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X-rays only when you want them: optimized pump–probe experiments using pseudo-single-bunch operation
Laser pump–X-ray probe experiments require control over the X-ray pulse pattern and timing. Here, the first use of pseudo-single-bunch mode at the Advanced Light Source in picosecond time-resolved X-ray absorption experiments on solutions and solids is reported. In this mode the X-ray repetition rat...
Autores principales: | , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
International Union of Crystallography
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4416684/ https://www.ncbi.nlm.nih.gov/pubmed/25931090 http://dx.doi.org/10.1107/S1600577515001770 |
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author | Hertlein, M. P. Scholl, A. Cordones, A. A. Lee, J. H. Engelhorn, K. Glover, T. E. Barbrel, B. Sun, C. Steier, C. Portmann, G. Robin, D. S. |
author_facet | Hertlein, M. P. Scholl, A. Cordones, A. A. Lee, J. H. Engelhorn, K. Glover, T. E. Barbrel, B. Sun, C. Steier, C. Portmann, G. Robin, D. S. |
author_sort | Hertlein, M. P. |
collection | PubMed |
description | Laser pump–X-ray probe experiments require control over the X-ray pulse pattern and timing. Here, the first use of pseudo-single-bunch mode at the Advanced Light Source in picosecond time-resolved X-ray absorption experiments on solutions and solids is reported. In this mode the X-ray repetition rate is fully adjustable from single shot to 500 kHz, allowing it to be matched to typical laser excitation pulse rates. Suppressing undesired X-ray pulses considerably reduces detector noise and improves signal to noise in time-resolved experiments. In addition, dose-induced sample damage is considerably reduced, easing experimental setup and allowing the investigation of less robust samples. Single-shot X-ray exposures of a streak camera detector using a conventional non-gated charge-coupled device (CCD) camera are also demonstrated. |
format | Online Article Text |
id | pubmed-4416684 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | International Union of Crystallography |
record_format | MEDLINE/PubMed |
spelling | pubmed-44166842015-05-20 X-rays only when you want them: optimized pump–probe experiments using pseudo-single-bunch operation Hertlein, M. P. Scholl, A. Cordones, A. A. Lee, J. H. Engelhorn, K. Glover, T. E. Barbrel, B. Sun, C. Steier, C. Portmann, G. Robin, D. S. J Synchrotron Radiat Research Papers Laser pump–X-ray probe experiments require control over the X-ray pulse pattern and timing. Here, the first use of pseudo-single-bunch mode at the Advanced Light Source in picosecond time-resolved X-ray absorption experiments on solutions and solids is reported. In this mode the X-ray repetition rate is fully adjustable from single shot to 500 kHz, allowing it to be matched to typical laser excitation pulse rates. Suppressing undesired X-ray pulses considerably reduces detector noise and improves signal to noise in time-resolved experiments. In addition, dose-induced sample damage is considerably reduced, easing experimental setup and allowing the investigation of less robust samples. Single-shot X-ray exposures of a streak camera detector using a conventional non-gated charge-coupled device (CCD) camera are also demonstrated. International Union of Crystallography 2015-04-02 /pmc/articles/PMC4416684/ /pubmed/25931090 http://dx.doi.org/10.1107/S1600577515001770 Text en © M. P. Hertlein et al. 2015 http://creativecommons.org/licenses/by/2.0/uk/ This is an open-access article distributed under the terms of the Creative Commons Attribution Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited. |
spellingShingle | Research Papers Hertlein, M. P. Scholl, A. Cordones, A. A. Lee, J. H. Engelhorn, K. Glover, T. E. Barbrel, B. Sun, C. Steier, C. Portmann, G. Robin, D. S. X-rays only when you want them: optimized pump–probe experiments using pseudo-single-bunch operation |
title | X-rays only when you want them: optimized pump–probe experiments using pseudo-single-bunch operation |
title_full | X-rays only when you want them: optimized pump–probe experiments using pseudo-single-bunch operation |
title_fullStr | X-rays only when you want them: optimized pump–probe experiments using pseudo-single-bunch operation |
title_full_unstemmed | X-rays only when you want them: optimized pump–probe experiments using pseudo-single-bunch operation |
title_short | X-rays only when you want them: optimized pump–probe experiments using pseudo-single-bunch operation |
title_sort | x-rays only when you want them: optimized pump–probe experiments using pseudo-single-bunch operation |
topic | Research Papers |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4416684/ https://www.ncbi.nlm.nih.gov/pubmed/25931090 http://dx.doi.org/10.1107/S1600577515001770 |
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