X-ray probe development for collective scattering measurements in dense plasmas
X-ray spectra and conversion efficiencies of the laser-produced chlorine Ly- α and K- α line radiation have been investigated to develop X-ray probes for the collective scattering regime. The Ly- α radiation was produced by either smoothed or un-smoothed laser beams with nanosecond-long laser pulses...
| Главные авторы: | , , , , |
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| Формат: | Journal article |
| Язык: | English |
| Опубликовано: |
2006
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| _version_ | 1826299135884525568 |
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| author | Urry, M Gregori, G Landen, O Pak, A Glenzer, S |
| author_facet | Urry, M Gregori, G Landen, O Pak, A Glenzer, S |
| author_sort | Urry, M |
| collection | OXFORD |
| description | X-ray spectra and conversion efficiencies of the laser-produced chlorine Ly- α and K- α line radiation have been investigated to develop X-ray probes for the collective scattering regime. The Ly- α radiation was produced by either smoothed or un-smoothed laser beams with nanosecond-long laser pulses yielding high conversion efficiencies of up to 0.3% sufficient for X-ray scattering measurements. However, the time-integrated measurements show a significant dielectronic satellite emission on the red wing of the primary Ly- α line which must be avoided to resolve the plasmon feature in the scattering spectra. We find no red wing emission features for ultra-short pulse laser produced K-α radiation. The bandwidth of ΔE/E = 2 × 10-3 is suited for collective scattering, but the conversion efficiency falls short of the high values achieved for the Ly-α. These findings indicate that present laser-produced X-ray sources will restrict the choice of detectors and plasma conditions for collective X-ray scattering from dense plasmas. |
| first_indexed | 2024-03-07T04:57:19Z |
| format | Journal article |
| id | oxford-uuid:d70c926c-f85c-4849-814d-f80670ecf5b7 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T04:57:19Z |
| publishDate | 2006 |
| record_format | dspace |
| spelling | oxford-uuid:d70c926c-f85c-4849-814d-f80670ecf5b72022-03-27T08:38:09ZX-ray probe development for collective scattering measurements in dense plasmasJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:d70c926c-f85c-4849-814d-f80670ecf5b7EnglishSymplectic Elements at Oxford2006Urry, MGregori, GLanden, OPak, AGlenzer, SX-ray spectra and conversion efficiencies of the laser-produced chlorine Ly- α and K- α line radiation have been investigated to develop X-ray probes for the collective scattering regime. The Ly- α radiation was produced by either smoothed or un-smoothed laser beams with nanosecond-long laser pulses yielding high conversion efficiencies of up to 0.3% sufficient for X-ray scattering measurements. However, the time-integrated measurements show a significant dielectronic satellite emission on the red wing of the primary Ly- α line which must be avoided to resolve the plasmon feature in the scattering spectra. We find no red wing emission features for ultra-short pulse laser produced K-α radiation. The bandwidth of ΔE/E = 2 × 10-3 is suited for collective scattering, but the conversion efficiency falls short of the high values achieved for the Ly-α. These findings indicate that present laser-produced X-ray sources will restrict the choice of detectors and plasma conditions for collective X-ray scattering from dense plasmas. |
| spellingShingle | Urry, M Gregori, G Landen, O Pak, A Glenzer, S X-ray probe development for collective scattering measurements in dense plasmas |
| title | X-ray probe development for collective scattering measurements in dense plasmas |
| title_full | X-ray probe development for collective scattering measurements in dense plasmas |
| title_fullStr | X-ray probe development for collective scattering measurements in dense plasmas |
| title_full_unstemmed | X-ray probe development for collective scattering measurements in dense plasmas |
| title_short | X-ray probe development for collective scattering measurements in dense plasmas |
| title_sort | x ray probe development for collective scattering measurements in dense plasmas |
| work_keys_str_mv | AT urrym xrayprobedevelopmentforcollectivescatteringmeasurementsindenseplasmas AT gregorig xrayprobedevelopmentforcollectivescatteringmeasurementsindenseplasmas AT landeno xrayprobedevelopmentforcollectivescatteringmeasurementsindenseplasmas AT paka xrayprobedevelopmentforcollectivescatteringmeasurementsindenseplasmas AT glenzers xrayprobedevelopmentforcollectivescatteringmeasurementsindenseplasmas |