Imaging suprathermal x-rays from a laboratory plasma jet using PIN-diode-based and scintillator-based 1D pinhole/coded aperture cameras
- Creators
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Zhou, Yi
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Pree, Seth
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Bellan, Paul M.
Abstract
A PIN-diode-based 1D x-ray camera and a scintillator-based 1D x-ray camera, both with a microsecond to submicrosecond time resolution, have been developed to perform time-resolved imaging of transient, low-intensity, suprathermal x-rays associated with magnetohydrodynamic instabilities disrupting a plasma jet. These cameras have a high detection efficiency over a broad x-ray band, a wide field of view, and the capability to produce > 50 time-resolved frames with a ≤ 1 μs time resolution. The x-ray images are formed by a pinhole or by a coded aperture placed outside a vacuum chamber in which the plasma jet is launched. The 1D imaging shows that the location of the x-ray source is either a few centimeters away from an inner disk electrode or near a spatially translatable metal frame that is 30–40 cm away from the electrode. Compared to a pinhole, a coded aperture increases the signal collection efficiency but also introduces unwanted artifacts.
Additional Information
© 2023 Author(s). Published under an exclusive license by AIP Publishing. This work was supported by USDOE ARPA-E Award No. DE-AR0001159 and by AFOSR Award No. FA9550-21-1-0379.Additional details
- Eprint ID
- 119302
- DOI
- 10.1063/5.0122760
- Resolver ID
- CaltechAUTHORS:20230215-30605800.2
- Advanced Research Projects Agency (ARPA)
- DE-AR0001159
- Air Force Office of Scientific Research (AFOSR)
- FA9550-21-1-0379
- Created
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2023-04-06Created from EPrint's datestamp field
- Updated
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2023-04-11Created from EPrint's last_modified field