Title :
Application of a TMGe detector to high energy pulsed X-ray tomography
Author :
Mathy, F. ; Girard, J.L. ; Thomas, G.
Author_Institution :
CENG, Grenoble, France
Abstract :
A TMGe detector designed for high-energy tomography has been successfully tested on a 100-Hz pulsed X-ray beam produced by a 8-MeV linear accelerator. A dynamic range of five decades has been measured, corresponding to 25-cm lead attenuation, with a maximum dose rate of 0.43 rad/s. The ratio between the electronic pulse current and the ionic interpulse current, mostly dependent on the duty cycle, was improved by means of electronics integrating during the pulse and just before. TMGe has been demonstrated to be an interesting detecting medium for fan-beam tomography, where a large number of very homogeneous, high-dynamic-range cells is required
Keywords :
X-ray detection and measurement; ionisation chambers; organic compounds; TMGe detector; dynamic range; electronic pulse current; fan-beam tomography; high energy pulsed X-ray tomography; high-dynamic-range cells; ionic interpulse current; maximum dose rate; Attenuation; Electromagnetic wave absorption; Electron mobility; Elementary particle vacuum; Purification; Temperature; Voltage; X-ray detection; X-ray detectors; X-ray tomography;
Conference_Titel :
Conduction and Breakdown in Dielectric Liquids, 1990. ICDL 1990. Conference Record., 10th International Conference on
Conference_Location :
Grenoble
DOI :
10.1109/ICDL.1990.202878
