Diagnostics for Z-pinch implosion experiments on PTS

The preliminary experiments of wire array implosion were performed on PTS, a 10 MA z-pinch driver with a 70 ns rise time. A set of diagnostics have been developed and fielded on PTS to study pinch physics and implosion dynamics of wire array. Radiated power measurement for soft x-rays was performed...

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Bibliographic Details
Main Authors: Ren, X D, Huang, X B, Zhou, S T, Zhang, S Q, Dan, J K, Li J, Cai, H C, Wang, K L, Ouyang, K, Xu Q, Duan, S C, Chen, G H, Wang, M, Feng, S P, Yang, L B, Xie, W P, Deng, J J
Format: Conference Proceeding
Language:English
Subjects:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
Arrays
Bolometers
Cameras
Diode detectors
Emission
EV RANGE
KEV RANGE
LASER IMPLOSIONS
LAYERS
LINEAR Z PINCH DEVICES
MIRRORS
Multilayers
NEODYMIUM LASERS
Pinhole cameras
Pinholes
PLASMA DIAGNOSTICS
PLASMA PRODUCTION
Plasmas (physics)
PULSE RISE TIME
Semiconductor lasers
SOFT X RADIATION
Soft x rays
SPATIAL RESOLUTION
SPECTRAL RESPONSE
STREAK CAMERAS
Wire
X ray spectra
X-rays
YAG lasers
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Summary:The preliminary experiments of wire array implosion were performed on PTS, a 10 MA z-pinch driver with a 70 ns rise time. A set of diagnostics have been developed and fielded on PTS to study pinch physics and implosion dynamics of wire array. Radiated power measurement for soft x-rays was performed by multichannel filtered x-ray diode array, and flat spectral responses x-ray diode detector. Total x-ray yield was measured by a calibrated, unfiltered nickel bolometer which was also used to obtain pinch power. Multiple time-gated pinhole cameras were used to produce spatial-resolved images of x-ray self-emission from plasmas. Two time-integrated pinhole cameras were used respectively with 20-μm Be filter and with multilayer mirrors to record images produced by >1-keV and 277±5 eV self-emission. An optical streak camera was used to produce radial implosion trajectories, and an x-ray streak camera paired with a horizontal slit was used to record a continuous time-history of emission with one-dimensional spatial resolution. A frequency-doubled Nd:YAG laser (532 nm) was used to produce four frame laser shadowgraph images with 6 ns time interval. We will briefly describe each of these diagnostics and present some typical results from them.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.4904796