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Content Provider | IEEE Xplore Digital Library |
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Author | Perrot, A.-L. |
Copyright Year | 2000 |
Description | Author affiliation: Lausanne Univ., Switzerland (Perrot, A.-L.) |
Abstract | LHC luminosity will reach 10/sup 34/ cm/sup -2/ s/sup -1/ but special runs at 10/sup 28/ cm/sup -2/ s/sup -1/ are foreseen. Thus a luminosity monitor must have a dynamic range of six orders of magnitude. A good tolerance to radiation is also required. A detector using both ionisation and secondary emission techniques has been studied in this context. Its design is based on monitors used previously at the CERN PS and SPS. Special attention was devoted to minimise leakage currents. Linearity in both Secondary Emission Counter (SEC) and Ionisation Chamber (IC) modes has been tested from /spl sim/10/sup 4/ incident particles to /spl sim/10/sup 8/ incident particles. SEC is linear above /spl sim/5.10/sup 6/ incident particles while IC is linear over the full studied range. However, because of the radiation environment at LHC, the SEC mode is much preferred at high intensity. A solution actually foreseen is to switch from IC to SEC mode when the intensity is around 5.10/sup 6/ incident particles per second corresponding to an LHC luminosity of 6.10/sup 30/ cm/sup -2/ s/sup -1/. |
File Size | 495434 |
File Format | |
ISBN | 0780365038 |
ISSN | 10823654 |
DOI | 10.1109/NSSMIC.2000.949096 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 2000-10-15 |
Publisher Place | France |
Access Restriction | Subscribed |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | Large Hadron Collider Electrons Dynamic range Radiation detectors Ionization chambers Switches Voltage Cathodes Anodes Radiation monitoring |
Content Type | Text |
Resource Type | Article |
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