Creation of hot dense matter in short-pulse laser-plasma interaction with tamped titanium foils
Dense titanium plasma has been heated to an electron temperature up to 1300 eV with a 100 TW, high intensity short-pulse laser. The experiments were conducted using Ti foils (5 μm thick) sandwiched between layers of either aluminum (1 or 2 μm thick) or plastic (2 μm thick) to prevent the effects of...
| Main Authors: | , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2007
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| _version_ | 1826266246030557184 |
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| author | Chen, SN Gregori, G Patel, P Chung, H Evans, R Freeman, R Saiz, E Glenzer, S Hansen, S Khattak, F King, J Mackinnon, A Notley, M Pasley, JR Riley, D Stephens, R Weber, R Wilks, S Beg, F |
| author_facet | Chen, SN Gregori, G Patel, P Chung, H Evans, R Freeman, R Saiz, E Glenzer, S Hansen, S Khattak, F King, J Mackinnon, A Notley, M Pasley, JR Riley, D Stephens, R Weber, R Wilks, S Beg, F |
| author_sort | Chen, SN |
| collection | OXFORD |
| description | Dense titanium plasma has been heated to an electron temperature up to 1300 eV with a 100 TW, high intensity short-pulse laser. The experiments were conducted using Ti foils (5 μm thick) sandwiched between layers of either aluminum (1 or 2 μm thick) or plastic (2 μm thick) to prevent the effects of prepulse. Targets of two different sizes, i.e., 250 × 250 μm 2 and 1×1 mm2 were used. Spectral measurements of the Ti inner-shell emission, in the region between 4 and 5 keV, were taken from, the front-side (i.e., the laser illuminated side) of the target. The data show large shifts in the Kα emission from open-shell ions, suggesting bulk heating of the sample at near solid density, which was largest for reduced mass targets. Comparison with collisional radiative and 2D radiation hydrodynamics codes indicates a peak temperature of Te,peak= 1300 eV of solid titanium plasma in ∼0.2 μm thin layer. Higher bulk temperature (T e,bulk=100 eV) for aluminum tamped compared to CH tamped targets (Te,bulk=40 eV) was observed. A possible explanation for this difference is described whereby scattering due to the nuclear charge of the tamping material leads to modified electron transport behavior. © 2007 American Institute of Physics. |
| first_indexed | 2024-03-06T20:35:59Z |
| format | Journal article |
| id | oxford-uuid:32a44f94-c84e-4827-8e8f-ae64b305a219 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T20:35:59Z |
| publishDate | 2007 |
| record_format | dspace |
| spelling | oxford-uuid:32a44f94-c84e-4827-8e8f-ae64b305a2192022-03-26T13:15:25ZCreation of hot dense matter in short-pulse laser-plasma interaction with tamped titanium foilsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:32a44f94-c84e-4827-8e8f-ae64b305a219EnglishSymplectic Elements at Oxford2007Chen, SNGregori, GPatel, PChung, HEvans, RFreeman, RSaiz, EGlenzer, SHansen, SKhattak, FKing, JMackinnon, ANotley, MPasley, JRRiley, DStephens, RWeber, RWilks, SBeg, FDense titanium plasma has been heated to an electron temperature up to 1300 eV with a 100 TW, high intensity short-pulse laser. The experiments were conducted using Ti foils (5 μm thick) sandwiched between layers of either aluminum (1 or 2 μm thick) or plastic (2 μm thick) to prevent the effects of prepulse. Targets of two different sizes, i.e., 250 × 250 μm 2 and 1×1 mm2 were used. Spectral measurements of the Ti inner-shell emission, in the region between 4 and 5 keV, were taken from, the front-side (i.e., the laser illuminated side) of the target. The data show large shifts in the Kα emission from open-shell ions, suggesting bulk heating of the sample at near solid density, which was largest for reduced mass targets. Comparison with collisional radiative and 2D radiation hydrodynamics codes indicates a peak temperature of Te,peak= 1300 eV of solid titanium plasma in ∼0.2 μm thin layer. Higher bulk temperature (T e,bulk=100 eV) for aluminum tamped compared to CH tamped targets (Te,bulk=40 eV) was observed. A possible explanation for this difference is described whereby scattering due to the nuclear charge of the tamping material leads to modified electron transport behavior. © 2007 American Institute of Physics. |
| spellingShingle | Chen, SN Gregori, G Patel, P Chung, H Evans, R Freeman, R Saiz, E Glenzer, S Hansen, S Khattak, F King, J Mackinnon, A Notley, M Pasley, JR Riley, D Stephens, R Weber, R Wilks, S Beg, F Creation of hot dense matter in short-pulse laser-plasma interaction with tamped titanium foils |
| title | Creation of hot dense matter in short-pulse laser-plasma interaction with tamped titanium foils |
| title_full | Creation of hot dense matter in short-pulse laser-plasma interaction with tamped titanium foils |
| title_fullStr | Creation of hot dense matter in short-pulse laser-plasma interaction with tamped titanium foils |
| title_full_unstemmed | Creation of hot dense matter in short-pulse laser-plasma interaction with tamped titanium foils |
| title_short | Creation of hot dense matter in short-pulse laser-plasma interaction with tamped titanium foils |
| title_sort | creation of hot dense matter in short pulse laser plasma interaction with tamped titanium foils |
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