Right-left ambiguity resolution in a time expansion chamber

A. Böhm, V. Commichau, H. Fesefeldt, P. Göttlicher, T. Hamacher, K. Hangarter, U. Herten, C. Neyer, P. Schmitz, R. Schulte, T. Spickermann, M. Tonutti, M. Bourquin, M. Nusbaumer, J. Perrier, N. Produit, K. Deiters, R. Leiste, W. Lohmann, W. D. NowakU. Röser, M. Sachwitz, H. Anderhub, M. Dhina, I. Dimitrović, J. Fehlmann, H. P.v. Gunten, H. Hofer, R. Holzreuter, X. Lue, M. Macdermott, A. Pichler, M. Pohl, D. Ren, G. Viertel, L. Zehnder

Research output: Contribution to journalArticlepeer-review

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Abstract

In a Time Expansion Chamber two high resolution drift volumes on both sides of a small detection gap are separated from the gap by a fine grid wire plane. The charge asymmetry induced on the grid wires in the vicinity of an anode is used to resolve the right-left ambiguity. It is the only method which is fast enough for a first level trigger and which does not deteriorate the necessary field homogeneity.

Original languageEnglish
Pages (from-to)471-475
Number of pages5
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume273
Issue number2-3
DOIs
StatePublished - 15 Dec 1988
Externally publishedYes

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