The monitoring system for the aerogel Cherenkov counter of the BELLE detector

Preprint

27 March 1998

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ex/9803027

Abstract

We report on a design and performances of a monitoring system developed for the aerogel Cherenkov counters (ACC) of the BELLE detector. The system consists of blue LEDs, a diffuser box, and optical distributors which distribute the LED light to the ACC modules. The employed LED (NSPB series) has been observed to have high reliability on the long term stability and the temprature dependence. The diffuser box is employed to reduce the intrinsic non-uniformity of the LED light intensity. The overall performances of the present monitoring system on uniformity and intensity of the light output have been found to satisfy all the requirements for the monitoring.

Keywords

AEROGEL CHERENKOV COUNTER
CHERENKOV COUNTERS
BELLE DETECTOR
DIFFUSER BOX
RELIABILITY

All Related Versions

Version 1, 1998-03-27, ArXiv
Published version: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 413 (2-3), 201.

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