L-shell spectroscopic diagnostics of radiation from krypton HED plasma sources

Journal Article · Tue Nov 15 00:00:00 EST 2016 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4960534· OSTI ID:22596500

Safronova, A. S.; Kantsyrev, V. L.; Shlyaptseva, V. V. ^[1]; Rawat, R. S.; Tan, K. S. ^[2]; Beiersdorfer, P.; Brown, G. V. ^[3]; Hell, N. ^[3]

---

1. University of Nevada, Reno, Nevada 89557 (United States)
2. National Institute of Education, Nanyang Technological University, Singapore 637616 (Singapore)
3. Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)

X-ray spectroscopy is a useful tool for diagnosing plasma sources due to its non-invasive nature. One such source is the dense plasma focus (DPF). Recent interest has developed to demonstrate its potential application as a soft x-ray source. We present the first spectroscopic studies of krypton high energy density plasmas produced on a 3 kJ DPF device in Singapore. In order to diagnose spectral features, and to obtain a more comprehensive understanding of plasma parameters, a new non-local thermodynamic equilibrium L-shell kinetic model for krypton was developed. It has the capability of incorporating hot electrons, with different electron distribution functions, in order to examine the effects that they have on emission spectra. To further substantiate the validity of this model, it is also benchmarked with data gathered from experiments on the electron beam ion trap (EBIT) at Lawrence Livermore National Laboratory, where data were collected using the high resolution EBIT calorimeter spectrometer.

• OSTI ID: 22596500
• Journal Information: Review of Scientific Instruments, Vol. 87, Issue 11; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
BENCHMARKS
CALORIMETERS
DIAGNOSIS
DISTRIBUTION FUNCTIONS
ELECTRON BEAMS
ELECTRONS
EMISSION SPECTRA
ENERGY DENSITY
KRYPTON
L SHELL
LAWRENCE LIVERMORE NATIONAL LABORATORY
PLASMA DENSITY
PLASMA FOCUS
SOFT X RADIATION
SPECTROMETERS
X-RAY SOURCES
X-RAY SPECTROSCOPY