Title :
Development of the wave-shifter fiber readout for SIGHT
Author :
Wilkerson, J. ; Edberg, T.K. ; Hurley, K. ; Lin, R.P. ; Parsons, A. ; Sadoulet, B. ; Weiss, S. ; Smith, G.
Author_Institution :
California Univ., Berkeley, CA, USA
Abstract :
The Scintillation Imaging Gas-filled Hard X-ray Telescope (SIGHT) is a balloon-borne telescope with a planned first flight in fall 1993; the telescope will image X-rays in the 35-300 keV range. The heart of the telescope is a high-pressure xenon gas scintillation drift chamber (GSDC) which combines gas scintillation with the time projection concept. The wave-shifter fiber readout for the GSDC is described. The authors present results of light attenuation studies and technical details of handling the fibers in a high-pressure environment. Techniques for coupling optical fibers to photomultiplier tubes in a manner that increases both the phototube quantum efficiency and the response uniformity are detailed.<>
Keywords :
X-ray astronomy; X-ray detection and measurement; astronomical telescopes; digital readout; optical couplers; optical fibres; optical losses; photomultipliers; position sensitive particle detectors; scintillation counters; 35 to 300 keV; SIGHT; Scintillation Imaging Gas-filled Hard X-ray Telescope; Xe; balloon-borne telescope; coupling; high pressure Xe gas scintillation drift chamber; high-pressure environment; light attenuation; optical fibers; photomultiplier tubes; phototube quantum efficiency; response uniformity; time projection; wave-shifter fiber readout; Heart; Optical attenuators; Optical coupling; Optical fibers; Optical imaging; Photoelectricity; Photomultipliers; Telescopes; X-ray imaging; Xenon;
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference, 1991., Conference Record of the 1991 IEEE
Conference_Location :
Santa Fe, NM, USA
Print_ISBN :
0-7803-0513-2
DOI :
10.1109/NSSMIC.1991.259103
