Spatial resolution limit study of a CCD camera and scintillator based neutron imaging system according to MTF determination and analysis.
Spatial resolution limit is a very important parameter of an imaging system that should be taken into consideration before examination of any object. The objectives of this work are the determination of a neutron imaging system's response in terms of spatial resolution. The proposed procedure is based on establishment of the Modulation Transfer Function (MTF). The imaging system being studied is based on a high sensitivity CCD neutron camera (2×10(-5)lx at f1.4). The neutron beam used is from the horizontal beam port (H.6) of the Algerian Es-Salam research reactor. Our contribution is on the MTF determination by proposing an accurate edge identification method and a line spread function undersampling problem-resolving procedure. These methods and procedure are integrated into a MatLab code. The methods, procedures and approaches proposed in this work are available for any other neutron imaging system and allow for judging the ability of a neutron imaging system to produce spatial (internal details) properties of any object under examination.
Nuclear Research Centre of Birine, Algeria. kharfifaycal@yahoo.com
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Kharfi
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Denden
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Bourenane
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Bitam
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Ali
D004867:Equipment Design; D019544:Equipment Failure Analysis; D015902:Gamma Cameras; D007090:Image Interpretation, Computer-Assisted / Q000295:instrumentation / Q000379:methods*; D009501:Neutron Activation Analysis / Q000295:instrumentation*; D015203:Reproducibility of Results; D012588:Scintillation Counting / Q000295:instrumentation*; D012680:Sensitivity and Specificity; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*