Compact Multiwire Proportional Chambers and Electronics for the Crystal Ball Detector

Author

Gaiser, J.E. ; Liberman, A.D. ; Rolfe, J. ; Beron, B.L. ; Bloom, E.D. ; Bulos, F. ; Hofstadter, R. ; Hughes, E.B. ; Kiesling, C. ; Kollman, W.D. ; Reilly, J. G O ; Partridge, R.A. ; Peck, C.W. ; Porter, F.C. ; Strauch, K. ; Tompkins, J.C.

Author_Institution

California Institute of Technology, Harvard University, Princeton University, Stanford Linear Accelerator Center and Stanford University Crystal Ball Collaboration

Volume

26

Issue

1

fYear

1979

Firstpage

173

Lastpage

180

Abstract

A double gap of cylindrical proportional chambers has been designed and built for use with a large solid angle, modular NaI(Tl) array (The Crystal Ball). The chambers are constructed of three coaxial foam-epoxy shells, covered with an aluminum-mylar laminate. One of the high voltage cathodes in each chamber has been photo-etched to produce a pattern of stripes and precise position measurements of tracks passing transverse to the chamber axis are found by pulse height analyzing the shaped and amplified induced strip signals. Performance of the chamber using both the strip signals and the sense wire readout is presented. The design of both the signal handling electronics and the digital portions of the systems is discussed.

Keywords

Cathodes; Coaxial components; Detectors; Laminates; Position measurement; Pulse amplifiers; Pulse measurements; Solids; Strips; Voltage;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/TNS.1979.4329629

Filename

4329629