The CLEO II detector

Y. Kubota, J. K. Nelson, D. Perticone, R. Poling, S. Schrenk, M. S. Alam, Z. H. Bian, D. Chen, I. J. Kim, W. C. Li, X. C. Lou, B. Nemati, C. R. Sun, P. N. Wang, M. M. Zoeller, G. Crawford, R. Fulton, K. K. Gan, T. Jensen, H. KaganR. Kass, R. Malchow, F. Morrow, M. K. Sung, J. Whitmore, P. Wilson, F. Butler, X. Fu, G. Kalbfleisch, M. Lambrecht, P. Skubic, J. Snow, P. L. Wang, D. Bortoletto, D. N. Brown, W. Y. Chen, J. Dominick, R. L. McIlwain, D. H. Miller, M. Modesitt, E. I. Shibata, S. F. Schaffner, I. P.J. Shipsey, W. M. Yao, M. Battle, H. Kroha, K. Sparks, E. H. Thorndike, C. H. Wang, R. Stroynowski, M. Artuso, M. Goldberg, T. Haupt, R. Holmes, N. Horwitz, A. Jawahery, P. Lubrano, G. C. Moneti, Y. Rozen, P. Rubin, V. Sharma, T. Skwarnicki, S. Stone, M. Thulasidas, G. Zhu, S. E. Csorna, V. Jain, T. Letson, D. S. Akerib, B. Barish, M. Chadha, D. F. Cowen, G. Eigen, J. S. Miller, J. Urheim, A. J. Weinstein, R. J. Morrison, H. Nelson, J. Richman, H. Tajima, D. Schmidt, M. Witherell, A. Bean, I. Brock, M. Procario, M. Daoudi, W. T. Ford, D. R. Johnson, K. Lingel, M. Lohner, P. Rankin, J. G. Smith, J. Alexander, C. Bebek, K. Berkelman, D. Besson, E. Blucher, T. E. Browder, D. G. Cassel, E. Cheu, D. M. Coffman, R. DeSalvo, P. S. Drell, R. Ehrlich, R. S. Galik, M. Garcia-Sciveres, B. Geiser, M. G.D. Gilchriese, B. Gittelman, S. W. Gray, D. L. Hartill, B. K. Heltsley, K. Honschoid, C. Jones, J. Kandaswamy, N. Katayama, P. C. Kim, R. Kowalewski, D. L. Kreinick, G. S. Ludwig, J. Masui, J. Mevissen, N. B. Mistry, J. Mueller, R. Namjoshi, S. Nandi, C. R. Ng, E. Nordberg, C. O'Grady, J. R. Patterson, D. Peterson, M. Pisharody, D. Riley, M. Sapper, M. Selen, H. Worden, M. Worris, F. Würthwein, P. Avery, A. Freyberger, J. Rodriguez, J. Yelton, T. Bowcock, R. Giles, S. Henderson, K. Kinoshita, F. Pipkin, M. Saulnier, R. Wilson, J. Wolinski, D. Xiao, H. Yamamoto, A. J. Sadoff, R. Ammar, P. Baringer, D. Coppage, R. Davis, P. Haas, M. Kelly, N. Kwak, H. Lam, S. Ro

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Abstract

The new detector for data recording by the CLEO collaboration at the Cornell Electron Storage Ring is described. This detector has been designed to optimize studying e+ e- annihilation into hadronic matter at a total energy of 10 GeV. It consists of high precesion charged particle tracking chambers and an electromagnetic calorimeter together with systems for particle identification. The design of the detector and its performance over the first year and a half of operation are presented.

Original languageEnglish (US)
Pages (from-to)66-113
Number of pages48
JournalNuclear Inst. and Methods in Physics Research, A
Volume320
Issue number1-2
DOIs
StatePublished - Aug 15 1992

Bibliographical note

Funding Information:
State University . The SUM-circuit electronic cards and the associated crates were designed, constructed and tested at OSU . We thank C. Rush of OSU who was responsible for this work . The Harvard collaborators built the barrel time-of-flight counters and the associated readout electronics. The collaborators from SUNY Albany built the endcap time-of-flight counters. J. Blandino and J. McElaney of Harvard did the detailed barrel counter design work and supervised the construction, assembly, testing, and installing of the barrel time-of-flight counters in the CLEO II detector. J. Oliver of Harvard designed and built the high voltage supplies and the readout electronics for the entire time-of-flight system. The Syracuse University collaborators designed and built the muon identification system . L. Buda and J . Ennulat were responsible for the construction, assembly and testing of the 24 barrel + 8 endcap three-layer units at Syracuse University . Z . Sobolewski provided the hi voltage supply system and made the necessary modifications to the old CLEO d E/d .r electronic circuits so that the "streamer counters" could operate in proportional mode. He also came to the Cornell laboratory and helped with the nistallation and testing of the system. The coordination of the readout electronics of the entire CLEO II detector was carried out mainly by collaboration physicists at Cornell. However, much of the detailed design and construction was performed by J . Dobbins of Cornell . He provided the preamplifiers for the endcap time-of-flight counters, the preamplifiers and readout electronics for the tracking chambers, and much good advice for the calorimeter read-out . We thank Prof. B .D. McDaniel, former director of the Cornell Laboratory of Nuclear Physics, for his strong support for the design, development, and construction of the CLEO II detector. He also participated in the design and construction of the mechanical support of the CsI calorimeter . A major share of the cost of the intermediate drift chamber, (the VD), and the time-of-flight system was provided by the Department of Energy. The National Science Foundation provided the funds for building the rest of the CLEO II detector. We also acknowledge the financial support of the National Science Foundation and the Depart-ment of Energy for the institutional members of the CLEO Collaboration.

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