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

被引：11

作者：

Dunn, J. ^{[1
]}

Magee, E. W. ^{[1
]}

Shepherd, R. ^{[1
]}

Chen, H. ^{[1
]}

Hansen, S. B. ^{[1
]}

Moon, S. J. ^{[1
]}

Brown, G. V. ^{[1
]}

Gu, M. -F. ^{[1
]}

Beiersdorfer, P. ^{[1
]}

Purvis, M. A. ^{[2
,3
]}

机构：

[1] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA

[2] Colorado State Univ, Dept Elect & Comp Engn, Ft Collins, CO 80523 USA

[3] Colorado State Univ, NSF ERC Extreme Ultraviolet Sci & Technol, Ft Collins, CO 80523 USA

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2008年 / 79卷 / 10期

关键词：

plasma diagnostics; plasma production by laser; plasma X-ray sources;

D O I：

10.1063/1.2968704

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A large radius, R=44.3 m, high resolution grating spectrometer (HRGS) with 2400 lines/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 A wavelength range. The instrument can be run with a 10-20 mu m wide slit to achieve the best spectral resolving power, approaching 1000 and similar to crystal spectrometers at 12-20 A, 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 (full width at half maximum), 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.

引用

页数：4

共 15 条

[1] Flat-field grating spectrometer for high-resolution soft x-ray and extreme ultraviolet measurements on an electron beam ion trap [J].