Characterization of cryo-cooled silicon crystal monochromators via measurement of flux versus power
A study on the thermal load of cryogenically cooled silicon in synchrotron double-crystal monochromators is presented, based on experimental data from four different beamlines at Diamond Light Source. Different amounts of power are deposited on the first monochromator crystal by varying the storage...
Saved in:
| Main Authors: | , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
International Union of Crystallography
2025-07-01
|
| Series: | Journal of Synchrotron Radiation |
| Subjects: | |
| Online Access: | https://journals.iucr.org/paper?S160057752500342X |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849416353803403264 |
|---|---|
| author | Lucia Alianelli Hossein Khosroabadi John Sutter Andrew C. Walters Pierpaolo Romano Kalotina Geraki Francesco Carlá Jonathan Rawle Sarah Barnett Kawal Sawhney |
| author_facet | Lucia Alianelli Hossein Khosroabadi John Sutter Andrew C. Walters Pierpaolo Romano Kalotina Geraki Francesco Carlá Jonathan Rawle Sarah Barnett Kawal Sawhney |
| author_sort | Lucia Alianelli |
| collection | DOAJ |
| description | A study on the thermal load of cryogenically cooled silicon in synchrotron double-crystal monochromators is presented, based on experimental data from four different beamlines at Diamond Light Source. Different amounts of power are deposited on the first monochromator crystal by varying the storage ring current. The resulting crystal deformation causes a decline in the diffraction efficiency when power and power density are above threshold values. The results are compatible with an analytical model of thermo-mechanical deformation. Acceptable monochromator heat load values are determined with this model, to ensure optimal function of the monochromator. This model, previously tested against finite element analyses, is now validated against measured data and it will be used as a tool for initial analysis of monochromator performance on upgraded photon sources. |
| format | Article |
| id | doaj-art-6aa295779fb844e2bdc0b545e6ae8b71 |
| institution | Kabale University |
| issn | 1600-5775 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | International Union of Crystallography |
| record_format | Article |
| series | Journal of Synchrotron Radiation |
| spelling | doaj-art-6aa295779fb844e2bdc0b545e6ae8b712025-08-20T03:33:13ZengInternational Union of CrystallographyJournal of Synchrotron Radiation1600-57752025-07-0132491992310.1107/S160057752500342Xtol5009Characterization of cryo-cooled silicon crystal monochromators via measurement of flux versus powerLucia Alianelli0Hossein Khosroabadi1John Sutter2Andrew C. Walters3Pierpaolo Romano4Kalotina Geraki5Francesco Carlá6Jonathan Rawle7Sarah Barnett8Kawal Sawhney9Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, United KingdomDiamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, United KingdomDiamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, United KingdomDiamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, United KingdomDiamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, United KingdomDiamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, United KingdomDiamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, United KingdomDiamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, United KingdomDiamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, United KingdomDiamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, United KingdomA study on the thermal load of cryogenically cooled silicon in synchrotron double-crystal monochromators is presented, based on experimental data from four different beamlines at Diamond Light Source. Different amounts of power are deposited on the first monochromator crystal by varying the storage ring current. The resulting crystal deformation causes a decline in the diffraction efficiency when power and power density are above threshold values. The results are compatible with an analytical model of thermo-mechanical deformation. Acceptable monochromator heat load values are determined with this model, to ensure optimal function of the monochromator. This model, previously tested against finite element analyses, is now validated against measured data and it will be used as a tool for initial analysis of monochromator performance on upgraded photon sources.https://journals.iucr.org/paper?S160057752500342Xsilicon crystal monochromatorindirect cryo-coolingfinite element analysisoptics thermal deformation |
| spellingShingle | Lucia Alianelli Hossein Khosroabadi John Sutter Andrew C. Walters Pierpaolo Romano Kalotina Geraki Francesco Carlá Jonathan Rawle Sarah Barnett Kawal Sawhney Characterization of cryo-cooled silicon crystal monochromators via measurement of flux versus power Journal of Synchrotron Radiation silicon crystal monochromator indirect cryo-cooling finite element analysis optics thermal deformation |
| title | Characterization of cryo-cooled silicon crystal monochromators via measurement of flux versus power |
| title_full | Characterization of cryo-cooled silicon crystal monochromators via measurement of flux versus power |
| title_fullStr | Characterization of cryo-cooled silicon crystal monochromators via measurement of flux versus power |
| title_full_unstemmed | Characterization of cryo-cooled silicon crystal monochromators via measurement of flux versus power |
| title_short | Characterization of cryo-cooled silicon crystal monochromators via measurement of flux versus power |
| title_sort | characterization of cryo cooled silicon crystal monochromators via measurement of flux versus power |
| topic | silicon crystal monochromator indirect cryo-cooling finite element analysis optics thermal deformation |
| url | https://journals.iucr.org/paper?S160057752500342X |
| work_keys_str_mv | AT luciaalianelli characterizationofcryocooledsiliconcrystalmonochromatorsviameasurementoffluxversuspower AT hosseinkhosroabadi characterizationofcryocooledsiliconcrystalmonochromatorsviameasurementoffluxversuspower AT johnsutter characterizationofcryocooledsiliconcrystalmonochromatorsviameasurementoffluxversuspower AT andrewcwalters characterizationofcryocooledsiliconcrystalmonochromatorsviameasurementoffluxversuspower AT pierpaoloromano characterizationofcryocooledsiliconcrystalmonochromatorsviameasurementoffluxversuspower AT kalotinageraki characterizationofcryocooledsiliconcrystalmonochromatorsviameasurementoffluxversuspower AT francescocarla characterizationofcryocooledsiliconcrystalmonochromatorsviameasurementoffluxversuspower AT jonathanrawle characterizationofcryocooledsiliconcrystalmonochromatorsviameasurementoffluxversuspower AT sarahbarnett characterizationofcryocooledsiliconcrystalmonochromatorsviameasurementoffluxversuspower AT kawalsawhney characterizationofcryocooledsiliconcrystalmonochromatorsviameasurementoffluxversuspower |