Scintillation Gas Detector Based on a Charge Coupled Device. A Feasibility Study of a Position Sensitive Detector for ESRF High Brillance

摘要

A new imaging X-ray detector able to copy with the high photon flux of ESRF X-ray sources has been proposed. The detector has been based on scintillation gas chamber, which converts X-ray photon with a wavelength of 1.54 Angstrom in U.V. photons, coupled with a CCD, which detects in the position of the U.V. photons with wavelength greater than 1800 Angstrom. Using this detector, saturation effects due to the spatial charge of the avalanche discharge in the gas and radiation damage on the CCD, have been eliminated. A conical optical fibre system, collecting the U.V. photon flashes on CCD, magnyfying the detecting area of detector and allowing to obtain spatial resolution better than 0.3 mm, is suggested. (Atomindex citation 19:028957)