Stability of spectrometric characteristics of CsI:Tl detectors depending on the surface treatment method

Effect of Humidity on Scintillation Performance in Na and Tl Activated CsI Crystals

“…[3] The deterioration of its performance was first reported by Kerrigan [4] who discovered the development of an amorphous layer on the crystal surface and correlated its thickness to the counting efficiency of the detector. Vydai et al [5] [6] and Kudin [7], studied the scintillation characteristics of CsI(Tl) crystals and attributed the performance deterioration of these detectors to the penetration of quenching impurities at the surface layer due to damages induced in the grinding and polishing processes. Recent studies [8]- [10] on Na activated CsI detectors indicate the detection efficiency of these crystals degrade quite fast in a high humidity condition (80% RH).…”

Sb3+–doped 0D Cs3GdCl6 microcrystals with a near-unity photoluminescence quantum yield and high thermal quenching resistance for light-emitting application

“…Nevertheless, future efforts are still needed to improve the long-term stability of the dehydrated Cs 3 GdCl 6 :Sb 3+ MCs through surface engineering or encapsulation, as done for commercial scintillators such as CsI:Tl + and LaBr 3 :Ce 3+ . [72][73][74]…”