹,

Choi²,

Park³

2012

Nuclear Engineering and Technology

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“…Peak search thresholds were left at the default value or set to the value advised in the manual of the program. The reported peak areas were compared with the reference peak areas [10] in terms of z-scores and reduced w 2 -values, using the same procedures as in the 1995 IAEA intercomparison [2]. Special attention was paid to the small peaks on low background, these being the most important kind in low-level g-ray spectrometry.…”

Section: Peak Area Determinationmentioning

confidence: 99%

“…The results, including the diskette with the test spectra, were published as an IAEA TECDOC-1011 ''Intercomparison of g-ray analysis software packages''. In addition, two articles giving brief explanations of the test spectra, intercomparison method used and the results were published in this journal [1,2].…”

Section: Introductionmentioning

confidence: 99%

The 2002 IAEA intercomparison of software for low-level γ-ray spectrometry

Arnold

Blaauw

Fazinić

et al. 2005

Nuclear Instruments and Methods in Physics Research Section A:

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“…Measurements were performed on the HPGe detector Amanda which has a relative efficiency of 38.2% and a resolution of 1.77 keV (both at 1332.5 keV) and which is further equipped with a 'dual option' LFC (loss free counting system) ND599. All irradiations and measurements were done in quadruplicate and the obtained spectra were deconvoluted with Hypermet-PC (version 5.0) [11] which was proven to be one of the best fitting programs [12].…”

Section: Remeasurement Of Ko-factors For Individual Gamma-linesmentioning

confidence: 99%

A re-examination of coincidence and gamma-peak doublet handling in Kayzero-based NAA

et al. 1999

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In order to further strengthen at DSM Research the key analytical technique "neutron activation analysis" based on the KAYZERO/SOLCOI 9 software package, a project was recently started aiming at, among others, improvements in the correction for true-coincidence and in the automatic handling of peak multiplets. Problems could be identified in the calculation of true-coincidence correction factors for a number of analytically important cascade gamma lines of about 20 radionuclides including those formed from the elements Fe, As, Zr, Mo, Ag, Sb, some rare earth elements, Ta, W and U. As an example, in the present paper an outline is given of sources of error -caused by computer programming, decay scheme analysis or selection of relevant decay data -that are related to the measurement of 76As, 124Sb, 149Nd, 182Ta and 187W. For some radionuclides, k0-factors of analytically relevant gamma lines present in multiplets (in most cases doublets) were formerly not available. Hence, problems existed with the automatic computer-assisted conversion of input peak areas to output analytical results. Therefore, remeasurement of the individual k0-factors was carried out by using a high-performance Ge-detector and a gamma-spectrum analysis program with proven accuracy. This study involved a number of gamma lines of radionuclides for the determination of some 10 elements among which Mo, Pd, Ag, Eu and U were included. This now leads to the elimination of important data processing errors. IntroductionAt DSM Research, ko-NAA -supported by the home-designed (and commercially available) KAYZERO/SOLCOI 9 PC-software package [1] -is one of the key analytical techniques [2], complementary to XRF, ICP-MS, ICP-OES and AAS. In order to further increase its manageability and performance capability, a project was recently initiated comprising the following topics: correction for true coincidence, the automatic handling of gamma-peak multiplets, the extension of the nuclear data library with remeasured ko and Qo values, the generalisation of the implemented mother-daughter relations and the correction for fission and threshold reactions. In the present contribution, results are reported on the first two of these topics.A recent comparison of coincidence correction (COI) factors for all gamma-lines in the KAYZERO/SOLCOI ~ database, calculated with SOLCOI 9 and with two other computer codes, revealed that -although in the majority of the cases the results were consistent -sometimes significant discrepancies occurred. This initiated -for the analytically important gamma-lines among these cases -a detailed examination of possible sources of error, either caused by computer programming, decay scheme analysis or selection of relevant decay data. In the present work, examples are given for 7SAs, 124Sb, 149Nd, lS2Ta and lS7W. KAYZERO/SOLCOI 9 is unable to automatically

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The 1995 IAEA intercomparison of γ-ray spectrum analysis software

Cited by 39 publications

References 9 publications

NEW DEVELOPMENT OF HYPERGAM AND ITS TEST OF PERFORMANCE FOR Γ-Ray SPECTRUM ANALYSIS

NEW DEVELOPMENT OF HYPERGAM AND ITS TEST OF PERFORMANCE FOR Γ-Ray SPECTRUM ANALYSIS

The 2002 IAEA intercomparison of software for low-level γ-ray spectrometry

A re-examination of coincidence and gamma-peak doublet handling in Kayzero-based NAA

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