Observation of annular electron beam transport in multi-TeraWatt laser-solid interactions
Electron energy transport experiments conducted on the Vulcan 100 TW laser facility with large area foil targets are described. For plastic targets it is shown, by the plasma expansion observed in shadowgrams taken after the interaction, that there is a transition between the collimated electron flo...
| Main Authors: | , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2006
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| _version_ | 1826265483554324480 |
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| author | Norreys, P Green, J Davies, JR Tatarakis, M Clark, E Beg, F Dangor, A Lancaster, K Wei, MS Zepf, M Krushelnick, K |
| author_facet | Norreys, P Green, J Davies, JR Tatarakis, M Clark, E Beg, F Dangor, A Lancaster, K Wei, MS Zepf, M Krushelnick, K |
| author_sort | Norreys, P |
| collection | OXFORD |
| description | Electron energy transport experiments conducted on the Vulcan 100 TW laser facility with large area foil targets are described. For plastic targets it is shown, by the plasma expansion observed in shadowgrams taken after the interaction, that there is a transition between the collimated electron flow previously reported at the 10 TW power level to an annular electron flow pattern with a 20° divergence angle for peak powers of 68 TW. Intermediate powers show that both the central collimated flow pattern and the surrounding annular-shaped heated region can co-exist. The measurements are consistent with the Davies rigid beam model for fast electron flow (Davies 2003 Phys. Rev. E 68 056404) and LSP modelling provides additional insight into the observed results. © 2006 IOP Publishing Ltd. |
| first_indexed | 2024-03-06T20:24:24Z |
| format | Journal article |
| id | oxford-uuid:2eeb37da-05d2-44e5-a4f3-a1df1302fb8e |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T20:24:24Z |
| publishDate | 2006 |
| record_format | dspace |
| spelling | oxford-uuid:2eeb37da-05d2-44e5-a4f3-a1df1302fb8e2022-03-26T12:51:55ZObservation of annular electron beam transport in multi-TeraWatt laser-solid interactionsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:2eeb37da-05d2-44e5-a4f3-a1df1302fb8eEnglishSymplectic Elements at Oxford2006Norreys, PGreen, JDavies, JRTatarakis, MClark, EBeg, FDangor, ALancaster, KWei, MSZepf, MKrushelnick, KElectron energy transport experiments conducted on the Vulcan 100 TW laser facility with large area foil targets are described. For plastic targets it is shown, by the plasma expansion observed in shadowgrams taken after the interaction, that there is a transition between the collimated electron flow previously reported at the 10 TW power level to an annular electron flow pattern with a 20° divergence angle for peak powers of 68 TW. Intermediate powers show that both the central collimated flow pattern and the surrounding annular-shaped heated region can co-exist. The measurements are consistent with the Davies rigid beam model for fast electron flow (Davies 2003 Phys. Rev. E 68 056404) and LSP modelling provides additional insight into the observed results. © 2006 IOP Publishing Ltd. |
| spellingShingle | Norreys, P Green, J Davies, JR Tatarakis, M Clark, E Beg, F Dangor, A Lancaster, K Wei, MS Zepf, M Krushelnick, K Observation of annular electron beam transport in multi-TeraWatt laser-solid interactions |
| title | Observation of annular electron beam transport in multi-TeraWatt laser-solid interactions |
| title_full | Observation of annular electron beam transport in multi-TeraWatt laser-solid interactions |
| title_fullStr | Observation of annular electron beam transport in multi-TeraWatt laser-solid interactions |
| title_full_unstemmed | Observation of annular electron beam transport in multi-TeraWatt laser-solid interactions |
| title_short | Observation of annular electron beam transport in multi-TeraWatt laser-solid interactions |
| title_sort | observation of annular electron beam transport in multi terawatt laser solid interactions |
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