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. Author manuscript; available in PMC: 2009 Jul 20.
Published in final edited form as: Radiat Meas. 2007 Jul 1;42(6):1256–1260. doi: 10.1016/j.radmeas.2007.05.038

Figure 2.

Figure 2

Scheme of the high-sensitivity OSL (HS-OSL) system tested to improve the light collection of the sample's luminescence. The system consists of: i) blue or green laser for optical stimulation, properly filtered in each case (GG-420 and OG-515, respectively), and defocusing lens, ii) light collection system composed of an ellipsoidal mirror (rhodium coated) and focusing lens to collect the maximum luminescence from the sample; and iii) detection optics composed of a UV transmitting (Hoya U-340 filter) to cut the stimulation wavelength and a PMT (Electron Tubes, model 9235QB).