Active readout KAP x-ray spectrometer. [Laser-produced plasma diagnostics]

Conference · Mon Oct 06 00:00:00 EDT 1975

OSTI ID:7333366

Koppel, L N; Richards, L M; Campbell, D E

It was found that a new type of solid-state detector known as the self-scanning photodiode array can be used to obtain the active readout of data in wavelength-dispersive x-ray spectrometers. The use of this device to recover x-ray spectral data for glass microspheres heated by Lawrence Livermore Laboratory's CYCLOPS laser is reported. The self-scanning photodiode array is a product of the MOS electronics fabrication technology. It consists of an array of semi-discrete diffused junction photodiodes deployed along a line on a silicon chip. The signals generated in the array of diodes are serially-scanned and multiplexed by a scanning circuit built on the chip. The sensitivity and other aspects of the response of the photodiode arrays to low-energy x-rays has been previously reported. The photodiode array was used in conjunction with a flat KAP single-crystal in a series of spectrometry experiments. Of particular interest has been the analysis of the hydrogen-like and helium-like 1s-2p radiations of silicon in the neighborhood of 2 keV.

• Research Organization: California Univ., Livermore (USA). Lawrence Livermore Lab.
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 7333366
• Report Number(s): UCRL-77074; CONF-751130-37; TRN: 77-000918
• Resource Relation: Conference: APS meeting, St. Petersburg, FL, USA, 10 Nov 1975
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
LASER-PRODUCED PLASMA
PLASMA DIAGNOSTICS
X-RAY SPECTROMETERS
PHOTODIODES
ELECTRON DENSITY
ELECTRON TEMPERATURE
MICROSPHERES
X-RAY SPECTRA
MEASURING INSTRUMENTS
PLASMA
SEMICONDUCTOR DEVICES
SEMICONDUCTOR DIODES
SPECTRA
SPECTROMETERS
700102* - Fusion Energy- Plasma Research- Diagnostics
440103 - Radiation Instrumentation- Nuclear Spectroscopic Instrumentation