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Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 1991
A. Andresen; A. Bamberger; J. Hartmann; W. Vogel; U. Holm; E. Hilger; U. Kötz; G. Drews; R. Hamatsu; J. K. Mayer; H. Uijterwaal; J.F. Martin; D. Schäcke; J. Krüger; D. J. Gilkinson; S. Ritz; T. A. Romanowski; S. Yamada; G. Cases; M. Brkic; R. Klanner; U. Behrens; T. Tsurugai; L. Hagge; H. Kammerlocher; A. Bargende; F. Barreiro; C. Youngman; J. Dawson; G. G. Stairs
Abstract The forward and rear calorimeters of the ZEUS experiment are made of 48 modules with maximum active dimensions of 4.6 m height, 0.2 m width, 7 λ depth and maximum weight of 12 t. It consists of 1 X 0 uranium plates interleaved with plastic scintillator tiles read out via wavelength shifters and photomultipliers. The mechanical construction, the achieved tolerances as well as the optical and electronics readout are described. Ten of these modules have been tested with electrons, hadrons and muons in the momentum range 15–100 GeV/ c . Results on resolution, uniformity and calibration are presented. Our main result is the achieved calibration accuracy of about 1% obtained by using the signal from the uranium radioactivity.
