Abstract
A highly stable monitoring system based on blue and red light emitting diodes coupled to a distribution network comprised of optical fibers has been developed for an electromagnetic calorimeter that uses lead tungstate crystals readout with photomultiplier tubes. We report of the system prototype design and on the results of laboratory tests. Stability better than 0.1% (r.m.s.) has been achieved during one week of prototype operation.
Original language | English (US) |
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Pages (from-to) | 94-99 |
Number of pages | 6 |
Journal | Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment |
Volume | 556 |
Issue number | 1 |
DOIs | |
State | Published - Jan 1 2006 |
Bibliographical note
Funding Information:We thank the IHEP management for providing us infrastructure support. Special thanks to Fermilab for providing equipment for data acquisition. This work was partially supported by U.S. National Science Foundation and U.S. Department of Energy and the Russian Foundation for Basic Research grant 02-02-39008.
Keywords
- Calorimeter
- Energy calibration
- Lead tungstate
- Light emitting diode
- Monitoring system