1 February 1985 Use Of A C.C.D. Array In An X-Ray Pinhole Camera
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Proceedings Volume 0491, 16th Intl Congress on High Speed Photography and Photonics; (1985) https://doi.org/10.1117/12.967958
Event: 16th International Congress on High Speed Photography and Photonics, 1984, Strasbourg, France
Abstract
X-ray imaging adapted to the laser-matter interaction experiments consits in recording plasma images from its X-ray emission ; those phenomena have between 100 ps and some nanoseconds duration. When we only need spatial information on 1-10 keV X-ray emission, the most simple imaging device is the pinhole camera ; the two dimension image of the plasma is temporally integrated by an X-ray sensitive detector. Until now, X-ray film was used. Its operation and processing were long and tedious, so we replaced it by a television camera built around a Charge Coupled Device (C.C.D.). This camera is directly integrated in the pinhole camera. The X-ray detection is made by the silicon substrat of a C.C.D. without input window working in the vacuum of the expe-riment chamber ; a compact camera head (40 mm diameter, 120 mm length) located near the C.C.D. (1 to 2 cm) makes the charge/voltage conversion and the signal amplification. The immediate operation of images is done by an image acquisition and processing unit after digitizing the video signal on 8 bits. From measurements made on a continuous X-ray source (5,4 keV) we could point out the fact that a THOMSON-CSF THX 31135 CCD is 10 times more sensitive than the X-ray SB2 KODAK film that we use in pinhole cameras. The dynamic range measured in these conditions was about 300. The first experimental results obtained on a pulsed X-ray source are presented.
© (1985) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
C. Cavailler, C. Cavailler, Ph. Henry, Ph. Henry, J. Launspach, J. Launspach, A. Mens, A. Mens, M. Rostaing, M. Rostaing, R. Sauneuf, R. Sauneuf, } "Use Of A C.C.D. Array In An X-Ray Pinhole Camera", Proc. SPIE 0491, 16th Intl Congress on High Speed Photography and Photonics, (1 February 1985); doi: 10.1117/12.967958; https://doi.org/10.1117/12.967958
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