Properties of a novel radiophotoluminescent readout system using a cw modulated UV laser diode and phase-sensitive technique
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We have proposed and constructed a novel readout system for measuring a dose-dependent radiophotoluminescence (RPL) signal of a silver-activated phosphate glass dosimeter. The present reader consists of a modulated continuous-wave (cw) ultraviolet (UV) laser diode at 375 nm as an excitation and a phase-sensitive technique using a lock-in amplifier. Preliminary results using a home-made reader are compared with those of the conventional technique based on a combination of a pulsed UV N2 laser excitation at 337 nm and a photon counting system. © 2011 Elsevier Ltd. All rights reserved.
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