Title :
Characteristics of a novel type proportional counter with capillary plate
Author :
Tamura, T. ; Sakurai, H. ; Noma, M. ; Gunji, S. ; Ueno, H. ; Tukahara, M.
Author_Institution :
Dept. of Phys., Yamagata Univ., Japan
Abstract :
A new type of proportional counter utilizing a capillary plate with the capability of fine position resolution and high gas gain has been discovered. It consists of a bundle of fine glass capillaries with electrodes on both the inlet and the outlet. The capillaries are 100 μm in diameter and 800 μm in length and gas multiplication was found to occur in each capillary with an applied voltage between the inlet and outlet. The proportional counter was found to operate up to a gain of 104 at gas pressures of 0.5, 0.75, 1 atm and had an energy resolution of 20.8% for 5.9 keV X-rays at a gas gain of 2000. Its detection efficiency was comparable to a conventional single wire proportional counter
Keywords :
X-ray detection; position sensitive particle detectors; proportional counters; 0.5 to 1 atm; 100 mum; 5.9 keV; 800 mum; X-ray detection; capillary plate; detection efficiency; fine glass capillaries; fine position resolution; high gas gain; proportional counter; Counting circuits; Electrodes; Energy resolution; Glass; High-resolution imaging; Instruments; Surface resistance; Surface treatment; Voltage; X-rays;
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference Record, 1995., 1995 IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-3180-X
DOI :
10.1109/NSSMIC.1995.504217
