Distribution type detector using scintillation fibers

Details Distribution type detector using scintillation fibers Distribution type detector using scintillation fibers

1995-09-15

1997-10-07

Glick, Edward J.

Radiant energy

Invisible radiant energy responsive electric signalling

With or including a luminophor

250366, 250367, 250369, G01T 120, G01T 1208

Patent

active

056751516

ABSTRACT:
A distribution type detector comprises scintillation fibers identical in length to each other, an optical delay fiber having a refractive index substantially identical to those of cores and claddings of the scintillation fibers, photosensitive elements, preamplifiers, constant fraction discriminators, a time-to-pulse height converter, an analog-to-digital converter, and a multichannel pulse-height analyzer. A position where a radiation falls on its corresponding scintillation fiber, is detected based on a difference between time intervals necessary for propagation of optical pulses produced in the corresponding scintillation fiber by the radiation. Thus, even if the length of each scintillation fiber is increased, position resolution can be kept high and a measuring circuit system can be simplified.

REFERENCES:
patent: 3978337 (1976-08-01), Nickles et al.
"Measurement of Spatial Dose-Rate Distribution Using a Position Sensitive Detector", Emoto et al., KEK Proceedings, 94-7, pp. 119-125, Aug. 1994.
Fries et al., "Position Sensitive Fiber Readout", Nuclear Instruments & Methods in Physics Research, vol. 349, No. 1, pp. 197-203, Sep. 15, 1994.

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