Backis, A. ; Khaplanov, A. ; Al Jebali, R. ; Ammer, R. ; Apostolidis, I. ; Birch, J. ; Lai, C. C. ; Deen, P. P. ; Etxegarai, M. ; Ruette, N. de ; Freita Ramos, J. ; Förster, D. F. ; Haettner, E. ; Hall-Wilton, R. ; Hamilton, D. ; Höglund, C. ; Kadletz, P. M. ; Kanaki, K. ; Karnickis, E. ; Kirstein, O. ; Kolya, S. ; Kraujalyte, Z. ; Laloni, A. ; Livingston, K. ; Löhman, O. ; Maulerova, V. ; Mauritzon, N. ; Müller, F. ; Lopez Higuera, I. ; Richter, T. ; Robinson, L. ; Roth, R. ; Shetty, M. ; Taylor, J. ; Woracek, R. ; Xiong, W. (2020)
Time- and energy-resolved effects in the boron-10 based multi-grid and helium-3 based thermal neutron detectors.
In: Measurement Science and Technology, 32 (3)
doi: 10.1088/1361-6501/abc63e
Artikel, Bibliographie
Dies ist die neueste Version dieses Eintrags.
Kurzbeschreibung (Abstract)
The boron-10 based multi-grid detector is being developed as an alternative to helium-3 based neutron detectors. At the European Spallation Source, the detector will be used for time-of-flight neutron spectroscopy at cold to thermal neutron energies. The objective of this work is to investigate fine time- and energy-resolved effects of the Multi-Grid detector, down to a few µeV, while comparing it to the performance of a typical helium-3 tube. Furthermore, it is to characterize differences between the detector technologies in terms of internal scattering, as well as the time reconstruction of ∼ µs short neutron pulses. The data were taken at the Helmholtz Zentrum Berlin, where the Multi-Grid detector and a helium-3 tube were installed at the ESS test beamline, V20. Using a Fermi-chopper, the neutron beam of the reactor was chopped into a few tens of µs wide pulses before reaching the detector, located a few tens of cm downstream. The data of the measurements show an agreement between the derived and calculated neutron detection efficiency curve. The data also provide fine details on the effect of internal scattering, and how it can be reduced. For the first time, the chopper resolution was comparable to the timing resolution of the Multi-Grid detector. This allowed a detailed study of time- and energy resolved effects, as well as a comparison with a typical helium-3 tube.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2020 |
| Autor(en): | Backis, A. ; Khaplanov, A. ; Al Jebali, R. ; Ammer, R. ; Apostolidis, I. ; Birch, J. ; Lai, C. C. ; Deen, P. P. ; Etxegarai, M. ; Ruette, N. de ; Freita Ramos, J. ; Förster, D. F. ; Haettner, E. ; Hall-Wilton, R. ; Hamilton, D. ; Höglund, C. ; Kadletz, P. M. ; Kanaki, K. ; Karnickis, E. ; Kirstein, O. ; Kolya, S. ; Kraujalyte, Z. ; Laloni, A. ; Livingston, K. ; Löhman, O. ; Maulerova, V. ; Mauritzon, N. ; Müller, F. ; Lopez Higuera, I. ; Richter, T. ; Robinson, L. ; Roth, R. ; Shetty, M. ; Taylor, J. ; Woracek, R. ; Xiong, W. |
| Art des Eintrags: | Bibliographie |
| Titel: | Time- and energy-resolved effects in the boron-10 based multi-grid and helium-3 based thermal neutron detectors |
| Sprache: | Englisch |
| Publikationsjahr: | 2020 |
| Ort: | Bristol |
| Verlag: | IOP Publishing |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Measurement Science and Technology |
| Jahrgang/Volume einer Zeitschrift: | 32 |
| (Heft-)Nummer: | 3 |
| Kollation: | 22 Seiten |
| DOI: | 10.1088/1361-6501/abc63e |
| Zugehörige Links: | |
| Kurzbeschreibung (Abstract): | The boron-10 based multi-grid detector is being developed as an alternative to helium-3 based neutron detectors. At the European Spallation Source, the detector will be used for time-of-flight neutron spectroscopy at cold to thermal neutron energies. The objective of this work is to investigate fine time- and energy-resolved effects of the Multi-Grid detector, down to a few µeV, while comparing it to the performance of a typical helium-3 tube. Furthermore, it is to characterize differences between the detector technologies in terms of internal scattering, as well as the time reconstruction of ∼ µs short neutron pulses. The data were taken at the Helmholtz Zentrum Berlin, where the Multi-Grid detector and a helium-3 tube were installed at the ESS test beamline, V20. Using a Fermi-chopper, the neutron beam of the reactor was chopped into a few tens of µs wide pulses before reaching the detector, located a few tens of cm downstream. The data of the measurements show an agreement between the derived and calculated neutron detection efficiency curve. The data also provide fine details on the effect of internal scattering, and how it can be reduced. For the first time, the chopper resolution was comparable to the timing resolution of the Multi-Grid detector. This allowed a detailed study of time- and energy resolved effects, as well as a comparison with a typical helium-3 tube. |
| Freie Schlagworte: | neutron detectors, gaseous detectors, boron-10, multi-grid detector, helium-3, time resolution |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 530 Physik |
| Fachbereich(e)/-gebiet(e): | 05 Fachbereich Physik 05 Fachbereich Physik > Institut für Physik Kondensierter Materie (IPKM) |
| Hinterlegungsdatum: | 28 Mär 2024 08:41 |
| Letzte Änderung: | 28 Mär 2024 08:41 |
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| Suche nach Titel in: | TUfind oder in Google |
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Time- and energy-resolved effects in the boron-10 based multi-grid and helium-3 based thermal neutron detectors. (deposited 25 Mär 2024 10:26)
- Time- and energy-resolved effects in the boron-10 based multi-grid and helium-3 based thermal neutron detectors. (deposited 28 Mär 2024 08:41) [Gegenwärtig angezeigt]
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