TL emission spectra measurements using a spectrometer coupled to the Risoe TL/OSL reader

Abstract

A high sensitivity spectrometer (Ocean Optics QE65 Pro) was coupled to the Risoe TL/OSL reader to measure TL emission spectra of four different dosimeters. This spectrometer is based on a Hamamatsu FFT-CCD detector with a 2-D arrangement of pixels (1044×64), which detects luminescence in a range of 200–950 nm. An optical fiber was used to guide the signal from the sample to the spectrometer. TL spectra from LiF, CaSO 4 :Dy, BeO and Al 2 O 3 :C detectors were obtained and they are presented in this work. The proposed detection system showed good response; spectra shape, in accordance with the literature, were obtained, validating the system. • A spectrometer based on a CCD detector was coupled to a TL/OSL reader via optical fiber. • TL emission spectra of well-known TL materials were measured. • The measured spectra showed the expected shapes; thus the system proved a good performance. • The set-up is very easy to use and it shows good potential to study new materials.