A high-speed two-frame, 1-2 ns gated X-ray CMOS imager used as a hohlraum diagnostic on the National Ignition Facility (invited)
A novel x-ray imager, which takes time-resolved gated images along a single line-of-sight, has been successfully implemented at the National Ignition Facility (NIF). This Gated Laser Entrance Hole diagnostic, G-LEH, incorporates a high-speed multi-frame CMOS x-ray imager developed by Sandia National...
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| Veröffentlicht in: | Review of scientific instruments 2016-11, Vol.87 (11), p.11E203-11E203 |
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| container_title | Review of scientific instruments |
| container_volume | 87 |
| creator | Chen, Hui Palmer, N. Dayton, M. Carpenter, A. Schneider, M. B. Bell, P. M. Bradley, D. K. Claus, L. D. Fang, L. Hilsabeck, T. Hohenberger, M. Jones, O. S. Kilkenny, J. D. Kimmel, M. W. Robertson, G. Rochau, G. Sanchez, M. O. Stahoviak, J. W. Trotter, D. C. Porter, J. L. |
| description | A novel x-ray
imager, which takes time-resolved gated images
along a single line-of-sight, has been successfully implemented at the National
Ignition Facility (NIF). This Gated Laser Entrance Hole diagnostic, G-LEH,
incorporates a high-speed multi-frame CMOS
x-ray
imager developed by Sandia National Laboratories to upgrade the
existing Static X-ray
Imager diagnostic at NIF. The new diagnostic is capable of
capturing two laser-entrance-hole images per shot on its 1024 × 448
pixels photo-detector array, with integration times as short as 1.6 ns per frame.
Since its implementation on NIF, the G-LEH diagnostic has successfully acquired
images from various experimental campaigns, providing critical
new information for understanding the hohlraum performance in inertial confinement fusion
(ICF) experiments, such as the size of the laser entrance hole vs. time, the growth
of the laser-heated gold plasma bubble, the change in brightness of inner beam spots
due to time-varying cross beam energy transfer, and plasma instability growth near
the hohlraum
wall. |
| doi_str_mv | 10.1063/1.4962252 |
| format | Article |
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imager, which takes time-resolved gated images
along a single line-of-sight, has been successfully implemented at the National
Ignition Facility (NIF). This Gated Laser Entrance Hole diagnostic, G-LEH,
incorporates a high-speed multi-frame CMOS
x-ray
imager developed by Sandia National Laboratories to upgrade the
existing Static X-ray
Imager diagnostic at NIF. The new diagnostic is capable of
capturing two laser-entrance-hole images per shot on its 1024 × 448
pixels photo-detector array, with integration times as short as 1.6 ns per frame.
Since its implementation on NIF, the G-LEH diagnostic has successfully acquired
images from various experimental campaigns, providing critical
new information for understanding the hohlraum performance in inertial confinement fusion
(ICF) experiments, such as the size of the laser entrance hole vs. time, the growth
of the laser-heated gold plasma bubble, the change in brightness of inner beam spots
due to time-varying cross beam energy transfer, and plasma instability growth near
the hohlraum
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imager, which takes time-resolved gated images
along a single line-of-sight, has been successfully implemented at the National
Ignition Facility (NIF). This Gated Laser Entrance Hole diagnostic, G-LEH,
incorporates a high-speed multi-frame CMOS
x-ray
imager developed by Sandia National Laboratories to upgrade the
existing Static X-ray
Imager diagnostic at NIF. The new diagnostic is capable of
capturing two laser-entrance-hole images per shot on its 1024 × 448
pixels photo-detector array, with integration times as short as 1.6 ns per frame.
Since its implementation on NIF, the G-LEH diagnostic has successfully acquired
images from various experimental campaigns, providing critical
new information for understanding the hohlraum performance in inertial confinement fusion
(ICF) experiments, such as the size of the laser entrance hole vs. time, the growth
of the laser-heated gold plasma bubble, the change in brightness of inner beam spots
due to time-varying cross beam energy transfer, and plasma instability growth near
the hohlraum
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imager, which takes time-resolved gated images
along a single line-of-sight, has been successfully implemented at the National
Ignition Facility (NIF). This Gated Laser Entrance Hole diagnostic, G-LEH,
incorporates a high-speed multi-frame CMOS
x-ray
imager developed by Sandia National Laboratories to upgrade the
existing Static X-ray
Imager diagnostic at NIF. The new diagnostic is capable of
capturing two laser-entrance-hole images per shot on its 1024 × 448
pixels photo-detector array, with integration times as short as 1.6 ns per frame.
Since its implementation on NIF, the G-LEH diagnostic has successfully acquired
images from various experimental campaigns, providing critical
new information for understanding the hohlraum performance in inertial confinement fusion
(ICF) experiments, such as the size of the laser entrance hole vs. time, the growth
of the laser-heated gold plasma bubble, the change in brightness of inner beam spots
due to time-varying cross beam energy transfer, and plasma instability growth near
the hohlraum
wall.</abstract><cop>United States</cop><pmid>27910306</pmid><doi>10.1063/1.4962252</doi><tpages>7</tpages><orcidid>https://orcid.org/0000-0001-9706-8308</orcidid><orcidid>https://orcid.org/0000-0002-5887-9711</orcidid></addata></record> |
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| ispartof | Review of scientific instruments, 2016-11, Vol.87 (11), p.11E203-11E203 |
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| language | eng |
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| source | AIP Journals Complete; Alma/SFX Local Collection |
| title | A high-speed two-frame, 1-2 ns gated X-ray CMOS imager used as a hohlraum diagnostic on the National Ignition Facility (invited) |
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