title: Highly absorbing gadolinium test device to characterize the performance of neutron imaging detector systems.
abstract: We report on the fabrication and application of a novel neutron imaging test device made of gadolinium. It is designed for a real time evaluation of the spatial resolution, resolution direction, and distortions of a neutron imaging detector system. Measurements of the spatial resolution of (6)LiF doped ZnS scintillator screens with different thicknesses and of imaging plates were performed. The obtained results are in good agreement with comparison measurements using the standard knife edge detection method.
authors.affiliation: Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland. christian.gruenzweig@psi.ch
authors.forename: C
authors.initials: C
authors.lastname: Grünzweig
authors.forename: G
authors.initials: G
authors.lastname: Frei
authors.forename: E
authors.initials: E
authors.lastname: Lehmann
authors.forename: G
authors.initials: G
authors.lastname: Kühne
authors.forename: C
authors.initials: C
authors.lastname: David
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis / Q000295:instrumentation* / Q000379:methods; D005682:Gadolinium / Q000737:chemistry*; D007089:Image Enhancement / Q000295:instrumentation* / Q000379:methods; D007090:Image Interpretation, Computer-Assisted / Q000295:instrumentation* / Q000379:methods; D009502:Neutrons; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014159:Transducers
chemical_list: D005682:Gadolinium