Optimized x-ray sources for x-ray diffraction measurements at the Omega Laser Facility
The use of x-ray diffraction (XRD) measurements in laser-driven dynamic compression experiments at high-power laser facilities is becoming increasingly common. Diffraction allows one to probe in situ the transformations occurring at the atomic level at extreme conditions of pressure, temperature, an...
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| Veröffentlicht in: | Review of scientific instruments 2019-12, Vol.90 (12), p.125113-125113 |
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| container_title | Review of scientific instruments |
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| creator | Coppari, F. Smith, R. F. Thorn, D. B. Rygg, J. R. Liedahl, D. A. Kraus, R. G. Lazicki, A. Millot, M. Eggert, J. H. |
| description | The use of x-ray diffraction (XRD) measurements in laser-driven dynamic compression experiments at high-power laser facilities is becoming increasingly common. Diffraction allows one to probe in situ the transformations occurring at the atomic level at extreme conditions of pressure, temperature, and time scale. In these measurements, the x-ray source is generated by irradiation of a solid foil. Under certain laser drive conditions, quasimonochromatic He-α radiation is generated. Careful analysis of the x-ray source plasma spectra reveals that this radiation is not a single line emission and that monochromaticity is highly dependent on the laser irradiance. In this work, we analyze how the spectra emitted by laser-irradiated copper, germanium, and iron foils at the Omega Laser vary depending on different laser drive conditions and discuss the implications for XRD experiments. |
| doi_str_mv | 10.1063/1.5111878 |
| format | Article |
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F. ; Thorn, D. B. ; Rygg, J. R. ; Liedahl, D. A. ; Kraus, R. G. ; Lazicki, A. ; Millot, M. ; Eggert, J. H.</creator><creatorcontrib>Coppari, F. ; Smith, R. F. ; Thorn, D. B. ; Rygg, J. R. ; Liedahl, D. A. ; Kraus, R. G. ; Lazicki, A. ; Millot, M. ; Eggert, J. H.</creatorcontrib><description>The use of x-ray diffraction (XRD) measurements in laser-driven dynamic compression experiments at high-power laser facilities is becoming increasingly common. Diffraction allows one to probe in situ the transformations occurring at the atomic level at extreme conditions of pressure, temperature, and time scale. In these measurements, the x-ray source is generated by irradiation of a solid foil. Under certain laser drive conditions, quasimonochromatic He-α radiation is generated. Careful analysis of the x-ray source plasma spectra reveals that this radiation is not a single line emission and that monochromaticity is highly dependent on the laser irradiance. 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Under certain laser drive conditions, quasimonochromatic He-α radiation is generated. Careful analysis of the x-ray source plasma spectra reveals that this radiation is not a single line emission and that monochromaticity is highly dependent on the laser irradiance. In this work, we analyze how the spectra emitted by laser-irradiated copper, germanium, and iron foils at the Omega Laser vary depending on different laser drive conditions and discuss the implications for XRD experiments.</description><subject>Foils</subject><subject>Germanium</subject><subject>High power lasers</subject><subject>Irradiance</subject><subject>Irradiation</subject><subject>Lasers</subject><subject>Plasma spectra</subject><subject>Scientific apparatus & instruments</subject><subject>Spectral emittance</subject><subject>X ray sources</subject><subject>X-ray diffraction</subject><issn>0034-6748</issn><issn>1089-7623</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNp90U9rFDEYBvAgit1WD34BCXrRwtT8m0lyLMWqsLCX1mvIJm9sys5kTTLF9dM3y64KguYSCD8e8r4PQq8ouaBk4B_oRU8pVVI9QQtKlO7kwPhTtCCEi26QQp2g01LuSTsNPkcnnCrNpe4X6OtqW-MYf4LHP7psd7ikOTsoOKR8fPExhGxdjWnCI9gyZxhhqgXbiusd4NUI3yxe2gIZX1sXN7HuXqBnwW4KvDzeZ-j2-uPN1eduufr05epy2Tkh-tpxSYj3XmpqmRdBDOtBK-05oyAF69kQFIWgQJJmhOBOOwUDk2sFtCda8DP05pCbSo2muFjB3bk0TeCqoX0bUe3RuwPa5vR9hlLNGIuDzcZOkOZiGOeMKE76vtG3f9H7to-pjdAUkwNXWuim3h-Uy6mUDMFscxxt3hlKzL4RQ82xkWZfHxPn9Qj-t_xVQQPnB7D_vd1v-b9p_8QPKf-BZusDfwTbW59L</recordid><startdate>20191201</startdate><enddate>20191201</enddate><creator>Coppari, F.</creator><creator>Smith, R. 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Careful analysis of the x-ray source plasma spectra reveals that this radiation is not a single line emission and that monochromaticity is highly dependent on the laser irradiance. In this work, we analyze how the spectra emitted by laser-irradiated copper, germanium, and iron foils at the Omega Laser vary depending on different laser drive conditions and discuss the implications for XRD experiments.</abstract><cop>United States</cop><pub>American Institute of Physics</pub><pmid>31893795</pmid><doi>10.1063/1.5111878</doi><tpages>12</tpages><orcidid>https://orcid.org/0000-0003-1592-3898</orcidid><orcidid>https://orcid.org/0000-0003-4414-3532</orcidid><orcidid>https://orcid.org/0000-0002-0605-7847</orcidid><orcidid>https://orcid.org/0000000206057847</orcidid><orcidid>https://orcid.org/0000000344143532</orcidid><orcidid>https://orcid.org/0000000315923898</orcidid><oa>free_for_read</oa></addata></record> |
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| source | AIP Journals Complete; Alma/SFX Local Collection |
| subjects | Foils Germanium High power lasers Irradiance Irradiation Lasers Plasma spectra Scientific apparatus & instruments Spectral emittance X ray sources X-ray diffraction |
| title | Optimized x-ray sources for x-ray diffraction measurements at the Omega Laser Facility |
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