Results 141 to 150 of about 87,657 (169)
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[Thyroid scintigraphy with Fresnel zone plates].
Nuklearmedizin. Nuclear medicine, 1985Coded apertures supply a decoupling of resolution and sensitivity in scintigraphic imaging. The reconstructed images are focussed on different planes. The approach presented replaces the conventional collimator by three Fresnel zone plates in order to simulate a complex projection.
J, Meinke +2 more
openaire +1 more source
Focusing specification of cross-like Fresnel zone plate
Optik, 2015Arash Sabatyan, Jila Rafighdoost
exaly
Compact Folded Fresnel Zone Plate Lens Antenna for mm-Wave Communications
IEEE Antennas and Wireless Propagation Letters, 2018Mohammad Reza Dehghani Kodnoeih +4 more
semanticscholar +1 more source
Dual-Band Fresnel Zone Plate Antenna With Independently Steerable Beams
IEEE Transactions on Antennas and Propagation, 2018Huan Li +6 more
semanticscholar +1 more source
Axial intensity distribution behind a Fresnel zone plate
Optics and Laser Technology, 2005Yaoju Zhang
exaly