864 research outputs found
A Monte Carlo program to design a transition radiation detector
No full textAMonteCarloprogram to designatransition radiator detector is described. The program provides the possibility to calculate the X-ray yield from radiators of different materials and structures, and analyzes the transitionradiation energy release in various gaseous detectors
A fast transition radiation detector for high-energy particles selection and triggering
No full textIn this paper we exploit the capability of a transition radiation detector to select different mass particles in a high-energy unseparated beam and to provide a prompt identification signal that can be used as a first level trigger for the physical event acquisition. Various studies on prototypes and measurements on electron/hadron test beams at CERN and BNL are presented: on the basis of the results obtained we show that we can promptly separate electrons from pions starting from 1 GeV/c momentum and we discuss about the possibility to distinguish as well pions from protons in the hundred GeV/c range of momentum at the level of a few percent of particle mis-identification. (C) 2000 Elsevier Science B.V. All rights reserved
A fast transition radiation detector for first-level triggering
No full textWe have designed and tested a transition radiation detector able to select different mass particles in a high-energy unseparated beam and to provide a prompt identification signal that can be used as a first-level trigger for the physical event acquisition. A measurement on electron/hadron test beam at CERN is presented: on the basis of the results obtained we show that we can promptly separate electrons from pions starting from 1 GeV/c momentum and we discuss about the possibility to distinguish as well pions from protons in the hundred GeV/c range of momentum at the level of a few percent of particle mis-identification. (C) 2001 Elsevier Science B.V. All rights reserved
A high-precision drift straw tube counter for particle tracking for accelerator and space experiments
No full textWe have designed and tested a straw tube detector prototype to investigate the possibility to operate a full-size device in sealed mode with extremely reduced gas leaks in accelerator experiments and astroparticle physics researches in outer space. In order to acheive a high spatial resolution we tested a "cool"-gas-based mixture, namely, argon-carbon dioxide at atmospheric pressure. In our tests, running the straw tube counter in drift mode with properly designed front-end electronics, we obtained a single-tube spatial resolution of the order of 30 mu m. (C) 1998 Elsevier Science B.V. All rights reserved
A DIRECT MEASUREMENT OF THE ENERGY-SPECTRUM OF COSMIC-RAY MUONS IN THE MONT-BLANC UNDERGROUND LABORATORY
No full text
Particle identification by means of channeling radiation in high collimated beams
No full textThe channeling radiation is emitted by fast charged particles crossing a crystal target in a direction nearly parallel to the crystal axis or planar directions. The incident particles are trapped in the potential wells due to the crystal lattice, resulting in a coherence effect in the emitted radiation. Since the total energy of the emitted radiation depends on the Lorentz factor as gamma(2), channeling radiation can be applied to discriminate between different particles with the same momentum in a collimated beam. To study this application of the channeling radiation, we have performed a beam test campaign at the CERN PS-T9 and SPS-H4 facilities using a 500 mu m thick 110 silicon crystal. A NaI calorimeter has been used to detect the channeling gamma-rays produced in the crystal. The electron (positron) pion identification performance has been studied. The preliminary results will be shown and the perspectives will be discussed. (C) 2009 Elsevier BM. All rights reserved
A fast transition radiation detector for first-level triggering
No full textWe have designed and tested a transition radiation detector able to select different mass particles in a high-energy unseparated beam and to provide a prompt identification signal that can be used as a first-level trigger for the physical event acqui A measurement on an electron/hadron test beam at CERN is presented: on the basis of the results obtained we show that we can promptly separate electrons from pions starting from 1 GeV/c momentum and we discuss about the possibility to distinguish hundred GeV/c range of momentum at the level of a few percent of particle mis-identification. (3 refs)
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