J. Xu
Boston University
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Publication
Featured researches published by J. Xu.
Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 1995
M. Acciarri; A. Adam; O. Adriani; S. Ahlen; J. Alcaraz; G. Ambrosi; H. Andersson; V. Andreev; E. Babucci; L. Baksay; A. Baschirotto; R. Battiston; A. Bay; Gv.L. Bencze; B. Bertucci; M. Biasini; G. M. Bilei; G. J. Bobbink; M. Bosetti; V. Brigljevic; M. L. Brooks; W.J. Burger; J. Busenitz; C. Camps; M. Caria; G. Castellini; B. Checcucci; A. Chen; E. Choumilov; V. Choutko
Abstract The status of the Silicon Microvertex Detector (SMD) and its installation into the LEP-L3 experiment are presented, highlighting novel features and sophisticated techniques. Preliminary results based on 1993 data are given and compared with Monte Carlo predictions, to understand the detector performances and its tracking capabilities.
Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 1996
S. Ahlen; J. Goldstein; A. Marin; J. Xu; B. Zhou; M. Capell; S. Wu
Abstract A radiation monitoring system for the L3 experiment at the Large Electron Positron (LEP) collider is described. This system was installed in the L3 detector in April 1993. It provides information on the instantaneous and integrated radiation dose in the vicinity of the L3 silicon microvertex detector and time expansion chamber, and since April 1994 it has also provided trigger signals for the LEP beam dump in the case of large instantaneous dose rates in the L3 central tracking region.
Nuclear Physics B (Proceedings Supplements) | 1995
M. Acciarri; A. Adam; O. Adriani; S. P. Ahlen; J. Alcaraz; G. Ambrosi; V. Andreev; E. Babucci; L. Baksay; A. Baschirotto; R. Battiston; A. Bay; Gy.L. Bencze; B. Bertucci; M. Biasini; G. M. Bilei; G. J. Bobbink; M. L. Brooks; W.J. Burger; J. Busenitz; C. Camps; M. Caria; G. Castellini; R. Castello; B. Checcucci; A. Chen; E. Choumilov; V. Choutko; T.E. Coan; V. Commichau
The 1994 running experience with the L3 Silicon Microvertex Detector is described; in particular we report on the detector performances observed during the year (namely the DAQ and detection efficiency and the signal to noise ratio) and on the reduction of the noise affecting the detector.
