Phillips, Gerald C.2016-04-222016-04-221972Plasek, Ronald Eugene. "A study of a multi-wire proportional counter for magnetic spectrograph focal plane detection." (1972) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/90354">https://hdl.handle.net/1911/90354</a>.https://hdl.handle.net/1911/90354A multi-wire proportional counter (MWPC) was designed and successfully tested along the focal plane of the Rice University 65 cm magnetic spectrograph. The MWPC, which utilized .002" diameter stainless steel wires, a .100" wire spacing, and a .250" gap length, had an active area of 1" x 12". Counter efficiency and spatial resolution were determined by comparing the MWPC to results obtained with a position-sensitive solid state detector. The MWPC was thus found to be at least 98% efficient in the detection of 6 MeV protons. The spatial resolution of about 3 mm was limited by the multiple scattering of the protons in the counter foils and gas.134 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.ThesisRICE1391reformatted digitalThesis Phys. 1972 Plasek