| 摘要 |
<p>1526764 Ionization detectors LEYLAND STANFORD JR UNIVERSITY BOARD OF TRUSTEES 25 Nov 1975 [29 Nov 1974] 48435/75 Heading H1D A position-sensitive ionization detector comprises independent anode wires 53 arranged in an arcuate array with each wire on a radius centred at small source of radiation and arranged in a conductive envelope 92 which constitutes the cathode and is filled with xenon at above atmospheric pressure. Radiation is admitted through a thin nickel or stainless steel window 96. The product of the length of each anode wire and the xenon pressure should be 50 atmosphere-centimetres. The detector is intended for use in computed tomography scanners described in Specifications 1,526,763 and 1,526,765, see Division H4.</p> |
