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Proceedings Paper

On The X-Ray Luminescence Of Phosphor Screens Under Fluoroscopy Conditions
Author(s): George E. Giakoumakis
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Paper Abstract

We report on the absolute efficiency of x-ray phosphor screens made of various materials commonly used in the x-ray applications (ZnCdS:Ag - Y2O2S:Tb Gd2O2S:Tb). All the measurements have been carried out under fluoroscopy conditions for tube voltages ranging from 50kV to 250kV and for screen weights ranging from 15mg/cm2 to 200mg/cm2. There is also, for comparison, a set of results concerning the behaviour of the screens under soft x-rays (20kV to 50kV) excitation. All the experimental results are discussed on the basis of a uniform screen model and analytical expressions are presented permitting the theoretical calculation of the absolute efficiency of the screens.

Paper Details

Date Published: 27 November 1989
PDF: 3 pages
Proc. SPIE 1140, X-Ray Instrumentation in Medicine and Biology, Plasma Physics, Astrophysics, and Synchrotron Radiation, (27 November 1989); doi: 10.1117/12.961832
Show Author Affiliations
George E. Giakoumakis, University of Ioannina (Greece)


Published in SPIE Proceedings Vol. 1140:
X-Ray Instrumentation in Medicine and Biology, Plasma Physics, Astrophysics, and Synchrotron Radiation

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