نتایج جستجو برای: pixelated crystal

تعداد نتایج: 159533  

2012
Jae Cheon Kim Stephen E. Anderson Willy Kaye Feng Zhang Yuefeng Zhu Sonal Joshi Kaye Zhong He

The charge sharing effect in pixelated CdZnTe (CZT) detectors with a common anode steering grid has been studied. The impact on energy resolution of weighting potential cross-talk and ballistic deficit due to cathode signal shaping has been investigated. A detailed system modeling package considering charge induction, electronic noise, pulse shaping, and ASIC triggering procedures has been deve...

2012
William R. Kaye Timothy E. Chupp Andy Boucher Hao Yang

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2016
Son Trinh-Van Youngoo Yang Kang-Yoon Lee Keum-Cheol Hwang

The design of a wideband circularly polarized pixelated dielectric resonator antenna using a real-coded genetic algorithm (GA) is presented for far-field wireless power transfer applications. The antenna consists of a dielectric resonator (DR) which is discretized into 8 × 8 grid DR bars. The real-coded GA is utilized to estimate the optimal heights of the 64 DR bars to realize circular polariz...

Journal: :The International Review of Research in Open and Distributed Learning 2015

Journal: :Acta Crystallographica Section A Foundations and Advances 2017

Journal: :Journal of Electromagnetic Waves and Applications 2021

Terahertz metasurfaces with pixelated meta-atoms were designed for linear-polarization conversion and absorption. The differences between the two functionalities emerged from number arrangement of metal-dielectric combos patching some but not necessarily every pixel each meta-atom. A a meta-atom 3×3 pixels yielded polarization ratio (PCR) >0.9 over 10.20–16.08 THz band, whereas another absorpta...

Journal: :Ultramicroscopy 2010
A Menzel C M Kewish P Kraft B Henrich K Jefimovs J Vila-Comamala C David M Dierolf P Thibault F Pfeiffer O Bunk

Scanning transmission X-ray microscopy (STXM) is a powerful imaging technique, in which a small X-ray probe is raster scanned across a specimen. Complete knowledge of the complex-valued transmission function of the specimen can be gained using detection schemes whose every-day use, however, is often hindered by the need of specialized configured detectors or by slow or noisy readout of area det...

2003
James E. Baciak Zhong He

HgI2 detectors fabricated with pixelated anodes were tested as potential room temperature spectrometers. Spectra were obtained with 5 and 10mm thick devices, and their results were compared. The 5mm thick devices showed some effect of the anode weighting potential, while the 10mm thick devices showed the effects of charge diffusion/sharing and electron trapping. A resolution near 1.4% FWHM usin...

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