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Linear position-sensitive x-ray detector incorporating a self-scanning photodiode array

Gamble, Ronald C. and Baldeschwieler, John D. and Giffin, Charles E. (1979) Linear position-sensitive x-ray detector incorporating a self-scanning photodiode array. Review of Scientific Instruments, 50 (11). pp. 1416-1420. ISSN 0034-6748. http://resolver.caltech.edu/CaltechAUTHORS:GAMrsi79

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Abstract

A linear position-sensitive x-ray detector for x-ray spectroscopy and diffraction applications has been tested which can provide excellent spatial resolution, wide dynamic range and good sensitivity. The heart of the system is a self-scanning, photosensitive silicon diode array. It is interfaced via fiber optics to a thin layer of ZnS which fluoresces visible light upon absorption of x-radiation. The conversion to visible light and optical coupling provide several-fold gain in the efficiency of detection as compared to the direct detection of x-ray by the diode array. Equally important is that the array is protected from irreversible damage by high energy radiation, a limitation which previously hindered this application of silicon diode technology.


Item Type:Article
Additional Information:Copyright © 1979 American Institute of Physics Received 30 March 1979; accepted for publication 2 August 1979 This work was supported by NSF grant CHE75-15146A4. The position-sensitive detector was constructed under grants from NASA and the California Institute of Technology's President's Fund. We thank H. Moham for his careful machine work and R. Iirigoyan for the electronics design. This is Contribution No. 5995 from the Arthur Amos Noyes Laboratory of Chemical Physics. Some of the data presented in this work were obtained at the Stanford Synchrotron Radiation Laboratory which is supported by the NSF (under Contract DMR77-27489), in cooperation with SLAC and the Department of Energy.
Subject Keywords:POSITION SENSITIVE DETECTORS; X–RADIATION; PHOTODIODES; X–RAY SPECTROSCOPY; X–RAY DIFFRACTION; SPATIAL RESOLUTION; SENSITIVITY; SILICON DIODES; ZINC SULFIDES; FLUORESCENCE; WAVEGUIDES; ABSORPTION; EFFICIENCY; LAYERS
Record Number:CaltechAUTHORS:GAMrsi79
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:GAMrsi79
Alternative URL:http://dx.doi.org/10.1063/1.1135730
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:4892
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:12 Sep 2006
Last Modified:26 Dec 2012 09:02

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