Operation of a single-photon-counting x-ray charge-coupled device camera spectrometer in a petawatt environment
The use of a single-photon-counting x-ray charge-coupled device (CCD) camera as an x-ray spectrometer is a well-established technique in ultrashort-pulse laser experiments. In single-photon-counting mode, the pixel value of each readout pixel is proportional to the energy deposited from the incident...
| Main Authors: | , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2004
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| _version_ | 1826307051975868416 |
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| author | Stoeckl, C Theobald, W Sangster, T Key, M Patel, P Zhang, B Clarke, R Karsch, S Norreys, P |
| author_facet | Stoeckl, C Theobald, W Sangster, T Key, M Patel, P Zhang, B Clarke, R Karsch, S Norreys, P |
| author_sort | Stoeckl, C |
| collection | OXFORD |
| description | The use of a single-photon-counting x-ray charge-coupled device (CCD) camera as an x-ray spectrometer is a well-established technique in ultrashort-pulse laser experiments. In single-photon-counting mode, the pixel value of each readout pixel is proportional to the energy deposited from the incident x-ray photon. For photons below 100 keV, a significant fraction of the events deposits all the energy in a single pixel. A histogram of the pixel readout values gives a good approximation of the x-ray spectrum. This technique requires almost no alignment, but it is very sensitive to signal-to-background issues, especially in a high-energy petawatt environment. Shielding the direct line of sight to the target was not sufficient to obtain a high-quality spectrum, for the experiments reported here the CCD camera had to be shielded from all sides with up to 10 cm of lead. © 2004 American Institute of Physics. |
| first_indexed | 2024-03-07T06:57:12Z |
| format | Journal article |
| id | oxford-uuid:fe85c1e8-b7cf-4230-b815-0467b888fa26 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T06:57:12Z |
| publishDate | 2004 |
| record_format | dspace |
| spelling | oxford-uuid:fe85c1e8-b7cf-4230-b815-0467b888fa262022-03-27T13:37:21ZOperation of a single-photon-counting x-ray charge-coupled device camera spectrometer in a petawatt environmentJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:fe85c1e8-b7cf-4230-b815-0467b888fa26EnglishSymplectic Elements at Oxford2004Stoeckl, CTheobald, WSangster, TKey, MPatel, PZhang, BClarke, RKarsch, SNorreys, PThe use of a single-photon-counting x-ray charge-coupled device (CCD) camera as an x-ray spectrometer is a well-established technique in ultrashort-pulse laser experiments. In single-photon-counting mode, the pixel value of each readout pixel is proportional to the energy deposited from the incident x-ray photon. For photons below 100 keV, a significant fraction of the events deposits all the energy in a single pixel. A histogram of the pixel readout values gives a good approximation of the x-ray spectrum. This technique requires almost no alignment, but it is very sensitive to signal-to-background issues, especially in a high-energy petawatt environment. Shielding the direct line of sight to the target was not sufficient to obtain a high-quality spectrum, for the experiments reported here the CCD camera had to be shielded from all sides with up to 10 cm of lead. © 2004 American Institute of Physics. |
| spellingShingle | Stoeckl, C Theobald, W Sangster, T Key, M Patel, P Zhang, B Clarke, R Karsch, S Norreys, P Operation of a single-photon-counting x-ray charge-coupled device camera spectrometer in a petawatt environment |
| title | Operation of a single-photon-counting x-ray charge-coupled device camera spectrometer in a petawatt environment |
| title_full | Operation of a single-photon-counting x-ray charge-coupled device camera spectrometer in a petawatt environment |
| title_fullStr | Operation of a single-photon-counting x-ray charge-coupled device camera spectrometer in a petawatt environment |
| title_full_unstemmed | Operation of a single-photon-counting x-ray charge-coupled device camera spectrometer in a petawatt environment |
| title_short | Operation of a single-photon-counting x-ray charge-coupled device camera spectrometer in a petawatt environment |
| title_sort | operation of a single photon counting x ray charge coupled device camera spectrometer in a petawatt environment |
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