Back to Search
Start Over
X-ray absorption spectroscopy of aluminum z-pinch plasma with tungsten backlighter planar wire array source
- Source :
- The Review of scientific instruments. 83(10)
- Publication Year :
- 2012
-
Abstract
- Absorption features from K-shell aluminum z-pinch plasmas have recently been studied on Zebra, the 1.7 MA pulse power generator at the Nevada Terawatt Facility. In particular, tungsten plasma has been used as a semi-backlighter source in the generation of aluminum K-shell absorption spectra by placing a single Al wire at or near the end of a single planar W array. All spectroscopic experimental results were recorded using a time-integrated, spatially resolved convex potassium hydrogen phthalate (KAP) crystal spectrometer. Other diagnostics used to study these plasmas included x-ray detectors, optical imaging, laser shadowgraphy, and time-gated and time-integrated x-ray pinhole imagers. Through comparisons with previous publications, Al K-shell absorption lines are shown to be from much lower electron temperature (∼10–40 eV) plasmas than emission spectra (∼350–500 eV).
Details
- ISSN :
- 10897623
- Volume :
- 83
- Issue :
- 10
- Database :
- OpenAIRE
- Journal :
- The Review of scientific instruments
- Accession number :
- edsair.doi.dedup.....ba8a5e895854667cbd5ef0709c8d4186