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Detection efficiency evaluation for low energy of a NaI(Tl) scintillation detector. Radiat Phys Chem Oxf Engl 1993 2022. [DOI: 10.1016/j.radphyschem.2022.110325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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2
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Calculating off-axis efficiency of coaxial HPGe detectors by Monte Carlo simulation. Radiat Phys Chem Oxf Engl 1993 2022. [DOI: 10.1016/j.radphyschem.2022.110241] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Semkova V, Otuka N, Plompen A. Uncertainties of calculated coincidence-summing correction factors in gamma-ray spectrometry. EPJ WEB OF CONFERENCES 2020. [DOI: 10.1051/epjconf/202023912003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Uncertainty propagation to the γ-γ coincidence-summing correction factor from the covariances of the nuclear data and detection efficiencies have been formulated. The method was applied in the uncertainty analysis of the coincidence-summing correction factors in the γ-ray spectrometry of the 134Cs point source using a p-type coaxial HPGe detector.
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Montalván Olivares DM, Guevara MM, Velasco FG. Determination of the HPGe detector efficiency in measurements of radioactivity in extended environmental samples. Appl Radiat Isot 2017; 130:34-42. [DOI: 10.1016/j.apradiso.2017.09.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 09/11/2017] [Accepted: 09/12/2017] [Indexed: 10/18/2022]
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Novković D, Đurašević M, Kandić A, Vukanac I, Šešlak B, Milošević Z. Coincidence summing corrections for point and volume 152 Eu sources. Appl Radiat Isot 2016; 107:138-144. [DOI: 10.1016/j.apradiso.2015.10.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Revised: 10/01/2015] [Accepted: 10/09/2015] [Indexed: 10/22/2022]
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6
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Xhixha G, Alberi M, Baldoncini M, Bode K, Bylyku E, Cfarku F, Callegari I, Hasani F, Landsberger S, Mantovani F, Rodriguez E, Shala F, Strati V, Kaçeli MX. Calibration of HPGe detectors using certified reference materials of natural origin. J Radioanal Nucl Chem 2015. [DOI: 10.1007/s10967-015-4360-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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7
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Haddad K. True coincidence summing correction determination for 214Bi principal gamma lines in NORM samples. J Radioanal Nucl Chem 2014. [DOI: 10.1007/s10967-014-3030-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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8
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Bounouira H, Embarch K, Amsil H, Bounakhla M, Blaauw M. Neutron flux characterization of the Moroccan Triga Mark II research reactor and validation of the k 0 standardization method of NAA using k 0-IAEA program. J Radioanal Nucl Chem 2014. [DOI: 10.1007/s10967-014-2963-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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9
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Boshkova T. Experimental assessment of the coincidence summing corrections in gamma-ray spectrometry of bulk samples. Appl Radiat Isot 2013; 83 Pt A:1-7. [PMID: 24212138 DOI: 10.1016/j.apradiso.2013.10.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2013] [Revised: 10/02/2013] [Accepted: 10/07/2013] [Indexed: 10/26/2022]
Abstract
This work presents an experimental approach for estimation of the true coincidence-summing (TCS) correction for volume sources on the basis of TCS dependence on the source-to-detector distance. Firstly, it is shown that the TCS dependence on the source-to-detector distance can be linearized for point source geometry. If this linear dependence is established then TCS correction for an arbitrary source-to-detector distance can be obtained. In the case of a volume source a representative parameter d(V) can be formulated as the distance at which the point-source summing effect is the same as the one for the volume-source. Then if the TCS dependence on the source-to-detector distance is established for the point-source case and the volume-source d(V)-value is known, the TCS correction corresponding to the volume-source measuring geometry can be estimated. Experimental method and results are presented in the work too.
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Affiliation(s)
- T Boshkova
- Faculty of Physics, St. Kliment Ohridsky, University of Sofia, 5 James Bourchier Blvd., 1164 Sofia, Bulgaria.
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Xhixha G, Bezzon GP, Broggini C, Buso GP, Caciolli A, Callegari I, De Bianchi S, Fiorentini G, Guastaldi E, Kaçeli Xhixha M, Mantovani F, Massa G, Menegazzo R, Mou L, Pasquini A, Alvarez CR, Shyti M. The worldwide NORM production and a fully automated gamma-ray spectrometer for their characterization. J Radioanal Nucl Chem 2012. [DOI: 10.1007/s10967-012-1791-1] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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11
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Lépy MC, Altzitzoglou T, Anagnostakis MJ, Capogni M, Ceccatelli A, De Felice P, Djurasevic M, Dryak P, Fazio A, Ferreux L, Giampaoli A, Han JB, Hurtado S, Kandic A, Kanisch G, Karfopoulos KL, Klemola S, Kovar P, Laubenstein M, Lee JH, Lee JM, Lee KB, Pierre S, Carvalhal G, Sima O, Tao CV, Thanh TT, Vidmar T, Vukanac I, Yang MJ. Intercomparison of methods for coincidence summing corrections in gamma-ray spectrometry--part II (volume sources). Appl Radiat Isot 2012; 70:2112-8. [PMID: 22445105 DOI: 10.1016/j.apradiso.2012.02.079] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2011] [Accepted: 02/20/2012] [Indexed: 11/16/2022]
Abstract
The second part of an intercomparison of the coincidence summing correction methods is presented. This exercise concerned three volume sources, filled with liquid radioactive solution. The same experimental spectra, decay scheme and photon emission intensities were used by all the participants. The results were expressed as coincidence summing corrective factors for several energies of (152)Eu and (134)Cs, and different source-to-detector distances. They are presented and discussed.
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Affiliation(s)
- M-C Lépy
- Laboratoire National Henri Becquerel (LNE-LNHB), CEA, LIST, F-91191 Gif-sur-Yvette cedex, France.
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Coincidence-summing correction equations in gamma-ray spectrometry with p-type HPGedetectors. Radiat Phys Chem Oxf Engl 1993 2011. [DOI: 10.1016/j.radphyschem.2010.09.014] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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13
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Lépy MC, Altzitzoglou T, Anagnostakis M, Arnold D, Capogni M, Ceccatelli A, De Felice P, Dersch R, Dryak P, Fazio A, Ferreux L, Guardati M, Han J, Hurtado S, Karfopoulos K, Klemola S, Kovar P, Lee K, Ocone R, Ott O, Sima O, Sudar S, Švec A, Van Tao C, Thanh TT, Vidmar T. Intercomparison of methods for coincidence summing corrections in gamma-ray spectrometry. Appl Radiat Isot 2010; 68:1407-12; discussion 1412. [DOI: 10.1016/j.apradiso.2010.01.012] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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14
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Rizzo S, Tomarchio E. Numerical expressions for the computation of coincidence-summing correction factors in γ-ray spectrometry with HPGe detectors. Appl Radiat Isot 2010; 68:555-60. [DOI: 10.1016/j.apradiso.2009.10.024] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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15
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Dowdall M, Selnæs ØG, Standring WJF, Nielsen SP, del Risco Norrlid L, Pálsson SE, Renvall T, Singh Sidhu R. An emergency response intercomparison exercise using a synthetically generated gamma-ray spectrum. J Radioanal Nucl Chem 2009. [DOI: 10.1007/s10967-009-0042-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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16
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Calibration of gamma-ray spectrometers coupled to Compton suppression and fast pneumatic systems for the k0-standardized NAA method. J Radioanal Nucl Chem 2008. [DOI: 10.1007/s10967-008-1204-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Abbas K, Simonelli F, D'Alberti F, Forte M, Stroosnijder MF. Reliability of two calculation codes for efficiency calibrations of HPGe detectors. Appl Radiat Isot 2002; 56:703-9. [PMID: 11993945 DOI: 10.1016/s0969-8043(01)00269-x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
This paper reports the reliability of efficiency calibrations for gamma-ray detectors using the calculation codes ANGLE and LabSOCS. For experimental verification, three HPGe detectors under various laboratory geometry configurations were used for this study. An overall comparison between experimental and calculated efficiency calibration curves is presented and comments on the various error sources affecting the final results are given. The deviations are generally below 10%, which could be acceptable for many applications.
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Affiliation(s)
- K Abbas
- Institute for Health and Consumer Protection, European Commission, Joint Research Centre, Cyclotron TP 500, Ispra, Italy.
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De FP, Angelini P, Fazio A, Capogni M. A national campaign for coincidence-summing correction in gamma-ray spectrometry. Appl Radiat Isot 2002; 56:117-23. [PMID: 11839003 DOI: 10.1016/s0969-8043(01)00176-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A national campaign was carried out in Italy for the application of coincidence-summing correction in gamma-ray spectrometry. Twelve laboratories, belonging to the National Environmental Radioactivity Surveillance Network, took part in the campaign. They are equipped with gamma-ray spectrometry systems based on p- and n-type HPGe detectors with different relative efficiencies. A simplified procedure was used for coincidence-summing correction. This procedure requires a single-photon, single-nuclide source to measure the peak-to-total efficiency ratio at just one photon energy value. All the laboratories were given a 137Cs standard source for total efficiency determination, and a 134Cs source in the same geometry whose activity they had to determine. The results show the usefulness of the procedure. The average deviation of all the laboratory results from the ENEA-INMRI reference value was reduced from -12% before correction to +1% after correction. The paper gives a description of the different organisational aspects of the campaign, reports the results obtained and draws conclusions in which the gain in measurement accuracy is evaluated in the light of the effort required for each participant to perform the correction.
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Affiliation(s)
- Felice Pierino De
- ENEA, Istituto Nazionale di Metrologia delle Radiazioni Ionizzanti, C.R. Casaccia, Rome, Italy.
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