Frequency characteristics of images measured on the VolumeScope scanning device

V. N. Vasiliev; M. Yu. Zaytsev

doi:10.1117/12.637992

6 December 2006 Frequency characteristics of images measured on the VolumeScope scanning device

V. N. Vasiliev, M. Yu. Zaytsev

Proceedings Volume 5943, X-ray and Neutron Capillary Optics II; 59430V (2006) https://doi.org/10.1117/12.637992
Event: X-ray and Neutron Capillary Optics II, 2004, Zvenigorod, Russian Federation

Abstract

The modulation transfer function was determined on the VolumeScope, a prototype X-ray Compton scatter tomographic scanner. The linear spread function of the device was measured independently along each coordinate axis with a 0.3 mm aluminum foil slightly angled with respect to the voxel grid. A technique of the presampled MTF generation was used to increase a sampling frequency of the data and reduce a statistical noise. The LSFs and MTFs along three coordinate axes are presented. The FWHMs of the LSF peaks are 2.50, 2.3 1 and 3.72 mm along the axes X, Y and Z respectively. The MTF cutoff frequencies are 0.45,0.50 and 0.35 cycle/mmrespectively.

Citation Download Citation

V. N. Vasiliev and M. Yu. Zaytsev "Frequency characteristics of images measured on the VolumeScope scanning device", Proc. SPIE 5943, X-ray and Neutron Capillary Optics II, 59430V (6 December 2006); https://doi.org/10.1117/12.637992

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