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Maciak M, Domański S, Tulik P, Tymińska K, Gryziński MA. Unfolding of 239Pu-Be and 252Cf neutron energy spectra using passive multi-layer neutron spectrometer. RADIATION PROTECTION DOSIMETRY 2023; 199:1862-1866. [PMID: 37819282 PMCID: PMC10566541 DOI: 10.1093/rpd/ncad169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 04/14/2023] [Accepted: 05/15/2023] [Indexed: 10/13/2023]
Abstract
In the study, the passive multi-layer neutron spectrometer, based on thermoluminescence detectors, was tested in a calibration laboratory with 239Pu-Be and 252Cf isotopic sources. MCNP code was used for the calculation of the response functions for the neutron energy range from 1 meV to 100 MeV. It was also utilised for initial guess spectra calculations. Deconvolution was performed with MAXED and GRAVEL deconvolution codes resulting in the neutron spectra defined at the measuring point in the calibration laboratory.
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Affiliation(s)
- Maciej Maciak
- National Centre for Nuclear Research, Nuclear Facilities Operations Department, Radiological Metrology and Biomedical Physics Division, 7 Andrzeja Sołtana Street, 05-400 Otwock, Poland
- Faculty of Mechatronics, Institute of Metrology and Biomedical Engineering, Warsaw University of Technology, 8 św. Andrzeja Boboli Street, 02-525 Warsaw, Poland
| | - Szymon Domański
- National Centre for Nuclear Research, Nuclear Facilities Operations Department, Radiological Metrology and Biomedical Physics Division, 7 Andrzeja Sołtana Street, 05-400 Otwock, Poland
| | - Piotr Tulik
- National Centre for Nuclear Research, Nuclear Facilities Operations Department, Radiological Metrology and Biomedical Physics Division, 7 Andrzeja Sołtana Street, 05-400 Otwock, Poland
| | - Katarzyna Tymińska
- National Centre for Nuclear Research, Nuclear Facilities Operations Department, Radiological Metrology and Biomedical Physics Division, 7 Andrzeja Sołtana Street, 05-400 Otwock, Poland
| | - Michał A Gryziński
- National Centre for Nuclear Research, Nuclear Facilities Operations Department, Radiological Metrology and Biomedical Physics Division, 7 Andrzeja Sołtana Street, 05-400 Otwock, Poland
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Liang X, Zhao D, Jia W, Hei D, Cheng C. Characterization of thermal neutron distribution of an Am–Be neutron source setup by CdZnTe detector. Appl Radiat Isot 2023; 196:110778. [PMID: 36996536 DOI: 10.1016/j.apradiso.2023.110778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 02/07/2023] [Accepted: 03/14/2023] [Indexed: 03/17/2023]
Abstract
Owing to the developments in prompt gamma neutron activation analysis (PGNAA) and prompt gamma ray activation imaging (PGAI), it is necessary to develop an online thermal neutron distribution measurement method. The CdZnTe detector is considered as an alternative thermal neutron detector because of its high thermal neutron capture cross section. In this study, the thermal neutron field of an 241Am-Be neutron source was determined by CdZnTe detector. The intrinsic neutron detection efficiency of CdZnTe detector was calculated by using indium foil activation, and the value was 3.65%. Then the characteristics of neutron source were conducted with the calibrated CdZnTe detector. The thermal neutron fluxes in front of beam port were measured at several distances ranging from 0 cm up to 28 cm. Thermal neutron field at distances of 1 cm and 5 cm were also measured. The experimental data were then compared with Monte Carlo simulation. The results demonstrated that the simulated data agree well with experimental measurements.
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Söderström PA, Balabanski D, Ban R, Ciocan G, Cuciuc M, Dhal A, Fugaru V, Iancu V, Rotaru A, Şerban A, State A, Testov D, Turturică G, Vasilca V. Design and construction of a 9 MeV γ-ray source based on capture of moderated plutonium-beryllium neutrons in nickel. Appl Radiat Isot 2022; 191:110559. [DOI: 10.1016/j.apradiso.2022.110559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 10/13/2022] [Accepted: 11/07/2022] [Indexed: 11/13/2022]
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Lelasseux V, Söderström PA, Aogaki S, Burdonov K, Cerchez M, Chen SN, Dorard S, Fazzini A, Gugiu M, Pikuz S, Rotaru F, Willi O, Negoita F, Fuchs J. Design and commissioning of a neutron counter adapted to high-intensity laser matter interactions. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2021; 92:113303. [PMID: 34852516 DOI: 10.1063/5.0057828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 10/06/2021] [Indexed: 06/13/2023]
Abstract
The advent of multi-PW laser facilities world-wide opens new opportunities for nuclear physics. With this perspective, we developed a neutron counter taking into account the specifics of a high-intensity laser environment. Using GEANT4 simulations and prototype testings, we report on the design of a modular neutron counter based on boron-10 enriched scintillators and a high-density polyethylene moderator. This detector has been calibrated using a plutonium-beryllium neutron source and commissioned during an actual neutron-producing laser experiment at the LULI2000 facility (France). An overall efficiency of 4.37(59)% has been demonstrated during calibration with a recovery time of a few hundred microseconds after laser-plasma interaction.
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Affiliation(s)
- V Lelasseux
- LULI-CNRS, CEA, UPMC Univ. Paris 06: Sorbonne Université, Ecole Polytechnique, Institut Polytechnique de Paris, F-91128 Palaiseau Cedex, France
| | - P-A Söderström
- Extreme Light Infrastructure-Nuclear Physics (ELI-NP)/Horia Hulubei National Institute for Physics and Nuclear Engineering (IFIN-HH), Str. Reactorului 30, 077125 Bucharest-Măgurele, Romania
| | - S Aogaki
- Extreme Light Infrastructure-Nuclear Physics (ELI-NP)/Horia Hulubei National Institute for Physics and Nuclear Engineering (IFIN-HH), Str. Reactorului 30, 077125 Bucharest-Măgurele, Romania
| | - K Burdonov
- LULI-CNRS, CEA, UPMC Univ. Paris 06: Sorbonne Université, Ecole Polytechnique, Institut Polytechnique de Paris, F-91128 Palaiseau Cedex, France
| | - M Cerchez
- Heinrich-Heine-Universität Düsseldorf\HHU Institute of Laser and Plasma Physics, Universitätsstr. 1, 40225 Düsseldorf, Germany
| | - S N Chen
- Extreme Light Infrastructure-Nuclear Physics (ELI-NP)/Horia Hulubei National Institute for Physics and Nuclear Engineering (IFIN-HH), Str. Reactorului 30, 077125 Bucharest-Măgurele, Romania
| | - S Dorard
- LULI-CNRS, CEA, UPMC Univ. Paris 06: Sorbonne Université, Ecole Polytechnique, Institut Polytechnique de Paris, F-91128 Palaiseau Cedex, France
| | - A Fazzini
- LULI-CNRS, CEA, UPMC Univ. Paris 06: Sorbonne Université, Ecole Polytechnique, Institut Polytechnique de Paris, F-91128 Palaiseau Cedex, France
| | - M Gugiu
- Extreme Light Infrastructure-Nuclear Physics (ELI-NP)/Horia Hulubei National Institute for Physics and Nuclear Engineering (IFIN-HH), Str. Reactorului 30, 077125 Bucharest-Măgurele, Romania
| | - S Pikuz
- Joint Institute for High Temperatures RAS, 13-2 Izhorskaya St., Moscow 125412, Russia
| | - F Rotaru
- Extreme Light Infrastructure-Nuclear Physics (ELI-NP)/Horia Hulubei National Institute for Physics and Nuclear Engineering (IFIN-HH), Str. Reactorului 30, 077125 Bucharest-Măgurele, Romania
| | - O Willi
- Heinrich-Heine-Universität Düsseldorf\HHU Institute of Laser and Plasma Physics, Universitätsstr. 1, 40225 Düsseldorf, Germany
| | - F Negoita
- Extreme Light Infrastructure-Nuclear Physics (ELI-NP)/Horia Hulubei National Institute for Physics and Nuclear Engineering (IFIN-HH), Str. Reactorului 30, 077125 Bucharest-Măgurele, Romania
| | - J Fuchs
- LULI-CNRS, CEA, UPMC Univ. Paris 06: Sorbonne Université, Ecole Polytechnique, Institut Polytechnique de Paris, F-91128 Palaiseau Cedex, France
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