R. Mount
California Institute of Technology
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Featured researches published by R. Mount.
Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 1989
H. Ma; R. Mount; H. B. Newman; F. Roeber; R. Y. Zhu; H. Akbari; C.Y. Chien; A. Pevsner; R. Hamm
Abstract A new calibration technique based on radiative capture of protons from an RFQ accelerator in a lithium target, which makes use of the resultant high intensity flux of 17.6 MeV photons, has been developed and tested. The technique is capable of calibrating the thousands of BGO crystals in the L3 electromagnetic calorimeter at once, with an absolute accuracy of better than 1% in 1–2 h. Systematic errors in the calibration, which have been studied earlier through Monte Carlo simulations, have been experimentally proven to be small and calculable, and are expected to be much less than 1%. When installed in the L3 experiment at LEP, this system will help ensure that the high resolution of the L3 electromagnetic calorimeter is maintained during running.
Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 1985
J.A. Bakken; Luciano Barone; D. Braun; M. Caillat; C. Dionisi; C. Doré; H. Elmamouni; F. Ferroni; G.L. Grazer; J.T. He; R. Herbiet; B. Ille; P. Lecomte; E. Longo; P. Loverre; Y.S. Lu; J.P. Martin; U. Micke; R. Mount; P.A. Piroué; H.G. Sander; D. Schmitz; M. Schneegans; D.P. Stickland; R.L. Sumner; K.L. Tung; E. Valente; M. Vivargent
Abstract A calorimeter of 25 bismuth germanate (BGO) crystals equipped with silicon photodiode readout has been tested at the CERN SPS in the energy range 1–50 GeV. The response for electrons has been shown to be linear in this energy range and the rms resolution obtained ( σ E E ) is approximately 1%, for E > 4 GeV. The electron/pion separation was found to be better than 1:500 in the energy range 1–20 GeV. Data on lateral and longitudinal shower development were compared with the results of a Monte Carlo simulation using the SLAC-EGS program and found to be in good agreement.
Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 1991
B. Adeva; P. Bagnaia; S. Banerjee; L. Barone; D. Boutigny; F. Bruyant; P. Cardenal; N. Colino; E. Gonzalez; M. Guanziroli; Y. Karyotakis; F.L. Linde; R. Mount; E. Nagy; L. Niessen; J. Perrier; M. Pieri; J. Rose; S. Shevchenko; A.A. Syed; I. Vorobiev; Y.F. Wang
Abstract The database system developed for the L3 experiment at the CERN large electron-positron (LEP) collider is described. The solution chosen has two components: a FORTRAN package (DBL3) and a system of distributed servers and data (L3DBSM). DBL3 provides basic database functions supplemented by facilities specific to high-energy physics experiments. The L3DBSM system, operational since the start of LEP data taking, has handled efficiently several hundred Mbytes of data over three different systems (VAX/VMS, IBM VM/CMS, Apollo Aegis SR10.x) and at eight different sites.
