Title :
Small-size pulsed X-ray source for measurements of scintillator decay time constants
Author :
Rodnyi, P.A. ; Mikhrin, S.B. ; Mishin, A.N. ; Sidorenko, A.V.
Author_Institution :
St. Petersburg State Tech. Univ., Russia
Abstract :
A small-size short-pulsed X-ray source is described whose main components are a three-electrode X-ray tube operating at 30 kV and 0.5 A and a fast GaAs modulator connected coaxially to the tube grid. The ultimate parameters of the source are subnanosecond pulse duration and 100-kHz repetition pulse rate. The detection system allows the measurements to be carried out in the 200-800 nm spectral range over the time intervals from 0.5 ns to 50 /spl mu/s with resolution not worse than 0.1 ns. The decay time curves of an organic scintillator and CdI/sub 2/, Gd/sub 2/O/sub 2/S:Pr, and Cs/sub 2/NaCeCl/sub 6/ crystals are presented.
Keywords :
X-ray detection; X-ray production; X-ray tubes; cadmium compounds; caesium compounds; cerium compounds; gadolinium compounds; gallium arsenide; modulators; praseodymium; sodium compounds; solid scintillation detectors; 0.5 A; 0.5 ns to 50 mus; 100 kHz; 200 to 800 nm; 30 kV; CdI/sub 2/; Cs/sub 2/NaCeCl/sub 6/; GaAs; Gd/sub 2/O/sub 2/S:Pr; PMT; coaxial connections; decay time curves; detection system; detector crystals; luminescence kinetics; modulator; organic scintillator; photomultiplier tube; pulsed X-ray radiation; repetition pulse rate; resolution; scintillation properties; scintillator decay time constants; small-size pulsed X-ray source; spectral range; subnanosecond pulse duration; three-electrode X-ray tube; tube grid; Anodes; Circuits; Coaxial components; Crystallization; Gallium arsenide; Pulse measurements; Thyristors; Time measurement; Voltage; X-ray lasers;
Journal_Title :
Nuclear Science, IEEE Transactions on
