TITLE

Radiation position-sensitive detector based on plastic scintillating fibers

AUTHOR(S)
Ikhlef, A.; Skowronek, M.
PUB. DATE
September 1993
SOURCE
Review of Scientific Instruments;Sep93, Vol. 64 Issue 9, p2566
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The applicability of plastic scintillation fibers as a radiation position detector is evaluated for low-energy x-ray irradiation. A continuous x-ray generator with a copper anode is used as a source radiating very intense lines: K[sub α2]=8.02 keV, K[sub α1] = 8.04 keV, K[sub β1] = 8.9 keV. A microchanneI intensified tube followed by a vidicon camera is used as the photodetector for scintillation light guided to both extremities of a fiber detector. A one-dimensional position-sensitive radiation detector is constructed as an application. The irradiation position is derived independently of the system operating conditions (gain, sensitivity, efficiency) with a relative error smaller than 4%. Using this device, the optical attenuation length is measured with a relative error less than 10%. The differences in the photon distribution at fiber terminating faces are discussed for light and for x-ray excitations with respect to their incidence angles.
ACCESSION #
9787612

 

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