High resolution soft x-ray spectroscopy of low Z K-shell emission from laser-produced plasmas

Dunn, J; Magee, E W; Shepherd, R; Chen, H; Hansen, S B; Moon, S J; Brown, G V; Gu, M; Beiersdorfer, P; Purvis, M A

doi:10.1063/1.2968704

High resolution soft x-ray spectroscopy of low Z K-shell emission from laser-produced plasmas

Journal Article · Wed May 21 00:00:00 EDT 2008 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.2968704· OSTI ID:965088

Dunn, J; Magee, E W; Shepherd, R; Chen, H; Hansen, S B; Moon, S J; Brown, G V; Gu, M; Beiersdorfer, P; Purvis, M A

A large radius, R = 44.3 m, High Resolution Grating Spectrometer (HRGS) with 2400 line/mm variable line spacing has been designed for laser-produced plasma experiments conducted at the Lawrence Livermore National Laboratory Jupiter Laser Facility. The instrument has been run with a low-noise, charge-coupled device detector to record high signal-to-noise spectra in the 10-50 {angstrom} wavelength range. The instrument can be run with a 10-20 {micro}m wide slit to achieve the best spectral resolving power, approaching 1000 and similar to crystal spectrometers at 12-20 {angstrom}, or in slitless operation with a small symmetrical emission source. We describe preliminary spectra emitted from various H-like and He-like low Z ion plasmas heated by 100-500 ps (FWHM), 527 nm wavelength laser pulses. This instrument can be developed as a useful spectroscopy platform relevant to laboratory-based astrophysics as well as high energy density plasma studies.

Research Organization:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA

Sponsoring Organization:: USDOE

DOE Contract Number:: W-7405-ENG-48

OSTI ID:: 965088

Report Number(s):: LLNL-JRNL-404496

Journal Information:: Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Vol. 79; ISSN 0034-6748; ISSN RSINAK

Country of Publication:: United States

Language:: English

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42 ENGINEERING
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
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High resolution soft x-ray spectroscopy of low Z K-shell emission from laser-produced plasmas

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