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Gómez-Ros J, Bedogni R, Domingo C. Personal neutron dosimetry: State-of-the-art and new technologies. RADIAT MEAS 2023. [DOI: 10.1016/j.radmeas.2023.106908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Yukihara EG, Akselrod MS, Fomenko V, Harrison J, Million M, Assenmacher F, Stabilini A, Meier K. COMPARISON BETWEEN PADC AND FNTD NEUTRON DETECTOR SYSTEMS IN BLIND TESTS. RADIATION PROTECTION DOSIMETRY 2018; 180:225-229. [PMID: 29036622 DOI: 10.1093/rpd/ncx171] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 08/18/2017] [Indexed: 06/07/2023]
Abstract
The objective of this study was to compare a neutron dosimetry system based on polyallyl diglycol carbonate (PADC) detectors with a new system based on Al2O3:C,Mg fluorescence nuclear track detectors (FNTD). The irradiations, performed as part of an intercomparison organized by the Physikalisch-Technische Bundesanstalt (PTB), Germany, were on a PMMA phantom with 252Cf or 241Am-Be source, usually with the phantom surface perpendicular to the radiation beam (0° angle), and with Hp(10) values between 0.3 and 7 mSv. One 252Cf irradiation was performed at 30° angle, and one with an additional 1 mSv gamma irradiation. The results showed an agreement between the two techniques with an average and maximum difference between PADCs and FNTDs of 1.5 and 22%, respectively, if one compares only cases of doses >1 mSv. For one of the irradiation conditions with dose of 0.9 mSv, use of the incorrect calibration factor for the FNTD (252Cf instead of 241Am-Be) led to reported values ~×2 larger than the given doses, due to low statistics in the determination of the ratio between 6Li-doped glass and polyethylene neutron converters. Although the FNTD track analysis algorithm may need further development, the results presented here demonstrate the feasibility of the FNTD technology and indicate areas requiring improvements.
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Affiliation(s)
- E G Yukihara
- Department of Radiation Safety and Security, Paul Scherrer Institute, Villigen PSI, Switzerland
- Physics Department, Oklahoma State University, Stillwater, OK, USA
| | - M S Akselrod
- Landauer Inc., Crystal Growth Division, 7231/2 Eastgate St., Stillwater, OK, USA
| | - V Fomenko
- Landauer Inc., Crystal Growth Division, 7231/2 Eastgate St., Stillwater, OK, USA
| | - J Harrison
- Landauer Inc., Crystal Growth Division, 7231/2 Eastgate St., Stillwater, OK, USA
| | - M Million
- Landauer Europe, 9 rue Paul Dautier CS, Vélizy-Villacoublay, France
| | - F Assenmacher
- Department of Radiation Safety and Security, Paul Scherrer Institute, Villigen PSI, Switzerland
| | - A Stabilini
- Department of Radiation Safety and Security, Paul Scherrer Institute, Villigen PSI, Switzerland
- Politecnico di Milano, Dipartimento di Energia, via la Masa 34, Milan, Italy
| | - K Meier
- Department of Radiation Safety and Security, Paul Scherrer Institute, Villigen PSI, Switzerland
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Assenmacher F, Boschung M, Hohmann E, Mayer S. COMPARISON OF DIFFERENT PADC MATERIALS AND ETCHING CONDITIONS FOR FAST NEUTRON DOSIMETRY. RADIATION PROTECTION DOSIMETRY 2016; 170:162-167. [PMID: 26443546 DOI: 10.1093/rpd/ncv421] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Etched-track polyallyl diglycol carbonate (PADC) dosemeters have been in use at the Paul Scherrer Institute since 1998 in neutron dosimetry for individual monitoring. In the last years, the availability of PADC materials from different manufacturers has grown, and different etching conditions were proposed, with the intention to improve the quality and overall performance of PADC in individual neutron monitoring. The goal of the present study was to compare the performance of different PADC materials and to investigate the influence of different etching conditions on sensitivity to fast neutrons and lower detection limit. The comparison covers six different PADC materials and eight different etching conditions.
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Affiliation(s)
- F Assenmacher
- Division for Radiation Safety and Security, Paul Scherrer Institute (PSI), CH-5232 Villigen PSI, Switzerland
| | - M Boschung
- Division for Radiation Safety and Security, Paul Scherrer Institute (PSI), CH-5232 Villigen PSI, Switzerland
| | - E Hohmann
- Division for Radiation Safety and Security, Paul Scherrer Institute (PSI), CH-5232 Villigen PSI, Switzerland
| | - S Mayer
- Division for Radiation Safety and Security, Paul Scherrer Institute (PSI), CH-5232 Villigen PSI, Switzerland
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