Crha Jan, Vila-Comamala Joan, Lehmann Eberhard, David Christian, Trtik Pavel
Laboratory for Neutron Scattering and Imaging, Paul Scherrer Institut, Villigen PSI, CH, 5232, Switzerland.
Faculty of Civil Engineering, Czech Technical University, 166 29, Prague, Czech Republic.
MethodsX. 2018 Dec 17;6:107-114. doi: 10.1016/j.mex.2018.12.005. eCollection 2019.
This paper reports on light yield enhancement of terbium-doped gadolinium oxysulfide based scintillator screens achieved by coating their substrates with thin layers of a high density and high atomic number material. For this purpose, iridium was chosen and layers of various thicknesses were applied by atomic layer deposition (ALD). We assessed newly developed scintillator screens for neutron absorption, light yield and spatial resolution and compared them to previously used non-iridium-coated scintillator screens. The addition of the iridium layer resulted in 65 % light yield enhancement in comparison to uncoated scintillator screens while the spatial resolution and absorption power remained unchanged. Highlights •65 % light yield enhancement of the scintillator light output with preservation of the spatial resolution•Use of atomic layer deposition for nanoengineering of the neutron sensitive scintillator screens.
本文报道了通过在基于掺铽硫氧化钆闪烁体屏幕的基板上涂覆高密度和高原子序数材料的薄层来提高其光产额。为此，选择了铱，并通过原子层沉积（ALD）施加了不同厚度的层。我们评估了新开发的闪烁体屏幕的中子吸收、光产额和空间分辨率，并将它们与以前使用的未涂铱闪烁体屏幕进行了比较。与未涂覆的闪烁体屏幕相比，铱层的添加使光产额提高了65%，而空间分辨率和吸收能力保持不变。要点：•闪烁体光输出的光产额提高65%，同时保持空间分辨率•使用原子层沉积对中子敏感闪烁体屏幕进行纳米工程。
