SHERPA: A Spectrometer with High Energy Resolution and Polarisation Analysis
SHERPA is a proposed quasielastic neutron spectrometer with polarisation analysis, intended to replace the ageing Iris instrument at the ISIS neutron and muon source. In this paper we present a concept of the instrument along with Monte-Carlo simulations and analysis of possible instrument location....
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2022-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2022/16/epjconf_qens-wins2022_02004.pdf |
| _version_ | 1811308811271536640 |
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| author | Nemkovski Kirill Bewley Robert García Sakai Victoria Nilsen Gøran Jan Perrichon Adrien Silverwood Ian |
| author_facet | Nemkovski Kirill Bewley Robert García Sakai Victoria Nilsen Gøran Jan Perrichon Adrien Silverwood Ian |
| author_sort | Nemkovski Kirill |
| collection | DOAJ |
| description | SHERPA is a proposed quasielastic neutron spectrometer with polarisation analysis, intended to replace the ageing Iris instrument at the ISIS neutron and muon source. In this paper we present a concept of the instrument along with Monte-Carlo simulations and analysis of possible instrument location. We expect greatly increased count rate compared to Iris (expected from 49 to 660 × Iris) in unpolarised mode and dedicated polarisation analysis capabilities at a more modest count rate increase (~5-70 × Iris). This huge gain in the count rate would be achieved from the combination of three factors: modern neutron guide with high-m coating, and prismatic effect and larger solid angle coverage at the energy analyser. Such an instrument would be the first of its kind and has incredible potential to revolutionise quasielastic neutron scattering technique through the separation of the coherent and incoherent scattering contributions. |
| first_indexed | 2024-04-13T09:30:56Z |
| format | Article |
| id | doaj.art-2f532f24060846089b6e613156649678 |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-04-13T09:30:56Z |
| publishDate | 2022-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-2f532f24060846089b6e6131566496782022-12-22T02:52:15ZengEDP SciencesEPJ Web of Conferences2100-014X2022-01-012720200410.1051/epjconf/202227202004epjconf_qens-wins2022_02004SHERPA: A Spectrometer with High Energy Resolution and Polarisation AnalysisNemkovski Kirill0Bewley Robert1García Sakai Victoria2Nilsen Gøran Jan3Perrichon Adrien4Silverwood Ian5ISIS Neutron and Muon Source, STFC Rutherford Appleton Laboratory, Harwell Science and Innovation CampusISIS Neutron and Muon Source, STFC Rutherford Appleton Laboratory, Harwell Science and Innovation CampusISIS Neutron and Muon Source, STFC Rutherford Appleton Laboratory, Harwell Science and Innovation CampusISIS Neutron and Muon Source, STFC Rutherford Appleton Laboratory, Harwell Science and Innovation CampusISIS Neutron and Muon Source, STFC Rutherford Appleton Laboratory, Harwell Science and Innovation CampusISIS Neutron and Muon Source, STFC Rutherford Appleton Laboratory, Harwell Science and Innovation CampusSHERPA is a proposed quasielastic neutron spectrometer with polarisation analysis, intended to replace the ageing Iris instrument at the ISIS neutron and muon source. In this paper we present a concept of the instrument along with Monte-Carlo simulations and analysis of possible instrument location. We expect greatly increased count rate compared to Iris (expected from 49 to 660 × Iris) in unpolarised mode and dedicated polarisation analysis capabilities at a more modest count rate increase (~5-70 × Iris). This huge gain in the count rate would be achieved from the combination of three factors: modern neutron guide with high-m coating, and prismatic effect and larger solid angle coverage at the energy analyser. Such an instrument would be the first of its kind and has incredible potential to revolutionise quasielastic neutron scattering technique through the separation of the coherent and incoherent scattering contributions.https://www.epj-conferences.org/articles/epjconf/pdf/2022/16/epjconf_qens-wins2022_02004.pdf |
| spellingShingle | Nemkovski Kirill Bewley Robert García Sakai Victoria Nilsen Gøran Jan Perrichon Adrien Silverwood Ian SHERPA: A Spectrometer with High Energy Resolution and Polarisation Analysis EPJ Web of Conferences |
| title | SHERPA: A Spectrometer with High Energy Resolution and Polarisation Analysis |
| title_full | SHERPA: A Spectrometer with High Energy Resolution and Polarisation Analysis |
| title_fullStr | SHERPA: A Spectrometer with High Energy Resolution and Polarisation Analysis |
| title_full_unstemmed | SHERPA: A Spectrometer with High Energy Resolution and Polarisation Analysis |
| title_short | SHERPA: A Spectrometer with High Energy Resolution and Polarisation Analysis |
| title_sort | sherpa a spectrometer with high energy resolution and polarisation analysis |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2022/16/epjconf_qens-wins2022_02004.pdf |
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