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Selivanova A, Hůlka J, Seifert D, Hlaváč V, Krsek P, Smutný V, Wagner L, Voltr J, Rubovič P, Češpírová I, Gryc L. The use of a CZT detector with robotic systems. Appl Radiat Isot 2020; 166:109395. [PMID: 32919236 DOI: 10.1016/j.apradiso.2020.109395] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 07/28/2020] [Accepted: 08/18/2020] [Indexed: 11/15/2022]
Abstract
This work is focused on the use of a CZT detector for a radiation mapping with an industrial robotic arm. Measurements were carried out within the RadioRoSo experiment (Radioactive Waste Robotic Sorter), under the umbrella of EU FP7 project ECHORD++. In tests with a dual-arm robot and standard point sources of 137Cs and 60Co, a Magnox waste was mimicked. Thereafter, for relevant measurement geometries and selected shielding materials, full energy peak efficiencies were calculated using the MCNP transport code. Simulated FEP efficiency values were used for minimum detectable activity assessments for expected measurement conditions. Obtained results would be also applicable for cases of shielded lost/orphan point-like sources.
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Affiliation(s)
- Anna Selivanova
- National Radiation Protection Institute, Bartoškova 1450/28, 140 00, Prague, Czech Republic.
| | - Jiří Hůlka
- National Radiation Protection Institute, Bartoškova 1450/28, 140 00, Prague, Czech Republic.
| | - Daniel Seifert
- Czech Institute of Informatics, Robotics and Cybernetics, Czech Technical University in Prague - CIIRC CTU, Jugoslávských Partyzánů 1580/3, 160 00, Prague, Czech Republic.
| | - Václav Hlaváč
- Czech Institute of Informatics, Robotics and Cybernetics, Czech Technical University in Prague - CIIRC CTU, Jugoslávských Partyzánů 1580/3, 160 00, Prague, Czech Republic.
| | - Pavel Krsek
- Czech Institute of Informatics, Robotics and Cybernetics, Czech Technical University in Prague - CIIRC CTU, Jugoslávských Partyzánů 1580/3, 160 00, Prague, Czech Republic.
| | - Vladimír Smutný
- Czech Institute of Informatics, Robotics and Cybernetics, Czech Technical University in Prague - CIIRC CTU, Jugoslávských Partyzánů 1580/3, 160 00, Prague, Czech Republic.
| | - Libor Wagner
- Czech Institute of Informatics, Robotics and Cybernetics, Czech Technical University in Prague - CIIRC CTU, Jugoslávských Partyzánů 1580/3, 160 00, Prague, Czech Republic.
| | - Josef Voltr
- National Radiation Protection Institute, Bartoškova 1450/28, 140 00, Prague, Czech Republic.
| | - Peter Rubovič
- National Radiation Protection Institute, Bartoškova 1450/28, 140 00, Prague, Czech Republic; Institute of Experimental and Applied Physics, Czech Technical University in Prague - IEAP CTU, Husova 240/5, 110 00, Prague, Czech Republic.
| | - Irena Češpírová
- National Radiation Protection Institute, Bartoškova 1450/28, 140 00, Prague, Czech Republic.
| | - Lubomír Gryc
- National Radiation Protection Institute, Bartoškova 1450/28, 140 00, Prague, Czech Republic.
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Androulakaki EG, Kokkoris M, Skordis E, Fatsea E, Patiris DL, Tsabaris C, Vlastou R. Implementation of FLUKA for γ-ray applications in the marine environment. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 2016; 164:253-257. [PMID: 27522329 DOI: 10.1016/j.jenvrad.2016.08.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Accepted: 08/05/2016] [Indexed: 06/06/2023]
Abstract
The FLUKA code was implemented to simulate pulse-height spectra of a NaI(Tl) detector (excluding its resolution), considering radioactive sources of naturally occurring and artificial radionuclides present in the marine environment. For this purpose, a user-defined routine was developed for the proper simulation of the emitted γ-rays. The results were compared with simulations performed using the MCNP-CP code. The comparison of the recorded counts in the full-energy peaks, for the high intensity (emission probability >15%) emitted γ-rays for each radionuclide, yielded a satisfactory agreement (calculated ratios from 0.93 ± 0.05 to 1.07 ± 0.02) in all the studied cases.
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Affiliation(s)
- E G Androulakaki
- National Technical University of Athens, Department of Physics, Zografou Campus, GR-15780, Athens, Greece; Hellenic Centre for Marine Research, Institute of Oceanography, P.O. Box 712, GR-19013, Anavyssos, Greece.
| | - M Kokkoris
- National Technical University of Athens, Department of Physics, Zografou Campus, GR-15780, Athens, Greece
| | - E Skordis
- European Organization for Nuclear Research (CERN), Geneva, Switzerland; University of Liverpool, Merseyside L69 3BX, United Kingdom
| | - E Fatsea
- National Technical University of Athens, Department of Physics, Zografou Campus, GR-15780, Athens, Greece
| | - D L Patiris
- Hellenic Centre for Marine Research, Institute of Oceanography, P.O. Box 712, GR-19013, Anavyssos, Greece
| | - C Tsabaris
- Hellenic Centre for Marine Research, Institute of Oceanography, P.O. Box 712, GR-19013, Anavyssos, Greece
| | - R Vlastou
- National Technical University of Athens, Department of Physics, Zografou Campus, GR-15780, Athens, Greece
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Androulakaki E, Kokkoris M, Tsabaris C, Eleftheriou G, Patiris D, Pappa F, Vlastou R. In situ γ-ray spectrometry in the marine environment using full spectrum analysis for natural radionuclides. Appl Radiat Isot 2016; 114:76-86. [DOI: 10.1016/j.apradiso.2016.05.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Revised: 05/09/2016] [Accepted: 05/10/2016] [Indexed: 10/21/2022]
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Bonheure G, Van Wassenhove G, Hult M, González de Orduña R, Strivay D, Vermaercke P, Delvigne T, Chene G, Delhalle R, Huber A, Schweer B, Esser G, Biel W, Neubauer O. Investigation of advanced materials for fusion alpha particle diagnostics. FUSION ENGINEERING AND DESIGN 2013. [DOI: 10.1016/j.fusengdes.2013.01.029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Flynn A, Boardman D, Reinhard MI. The validation of synthetic spectra used in the performance evaluation of radionuclide identifiers. Appl Radiat Isot 2013; 77:145-52. [PMID: 23619192 DOI: 10.1016/j.apradiso.2013.03.089] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2012] [Revised: 03/14/2013] [Accepted: 03/15/2013] [Indexed: 11/29/2022]
Abstract
This work has evaluated synthetic gamma-ray spectra created by the RASE sampler using experimental data. The RASE sampler resamples experimental data to create large data libraries which are subsequently available for use in evaluation of radionuclide identification algorithms. A statistical evaluation of the synthetic energy bins has shown the variation to follow a Poisson distribution identical to experimental data. The minimum amount of statistics required in each base spectrum to ensure the subsequent use of the base spectrum in the generation of statistically robust synthetic data was determined. A requirement that the simulated acquisition time of the synthetic spectra was not more than 4% of the acquisition time of the base spectrum was also determined. Further validation of RASE was undertaken using two different radionuclide identification algorithms.
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Affiliation(s)
- A Flynn
- ANSTO, Locked Bag 2001, Kirrawee DC, NSW 2232, Australia.
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