X-ray Spectroscopy and Imaging of Combined X-pinches with Mo and W wires at Cornell and UNR 1MA Pulsed Power Devices

Journal Article · Thu Jan 05 04:00:00 EST 2006 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2159340· OSTI ID:20729235

Safronova, Alla; Kantsyrev, Victor; Fedin, Dmitry; Yilmaz, Fatih; Hoppe, Travis; Nalajala, Vidya ^[1]; Douglass, John; McBride, Ryan; Mitchell, Marc; Maxson, Lloyd; Hammer, David ^[2]

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1. Physics Department/220, University of Nevada, Reno, NV 89557 (United States)
2. Laboratory of Plasma Studies, Cornell University, Ithaca, NY 46566 (United States)

X-pinch experiments using combined Mo and W wires were implemented on the 1MA Cornell University (CU) COBRA and University of Nevada, Reno (UNR) ZEBRA facilities. Spatially-resolved and integrated x-ray spectral data and time integrated and time-gated pinhole x-ray images accumulated in these X-pinch experiments are analyzed. In particular, x-ray L-shell spectra of Mo ions and M-shell spectra of W ions have been studied. A non-LTE collisional-radiative (CR) atomic kinetic model of Mo, successfully applied before to interpret UNR and CU x-ray spectra from Mo X-pinches, was used here to provide plasma parameters from L-shell Mo radiation from the combined (W/Mo) X-pinches. The recently developed non-LTE CR model of W based on FAC atomic structure code data has been applied to identify and diagnose the spectral features of W ions and to provide parameters of the plasma from M-shell W radiation from W/Mo X-pinches. As a result, the radiative properties of W/Mo X-pinches produced on two 1 MA university-scale pulsed power facilities are analyzed and compared.

• OSTI ID: 20729235
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 808; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
EXPLODING WIRES
IMAGES
L SHELL
LTE
M SHELL
MOLYBDENUM
MOLYBDENUM IONS
PINCH EFFECT
PLASMA
TUNGSTEN
TUNGSTEN IONS
X RADIATION
X-RAY SPECTRA
X-RAY SPECTROSCOPY