Beam loss monitoring system for the LHC
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5 pages
Part of Proceedings, 2005 IEEE Nuclear Science Symposium and Medical Imaging Conference : El Conquistador Resort, Puerto Rico, October 23-29, 2005, 1052-1056
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- Published: 2005
Report number:
- CERN-AB-2006-009
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Abstract: (IEEE)
One of the most critical elements for the protection of CERN's Large Hadron Collider (LHC) is its beam loss monitoring (BLM) system. It must prevent the superconducting magnets from quenching and protect the machine components from damages, as a result of critical beam losses. By measuring the loss pattern, the BLM system helps to identify the loss mechanism. Special monitors will be used for the setup and control of the collimators. The specification for the BLM system includes a very high reliability (tolerable failure rate of 10/sup -7/ per hour) and a high dynamic range of 10/sup 8/ (10/sup 13/ at certain locations) of the particle fluencies to be measured. In addition, a wide range of integration times (40 /spl mu/s to 84 s) and a fast (one turn) trigger generation for the dump signal are required. This paper describes the complete design of the BLM system, including the monitor types (ionization chambers and secondary emission monitors), the design of the analogue and digital readout electronics as well as the data links and the trigger decision logic.- Monitoring
- Large Hadron Collider
- Protection
- Colliding beam devices
- Superconducting magnets
- Machine components
- Loss measurement
- Collimators
- Dynamic range
- Particle measurements
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