Streaked optical pyrometer for proton-driven isochoric heating experiments of solid and foam targets
We have designed, built, and calibrated an ultrafast streaked optical pyrometer (SOP) with ∼5 ps resolution for measuring the time-resolved surface blackbody temperature of an isochorically heated plasma. The pyrometer is calibrated to measure temperatures from 0.5 eV to 25 eV, with the option of ad...
| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2020-04-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/1.5121538 |
| _version_ | 1828344687717515264 |
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| author | R. Roycroft B. Bowers H. Smith E. McCary F. Aymond G. M. Dyer H. J. Quevedo P. A. Bradley E. L. Vold L. Yin B. M. Hegelich |
| author_facet | R. Roycroft B. Bowers H. Smith E. McCary F. Aymond G. M. Dyer H. J. Quevedo P. A. Bradley E. L. Vold L. Yin B. M. Hegelich |
| author_sort | R. Roycroft |
| collection | DOAJ |
| description | We have designed, built, and calibrated an ultrafast streaked optical pyrometer (SOP) with ∼5 ps resolution for measuring the time-resolved surface blackbody temperature of an isochorically heated plasma. The pyrometer is calibrated to measure temperatures from 0.5 eV to 25 eV, with the option of adding calibrated neutral density filters to observe hotter plasmas. We demonstrated the use of this pyrometer on isochoric heating experiments using laser-accelerated proton beams as an energy source at the f/40 beamline of the Texas Petawatt Laser. We used the large focal spot size (∼80 μm radius) of the f/40 pulses to accelerate high numbers of ∼MeV protons off 5 μm thick solid gold targets. During our experimental campaign, we heated 10 µm thick aluminum foil targets to 1–10 eV over a duration of 50 ps and also observed heating to ∼2 eV in 100 µm thick 60 mg/cm3 carbon foams using the SOP to measure both the temperature and heating timescale. |
| first_indexed | 2024-04-14T00:01:03Z |
| format | Article |
| id | doaj.art-37aebc3f08494202aacf9d2c18568c30 |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-04-14T00:01:03Z |
| publishDate | 2020-04-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-37aebc3f08494202aacf9d2c18568c302022-12-22T02:23:41ZengAIP Publishing LLCAIP Advances2158-32262020-04-01104045220045220-1010.1063/1.5121538Streaked optical pyrometer for proton-driven isochoric heating experiments of solid and foam targetsR. Roycroft0B. Bowers1H. Smith2E. McCary3F. Aymond4G. M. Dyer5H. J. Quevedo6P. A. Bradley7E. L. Vold8L. Yin9B. M. Hegelich10The University of Texas at Austin, Austin, Texas 78712, USAThe University of Texas at Austin, Austin, Texas 78712, USAThe University of Texas at Austin, Austin, Texas 78712, USAThe University of Texas at Austin, Austin, Texas 78712, USAThe University of Texas at Austin, Austin, Texas 78712, USASLAC National Accelerator Laboratory, Menlo Park, California 94025, USAThe University of Texas at Austin, Austin, Texas 78712, USALos Alamos National Laboratory, Los Alamos, New Mexico 87545, USALos Alamos National Laboratory, Los Alamos, New Mexico 87545, USALos Alamos National Laboratory, Los Alamos, New Mexico 87545, USAThe University of Texas at Austin, Austin, Texas 78712, USAWe have designed, built, and calibrated an ultrafast streaked optical pyrometer (SOP) with ∼5 ps resolution for measuring the time-resolved surface blackbody temperature of an isochorically heated plasma. The pyrometer is calibrated to measure temperatures from 0.5 eV to 25 eV, with the option of adding calibrated neutral density filters to observe hotter plasmas. We demonstrated the use of this pyrometer on isochoric heating experiments using laser-accelerated proton beams as an energy source at the f/40 beamline of the Texas Petawatt Laser. We used the large focal spot size (∼80 μm radius) of the f/40 pulses to accelerate high numbers of ∼MeV protons off 5 μm thick solid gold targets. During our experimental campaign, we heated 10 µm thick aluminum foil targets to 1–10 eV over a duration of 50 ps and also observed heating to ∼2 eV in 100 µm thick 60 mg/cm3 carbon foams using the SOP to measure both the temperature and heating timescale.http://dx.doi.org/10.1063/1.5121538 |
| spellingShingle | R. Roycroft B. Bowers H. Smith E. McCary F. Aymond G. M. Dyer H. J. Quevedo P. A. Bradley E. L. Vold L. Yin B. M. Hegelich Streaked optical pyrometer for proton-driven isochoric heating experiments of solid and foam targets AIP Advances |
| title | Streaked optical pyrometer for proton-driven isochoric heating experiments of solid and foam targets |
| title_full | Streaked optical pyrometer for proton-driven isochoric heating experiments of solid and foam targets |
| title_fullStr | Streaked optical pyrometer for proton-driven isochoric heating experiments of solid and foam targets |
| title_full_unstemmed | Streaked optical pyrometer for proton-driven isochoric heating experiments of solid and foam targets |
| title_short | Streaked optical pyrometer for proton-driven isochoric heating experiments of solid and foam targets |
| title_sort | streaked optical pyrometer for proton driven isochoric heating experiments of solid and foam targets |
| url | http://dx.doi.org/10.1063/1.5121538 |
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