The high-density multiwire drift chamber
نویسندگان
چکیده
منابع مشابه
The High-density Multiwire Drift Chamber
A multiwire propor t ional chamber , with a high-densi ty drift space at tached, has been developed as a posit ion-sensit ive detector for nonioniz ing radiat ion. A chamber with a 5 g /cm a d r i f t s p a c e , compris ing a l eadb i smuth matr ix o f 1 m m square holes on a 1.5 m m pi tch has been investigated. For 0.66 MeV pho tons a detection efficiency o f 5%, combined with a spatial reso...
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With the principle of the time expansion chamber and the additional measurement of the position of the avalanche along the circumference of the anode wire it is possible to reconstruct the spatial distribution of the primary ionization in space. A position resolution for minimum ionizing tracks of a 5 30 urn is expected. First tests and concepts for vertex detectors are presented.
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A. Tarantola1,2, M.Böhmer6, I. Fröhlich1, J. Hoffmann2, B. W. Kolb2, J. Michel1, C. Müntz1, M. Palka2,3, P. Skott2, H. Ströbele1, J. Stroth1,2, M. Traxler2, Y. Wang5, and J. Wüstenfeld4 1Institut für Kernphysik, Goethe-Universität, Frankfurt, Germany; 2GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt, Germany; 3Smoluchowski Institut of Physics, Jagiellonian University, Krakow, Pola...
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The central drift chamber for the BaBar detector at the PEP-II Bfactory at SLAC is a cylindrical chamber with a length of 280 cm and outer radius of 81 cm. It consists of 40 layers of small hexagonal cells arranged in 10 axial and stereo super-layers. In order to minimize multiple scattering, light materials are used for the mechanical structure, and the gas mixture is Helium based. The pulse-h...
متن کاملThe BaBar drift chamber project
The BaBar Drift Chamber is now under construction. We review its design, the progress in the construction of the components, the plan for assembly and stringing and we present test results obtained with a prototype exposed at SLAC to cosmic rays. We also report on projected dE/dx performance from beam tests done with a chamber with a different cell design. ( 1998 Published by Elsevier Science B...
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ژورنال
عنوان ژورنال: Nuclear Instruments and Methods
سال: 1975
ISSN: 0029-554X
DOI: 10.1016/0029-554x(75)90601-1