Phillips, Gerald C.2016-04-222016-04-221969Scott, Marion Leon. "A study of parallel plate proportional counters." (1969) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/90038">https://hdl.handle.net/1911/90038</a>.https://hdl.handle.net/1911/90038Current interest in a counter with fast response and thin transmission has led to the construction and study of a parallel plate proportional counter (PPPC). The PPPC was found to be essentially 100% efficient in the detection of 3 MeV protons. Gas gains near 104 were obtained in the pressure range between 177-355 torr. The rise time of the PPPC pulse for a plate separation of 5 mm was 35 nsec. The pulse height distribution indicates that zero-crossing timing should be used with the PPPC. A count rate of 103 counts/sec was discriminated from a background of 105 counts/sec by requiring coincidence with a scintillator. No degradation of the pulse height distribution was observed at this count rate.62 ppengCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.ThesisRICE1074reformatted digitalThesis Phys. 1969 Scott