Synchrotron Mössbauer source: trade-off between intensity and linewidth
A synchrotron Mössbauer source (SMS) enables conventional (energy-domain) Mössbauer spectroscopy at synchrotron radiation facilities. In comparison with radioactive sources, SMS provides a beam of several micrometres in size, permitting studies of extremely small samples. The SMS linewidth can be na...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
International Union of Crystallography
2022-11-01
|
| Series: | Journal of Synchrotron Radiation |
| Subjects: | |
| Online Access: | http://scripts.iucr.org/cgi-bin/paper?S1600577522009316 |
| _version_ | 1818469990436700160 |
|---|---|
| author | Sergey Yaroslavtsev Aleksandr I. Chumakov |
| author_facet | Sergey Yaroslavtsev Aleksandr I. Chumakov |
| author_sort | Sergey Yaroslavtsev |
| collection | DOAJ |
| description | A synchrotron Mössbauer source (SMS) enables conventional (energy-domain) Mössbauer spectroscopy at synchrotron radiation facilities. In comparison with radioactive sources, SMS provides a beam of several micrometres in size, permitting studies of extremely small samples. The SMS linewidth can be narrowed at the expense of its intensity by varying the angular position and temperature of the key element of the SMS – an iron borate 57FeBO3 crystal. Here, in order to optimize the SMS performance, the angular and temperature dependencies of the SMS parameters have been studied and the optimal angular position and temperature of the crystal have been determined for highest intensity at specified source width. The results show that, when accepting broadening of the source width up to ∼6 natural widths, the intensity of the SMS at the European Synchrotron reaches more than 105 γ-quanta s−1. In the opposite extreme, the width of the source approaches the natural width with intensity decreasing to about 103 γ-quanta s−1. These changes of intensity up to two orders of magnitude take place over a temperature range of about 0.5°C. For all temperature and angular conditions, the instrumental function of the source was derived; we also analyzed the modification of its shape when passing from the `low-width' to `high-intensity' extremes of SMS operation. Finally, we estimated the influence of the temperature instability and mosaicity of the iron borate crystal on the SMS performance. |
| first_indexed | 2024-04-13T21:31:56Z |
| format | Article |
| id | doaj.art-caa864f4989b4cadb3d235b31e6e486f |
| institution | Directory Open Access Journal |
| issn | 1600-5775 |
| language | English |
| last_indexed | 2024-04-13T21:31:56Z |
| publishDate | 2022-11-01 |
| publisher | International Union of Crystallography |
| record_format | Article |
| series | Journal of Synchrotron Radiation |
| spelling | doaj.art-caa864f4989b4cadb3d235b31e6e486f2022-12-22T02:29:09ZengInternational Union of CrystallographyJournal of Synchrotron Radiation1600-57752022-11-012961329133710.1107/S1600577522009316gy5040Synchrotron Mössbauer source: trade-off between intensity and linewidthSergey Yaroslavtsev0Aleksandr I. Chumakov1ESRF – The European Synchrotron, CS40220, 38043 Grenoble Cedex 9, FranceESRF – The European Synchrotron, CS40220, 38043 Grenoble Cedex 9, FranceA synchrotron Mössbauer source (SMS) enables conventional (energy-domain) Mössbauer spectroscopy at synchrotron radiation facilities. In comparison with radioactive sources, SMS provides a beam of several micrometres in size, permitting studies of extremely small samples. The SMS linewidth can be narrowed at the expense of its intensity by varying the angular position and temperature of the key element of the SMS – an iron borate 57FeBO3 crystal. Here, in order to optimize the SMS performance, the angular and temperature dependencies of the SMS parameters have been studied and the optimal angular position and temperature of the crystal have been determined for highest intensity at specified source width. The results show that, when accepting broadening of the source width up to ∼6 natural widths, the intensity of the SMS at the European Synchrotron reaches more than 105 γ-quanta s−1. In the opposite extreme, the width of the source approaches the natural width with intensity decreasing to about 103 γ-quanta s−1. These changes of intensity up to two orders of magnitude take place over a temperature range of about 0.5°C. For all temperature and angular conditions, the instrumental function of the source was derived; we also analyzed the modification of its shape when passing from the `low-width' to `high-intensity' extremes of SMS operation. Finally, we estimated the influence of the temperature instability and mosaicity of the iron borate crystal on the SMS performance.http://scripts.iucr.org/cgi-bin/paper?S1600577522009316synchrotron mossbauer sourceiron borate febo3 |
| spellingShingle | Sergey Yaroslavtsev Aleksandr I. Chumakov Synchrotron Mössbauer source: trade-off between intensity and linewidth Journal of Synchrotron Radiation synchrotron mossbauer source iron borate febo3 |
| title | Synchrotron Mössbauer source: trade-off between intensity and linewidth |
| title_full | Synchrotron Mössbauer source: trade-off between intensity and linewidth |
| title_fullStr | Synchrotron Mössbauer source: trade-off between intensity and linewidth |
| title_full_unstemmed | Synchrotron Mössbauer source: trade-off between intensity and linewidth |
| title_short | Synchrotron Mössbauer source: trade-off between intensity and linewidth |
| title_sort | synchrotron mossbauer source trade off between intensity and linewidth |
| topic | synchrotron mossbauer source iron borate febo3 |
| url | http://scripts.iucr.org/cgi-bin/paper?S1600577522009316 |
| work_keys_str_mv | AT sergeyyaroslavtsev synchrotronmossbauersourcetradeoffbetweenintensityandlinewidth AT aleksandrichumakov synchrotronmossbauersourcetradeoffbetweenintensityandlinewidth |