D. J. Gilkinson
McGill University
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Featured researches published by D. J. Gilkinson.
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.
Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 1990
A. Andresen; A. Bamberger; U. Behrens; J. Crittenden; A. Caldwell; J. W. Dawson; J. Engelen; B. Frisken; D. J. Gilkinson; R. Hamatsu; D. Hanna; D. Hasell; L. Hervás; U. Holm; A. Fürtjes; R. Klanner; P. Kooijman; U. Kötz; M. Krämer; J. Krüger; G. M. Levman; P. Malecki; J. F. Martin; J. W. Mitchell; P. M. Patel; M. Rohde; T. A. Romanowski; E. Ros; W. Sippach; D. Schäcke
Abstract We have exposed a sandwich calorimeter, consisting of 3.3 mm thick uranium pnterleaved with 2.6 mm thick scintillator tiles, to positive and negative electrons and pions and to protons in the momentum range of 0.5 to 10 GeV/c. We find that e/h is about 1 above 3 GeV/c, but decreases significantly for lower momenta. This ratio is the same for positive and negative pions and also for pions and protons of the same kinetic energy.
Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 1992
U. Behrens; D. J. Gilkinson; G. Gloth; D. Hanna; L.W. Hung; H. Kammerlocher; B. Krebs; R. Krüger; F. Meyer; K. Wick
Abstract We present the motivation for and the design of a mobile 60 Co source system used as part of the quality control and calibration monitoring scheme for the ZEUS calorimeters. A 2 mCi 60 Co source is pushed by a computer controlled drive mechanism through guide tubes which extend into the calorimeter. Measurements of induced photocurrents as a function of the source position allow checks on the calorimeter response. We present results obtained during the initial scan of all 916 towers of the forward and rear calorimeter modules.
