Title :
LED calibration system for a quartz fiber calorimeter
Author :
Cohn, H.O. ; Berridge, S. ; Bugg, W.M. ; Efremenko, Yu ; Kamyshkov, Y.U.
Author_Institution :
Tennessee Univ., Knoxville, TN, USA
fDate :
6/1/1997 12:00:00 AM
Abstract :
We discuss the performance of a light calibration system for multi-PMT arrays. Seven blue high-light-yield LEDs are focused on to a bundle of optical quartz fibers to provide a signal to each PMT in the array. The calibration system was developed for an electro-magnetic quartz-fiber calorimeter with 25 PMT readout and can deliver a light pulse signal equivalent to ~104 photoelectrons via a single fiber within ~50 ns time. Mechanical design, pulse shape and duration, light yield, and uniformity are discussed
Keywords :
calibration; calorimeters; fibre optic sensors; light emitting diodes; photomultipliers; quartz; solid scintillation detectors; LED calibration system; blue high-light-yield LEDs; electro-magnetic quartz-fiber calorimeter; light calibration system; light pulse signal; multi-PMT arrays; optical quartz fibers; quartz fiber calorimeter; Calibration; Light emitting diodes; Light scattering; Optical arrays; Optical buffering; Optical fiber cables; Optical fiber polarization; Optical fiber testing; Optical pulse shaping; Pulse shaping methods;
Journal_Title :
Nuclear Science, IEEE Transactions on
