Sensitive Direct-Conversion X-Ray Detectors Formed by ZnO Nanowire Field Emitters and β-Ga2O3 Photoconductor Targets with Electron Bombardment Induced Photoconductivity Mechanism

2021 ◽  
Author(s):  
Jun Chen ◽  
Zhipeng Zhang ◽  
Manni Chen ◽  
Xinpeng Bai ◽  
Kai Wang ◽  
...  
Keyword(s):  
Direct Conversion ◽  
Electron Bombardment ◽  
Zno Nanowire ◽  
X Ray ◽  
Field Emitters

A double-sided radiating flat-panel X-ray source using ZnO nanowire field emitters

Vacuum ◽  
2017 ◽  
Vol 144 ◽  
pp. 266-271 ◽  
Author(s):  
Daokun Chen ◽  
Yuan Xu ◽  
Guofu Zhang ◽  
Zhipeng Zhang ◽  
Juncong She ◽  
...  
Keyword(s):  
Zno Nanowire ◽  
Flat Panel ◽  
X Ray ◽  
Field Emitters

Sensitive and Fast Direct Conversion X‐Ray Detectors Based on Single‐Crystalline HgI 2 Photoconductor and ZnO Nanowire Vacuum Diode

2020 ◽  
Vol 5 (5) ◽  
pp. 1901108
Author(s):  
Zhipeng Zhang ◽  
Zhaojun Zhang ◽  
Wei Zheng ◽  
Kai Wang ◽  
Huanjun Chen ◽  
...  
Keyword(s):  
Direct Conversion ◽  
Vacuum Diode ◽  
Zno Nanowire ◽  
Single Crystalline ◽  
X Ray

scholarly journals Transmission type flat-panel X-ray source using ZnO nanowire field emitters

2015 ◽  
Vol 107 (24) ◽  
pp. 243105 ◽  
Author(s):  
Daokun Chen ◽  
Xiaomeng Song ◽  
Zhipeng Zhang ◽  
Ziping Li ◽  
Juncong She ◽  
...  
Keyword(s):  
Zno Nanowire ◽  
Flat Panel ◽  
X Ray ◽  
Field Emitters

Electron Bombardment Induced Photoconductivity and High Gain in a Flat Panel Photodetector Based on a ZnS Photoconductor and ZnO Nanowire Field Emitters

ACS Photonics ◽  
2018 ◽  
Vol 5 (10) ◽  
pp. 4147-4155 ◽  
Author(s):  
Zhipeng Zhang ◽  
Kai Wang ◽  
Keshuang Zheng ◽  
Shaozhi Deng ◽  
Ningsheng Xu ◽  
...  
Keyword(s):  
High Gain ◽  
Electron Bombardment ◽  
Zno Nanowire ◽  
Flat Panel ◽  
Field Emitters

Space and Time Distribution of Hard X-Ray Emission in a Loop at the Beginning of a Flare

1994 ◽  
Vol 144 ◽  
pp. 275-277
Author(s):  
M. Karlický ◽  
J. C. Hénoux
Keyword(s):  
Time Distribution ◽  
Electron Bombardment ◽  
Spatial Evolution ◽  
Superthermal Electrons ◽  
Flare Loop ◽  
X Ray ◽  
Superthermal Electron ◽  
Flare Loops ◽  
Chromospheric Evaporation ◽  
Temporal And Spatial

AbstractUsing a new ID hybrid model of the electron bombardment in flare loops, we study not only the evolution of densities, plasma velocities and temperatures in the loop, but also the temporal and spatial evolution of hard X-ray emission. In the present paper a continuous bombardment by electrons isotropically accelerated at the top of flare loop with a power-law injection distribution function is considered. The computations include the effects of the return-current that reduces significantly the depth of the chromospheric layer which is evaporated. The present modelling is made with superthermal electron parameters corresponding to the classical resistivity regime for an input energy flux of superthermal electrons of 109erg cm−2s−1. It was found that due to the electron bombardment the two chromospheric evaporation waves are generated at both feet of the loop and they propagate up to the top, where they collide and cause temporary density and hard X-ray enhancements.

Controlled Preparation of Micron-Size-Pattemed ZnO Nanowire Field Emitters

2018 ◽  
Author(s):  
Libin Wang ◽  
Long Zhao ◽  
Keshuang Zheng ◽  
Juncong She ◽  
Shaozhi Deng ◽  
...  
Keyword(s):  
Zno Nanowire ◽  
Field Emitters ◽  
Micron Size ◽  
Controlled Preparation

Development of super miniature x-ray tube for brachytherapy using carbon nanotube field emitters

Brachytherapy ◽  
2009 ◽  
Vol 8 (2) ◽  
pp. 149 ◽  
Author(s):  
Sunghwan Heo ◽  
Aamir Ihsan ◽  
Sungoh Cho
Keyword(s):  
Carbon Nanotube ◽  
X Ray ◽  
Field Emitters
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