Multi-Grid detector for neutron spectroscopy : Results obtained on time-of-flight spectrometer CNCS
| العنوان: | Multi-Grid detector for neutron spectroscopy : Results obtained on time-of-flight spectrometer CNCS |
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| المؤلفون: | S. M. Everett, I. Lopez-Higuera, F. Issa, Jens Birch, Anton Khaplanov, Kenneth W. Herwig, J.-F. Clergeau, R. Bebb, Pascale P. Deen, I. Iruretagoiena, Carina Höglund, F. Piscitelli, Jens Jensen, Bruno Guerard, Oliver Kirstein, I. Stefanescu, Georg Ehlers, Susann Schmidt, Richard Hall-Wilton, P. Van Esch, Linda Robinson, J. C. Buffet, T. Bryś, M. Anastasopoulos, Lars Hultman, K. Berry |
| المساهمون: | Institut Laue-Langevin ( ILL ), ILL, Institut Laue-Langevin (ILL) |
| المصدر: | JINST JINST, 2017, 12 (04), pp.P04030. 〈10.1088/1748-0221/12/04/P04030〉 JINST, 2017, 12 (04), pp.P04030. ⟨10.1088/1748-0221/12/04/P04030⟩ 'Journal of Instrumentation ', vol: 12, pages: P04030-1-P04030-31 (2017) Journal of Instrumentation |
| بيانات النشر: | Mittuniversitetet, Avdelningen för elektronikkonstruktion, 2017. |
| سنة النشر: | 2017 |
| مصطلحات موضوعية: | fast neutrons), Physics - Instrumentation and Detectors, Materials science, Instrumentation for neutron sources, Physics::Instrumentation and Detectors, FOS: Physical sciences, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Neutron scattering, Accelerator Physics and Instrumentation, 01 natural sciences, thermal, Chopper, Gaseous detectors, Optics, Neutron detectors (cold, Neutron flux, 0103 physical sciences, Neutron, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Nuclear Experiment (nucl-ex), [ PHYS.NEXP ] Physics [physics]/Nuclear Experiment [nucl-ex], 010306 general physics, Nuclear Experiment, [ PHYS.PHYS.PHYS-INS-DET ] Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Instrumentation, Mathematical Physics, Spectrometer, 010308 nuclear & particles physics, business.industry, Detector, Acceleratorfysik och instrumentering, Instrumentation and Detectors (physics.ins-det), Neutron spectroscopy, Time of flight, business |
| الوصف: | The Multi-Grid detector technology has evolved from the proof-of-principle and characterisation stages. Here we report on the performance of the Multi-Grid detector, the MG.CNCS prototype, which has been installed and tested at the Cold Neutron Chopper Spectrometer, CNCS at SNS. This has allowed a side-by-side comparison to the performance of $^3$He detectors on an operational instrument. The demonstrator has an active area of 0.2 m$^2$. It is specifically tailored to the specifications of CNCS. The detector was installed in June 2016 and has operated since then, collecting neutron scattering data in parallel to the He-3 detectors of CNCS. In this paper, we present a comprehensive analysis of this data, in particular on instrument energy resolution, rate capability, background and relative efficiency. Stability, gamma-ray and fast neutron sensitivity have also been investigated. The effect of scattering in the detector components has been measured and provides input to comparison for Monte Carlo simulations. All data is presented in comparison to that measured by the $^3$He detectors simultaneously, showing that all features recorded by one detector are also recorded by the other. The energy resolution matches closely. We find that the Multi-Grid is able to match the data collected by $^3$He, and see an indication of a considerable advantage in the count rate capability. Based on these results, we are confident that the Multi-Grid detector will be capable of producing high quality scientific data on chopper spectrometers utilising the unprecedented neutron flux of the ESS. submitted to JINST |
| وصف الملف: | application/pdf |
| اللغة: | English |
| تدمد: | 1742-6596 1748-0221 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::265012b7a1b47791fe4e7934fab6391b http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-30963 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....265012b7a1b47791fe4e7934fab6391b |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 17426596 17480221 |
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