The PS 170 Central Detector

  • Fabrizio Gasparini
Part of the Ettore Majorana International Science Series book series (EMISS, volume 17)


The apparatus for LEAR experiment PS 170 has been described in another paper: it has a cylindrical symmetry around a central region, 40 cm high and with a 50 cm radius, where a C magnet establishes a 1.5 T magnetic field. The detector has been designed to measure two electrons final states from the reactions
$$\overline p {p^\to }{e^+}{e^-}$$
$$\overline p{p^\to}\mathop{{V_o}}\limits_{\left|{ \to {e^+}{e^-}}\right.}+neutrals$$
The p̄ momentum ranges between 300 MeV/c and 2 GeV/c.


Time Projection Chamber Central Detector Drift Length Type Chamber Sense Wire 


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  1. 1.
    G. Bardin et al., Proceedings of this Workshop.Google Scholar
  2. 2.
    D. Nygren, “The time projection chamber. A new 4π detector for charged particles”. 1974 PEP Summer Study (PEP 137). D. Nygren, “The time projection chamber 1975”, PEP note 198.Google Scholar
  3. 3.
    A. Breskin et al., “High accuracy, bidimensional read-out of proportional chambers with short resolution time” NIM 143:29 (1977).Google Scholar
  4. 4.
    D. Fancher and A. Schaffer, “Experimental study of the signals from a segmented cathode drift chamber”, LBL 8327 (1978).Google Scholar
  5. 5.
    B. Hallgren and H. Verweij, IEEE Nuclear Science Symposium, San Francisco, October 1979.Google Scholar

Copyright information

© Plenum Press, New York 1984

Authors and Affiliations

  • Fabrizio Gasparini
    • 1
    • 2
  1. 1.Istituto di Fisica dell’UniversitàPadovaItaly
  2. 2.Istituto Nazionale di Fisica NuclearePadovaItaly

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