Published December 1, 1986 | Version v1
Journal article

Studies of wire gain and track distortion near the sector edges of the ALEPH time projection chamber

  • 1. Scuola Normale Superiore, Pisa (Italy)
  • 2. Istituto Nazionale di Fisica Nucleare, Pisa (Italy)
  • 3. Wisconsin Univ., Madison (USA). Dept. of Physics
  • 4. Max-Planck-Institut fuer Physik und Astrophysik, Muenchen (Germany, F.R.)
  • 5. Istituto Nazionale di Fisica Nucleare, Trieste (Italy)
  • 6. Trieste Univ. (Italy). Dipartimento di Fisica
  • 7. European Organization for Nuclear Research, Geneva (Switzerland)
  • 8. Mainz Univ. (Germany, F.R.). Inst. fuer Physik

Description

The materials used to hold the wires at the sector edges in a large Time Projection Chamber (TPC) introduce distortions of the electric drift field near those edges. These distortions degrade tracking information and sometimes cause large changes in wire gain near the edge. We have studied these two problems for the ALEPH TPC and have found that both can be greatly reduced by the addition of two field correction strips held at appropriate voltages. (orig.)

Additional details

Publishing Information

Journal Title
Nucl. Instrum. Methods Phys. Res., Sect. A
Journal Volume
252
Journal Issue
2/3
Series
Nucl. Instrum. Methods Phys. Res., Sect. A.
Journal Page Range
399-402
ISSN
0168-9002
CODEN
NIMAE

Conference

Title
Wire chambers - recent trends and alternative techniques.
Acronym
4. international wirechamber conference
Dates
25-28 Feb 1986.
Place
Vienna (Austria).

INIS

Country of Publication
Netherlands
Country of Input or Organization
Netherlands
INIS RN
18028824
Subject category
S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
CORRECTIONS; DISTURBANCES; DRIFT CHAMBERS; ELECTRIC FIELDS; INHOMOGENEOUS FIELDS; LEP STORAGE RINGS; PARTICLE TRACKS; PULSES; TOWNSEND DISCHARGE; WIRES
Descriptors DEC
ELECTRIC DISCHARGES; MEASURING INSTRUMENTS; MULTIWIRE PROPORTIONAL CHAMBER; PROPORTIONAL COUNTERS; RADIATION DETECTORS; STORAGE RINGS

Optional Information

Contract/Grant/Project number
Contract DE-AC03-76SF00098