THEORY GUIDE
10DEC05
COLLECTOR and PHOTOMULTIPLIER TUBE (PMT)
TG4825-1
Page
The COLLECTOR and the PMTs:
62 of 120
•
provide the collection of the blue light emitted from the PHOSPHOR SCREEN
•
measure the brightness of the blue light
•
change the measurement of brightness to digital format
analog
signal
PMT
(1 of 2)
BLUE FILTER
red laser light
blue light
PHOSPHOR SCREEN
H194_5009GC
LIGHT COLLECTOR
Optical