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Energy Loss Measurement in a MWPC

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Publication Date
Identifiers
DOI: 10.1016/0029-554X(78)90696-1
OAI: oai:inspirehep.net:136574
Source
INSPIRE-HEP
Keywords
  • Instrumentation
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Abstract

Experimental results on the influence of angle and cell geometry on pulse height measurements in a multiwire proportional chamber (MWPC) are presented. Two track orientations are mainly considered: (a) tracks parallel to the wire plane and (b) tracks traversing the gap with one wire touched. In case (a), the positive induced pulse effect is analyzed: pulse heights have to be corrected by factors of 1.3–1.7 and wire inefficiency can be found up to 20%, depending on the cell geometry. The saturation effect starts earlier in case (a), but the influence of the angle between track and wire when approaching 90° is moderate. On the contrary, this influence is very effective in case (b). A detailed study of this phenomenon is then presented with a description of possible mechanisms involved.

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