Light Yield Enhancement of 157-Gadolinium Oxysulfide Scintillator Screens for the High-Resolution Neutron Imaging

Open access
Date
2019Type
- Journal Article
Abstract
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. Show more
Permanent link
https://doi.org/10.3929/ethz-b-000315722Publication status
publishedExternal links
Journal / series
MethodsXVolume
Pages / Article No.
Publisher
ElsevierSubject
atomic layer deposition; gadolinium oxysulfide; iridium; neutron imaging; neutron microscope; scintillator screenMore
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