Multicolor, time-gated, soft x-ray pinhole imaging of wire array and gas puff Z pinches on the Z and Saturn pulsed power generators

Journal Article · Wed Oct 15 04:00:00 EDT 2008 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.2969280· OSTI ID:21266568

Jones, B; Coverdale, C A; Nielsen, D S; Jones, M C; Deeney, C ^[1]; Serrano, J D; Nielsen-Weber, L B; Meyer, C J ^[2]; Apruzese, J P; Clark, R W ^[3]; Coleman, P L ^[4]

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1. Sandia National Laboratories, Albuquerque, New Mexico 8718 (United States)
2. Ktech Corporation, Albuquerque, New Mexico 87123 (United States)
3. Naval Research Laboratory, Washington, DC 20375 (United States)
4. Alameda Applied Sciences Corp., San Leandro, California 94577 (United States)

A multicolor, time-gated, soft x-ray pinhole imaging instrument is fielded as part of the core diagnostic set on the 25 MA Z machine [M. E. Savage et al., in Proceedings of the Pulsed Power Plasma Sciences Conference (IEEE, New York, 2007), p. 979] for studying intense wire array and gas puff Z-pinch soft x-ray sources. Pinhole images are reflected from a planar multilayer mirror, passing 277 eV photons with <10 eV bandwidth. An adjacent pinhole camera uses filtration alone to view 1-10 keV photons simultaneously. Overlaying these data provides composite images that contain both spectral as well as spatial information, allowing for the study of radiation production in dense Z-pinch plasmas. Cu wire arrays at 20 MA on Z show the implosion of a colder cloud of material onto a hot dense core where K-shell photons are excited. A 528 eV imaging configuration has been developed on the 8 MA Saturn generator [R. B. Spielman et al., and A. I. P. Conf, Proc. 195, 3 (1989)] for imaging a bright Li-like Ar L-shell line. Ar gas puff Z pinches show an intense K-shell emission from a zippering stagnation front with L-shell emission dominating as the plasma cools.

• OSTI ID: 21266568
• Journal Information: Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 10 Vol. 79; ISSN 0034-6748; ISSN RSINAK
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
COPPER
EV RANGE
EXPLODING WIRES
IMAGES
K SHELL
L SHELL
LINEAR Z PINCH DEVICES
PHOTONS
PLASMA
SOFT X RADIATION
X-RAY SOURCES