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探测无中微子双贝塔衰变的PandaX-Ⅲ实验需要一个能同时对多个Micromegas探测器的增益、能量分辨、坏道分布、位置分辨等性能参数进行测试的平台，为此中国原子能科学研究院建立了PandaX-Ⅲ实验探测器测试平台。本文采用由光蚀刻技术制作的Bulk Micromegas对该测试平台进行研究：利用55Fe放射源在Ar+10%CO2的流气情况下，使用基于AGET读出芯片制作的通用读出电子学进行数据...
利用光蚀刻技术制作的有效面积为10 cm×10 cm的多通道Bulk Micromegas探测器。对探测器的各通道进行了电容测试，显示探测器在Ar + 10％CO 2气体中，使用55 Fe放射源和自主开发的基于APV25前端卡的数字化电子学，对制作的有效面积为10 cm×10 cm的探测器进行。该探测器现有全部工艺国产化，并能进行批量生产，成品率接近100％。了测试，其结果显示探测器性能良好，能得...
Reliability measures of electrical grid has risen to a new norm as it involves physical security and cybersecurity. Threats to either can trigger instability, leading to blackouts and economic losses....
Research on Parallel Bulk-Loading R-Trees Based on Partition Technology of Database
Spatial Index R-Tree Partition Parallel Computing
2015/12/18
Research on Parallel Bulk-Loading R-Trees Based on Partition Technology of Database.
Manipulating Block Copolymer Self-Assemblies in Bulk and Thin Films by Thermal and Solvent Annealing
Pure sciences Applied sciences Annealing Block copolymers Bulk Nanopatterning Self-assembly Thin film
2014/11/21
The self-assembly of block copolymers (BCPs) into well-ordered nanoscopic arrays holds promise for new technological breakthroughs as templates and scaffolds for the fabrication of nanostructured mate...
Bulk Intergrowth of a Topological Insulator with a Room Temperature Ferromagnet
Bulk Intergrowth Topological Insulator Room Temperature Ferromagnet
2012/2/22
We demonstrate that the layered room temperature ferromagnet Fe7Se8 and the topological insulator Bi2Se3 form crystallographically oriented bulk composite intergrowth crystals. The morphology of the i...
The Improvement of Bulk-Heterojunction Order in Polymer Photovoltaic Device
Polymer photovoltaic device Bulk-heterojunction Annealing method
2011/12/1
The blend morphology and vertical arrangement are critical to the performance of organic bulk-heterojunction photovoltaic devices. In the present paper, the authors proposed a new annealing method tha...
Mid-IR-laser microscopy as a tool for defect investigation in bulk semiconductors
Mid-IR-laser microscopy defect investigation bulk semiconductors
2011/6/3
A non-destructive optical technique described in this paper is an effective new tool for the investigation of defects in semiconductors. The basic instrument for this technique—a mid-IR-laser microsco...
Influence of Photoexcitation Depth on Luminescence Spectra of Bulk GaAs Single Crystals and Defect Structure Characterization
Photoexcitation Luminescence Spectra Bulk GaAs Single Crystals Defect Structure Characterization
2011/6/3
The results of investigation of bulk GaAs photoluminescence are presented taken from near-surface layers of different thicknesses using for excitation the light with the wavelengths which are close bu...
Influence of photoexcitation depth on luminescence spectra of bulk GaAs single crystals: application to defect structure characterization
Photoexcitation Luminescence Spectra depth Bulk GaAs Single Crystals Defect Structure Characterization
2011/6/3
The results of investigation of bulk GaAs photoluminescence are presented taken from near-surface layers of different thicknesses using for excitation the light with the wavelengths which are close bu...
Optical beam-induced scattering mode of mid-IR laser microscopy: a method for defect investigation in near-surface and near-interface regions of bulk semiconductors
Optical beam-induced scattering mode mid-IR laser microscopy
2011/6/3
This paper presents a new technique of optical beam-induced scattering of mid-IR-laser radiation, which is a special mode of the recently developed scanning
mid-IR-laser microscopy. The technique in ...
10Gb/s Silicon Modulator Based on Bulk-Silicon Platform for DRAM Optical Interface
Silicon Modulator Bulk-Silicon DRAM Optical Interface
2011/5/15
We present 10Gb/s silicon Mach-Zehnder modulators fabricated on a bulk silicon wafer.10Gb/s data transmission with extinction ratio of >9dB at de-emphasis level of 12dB is successfully demonstrated.
Preparation, structure and properties of Fe-based bulk metallic glasses
Preparation structure properties Fe-based bulk metallic glasses
2010/6/12
Since amorphous materials were prepared in the Au-Si system alloy in 1960 many scientific investigations have been done. These facts have been informed that amorphous alloys have new atomic configurat...
50-Wavelength Channel-by-Channel Tunable Optical Dispersion Compensator Using Combination of Arrayed-Waveguide and Bulk Gratings
Dispersion compensation devices Waveguides planar Gratings Spatial light modulators
2010/6/8
We propose a novel optical configuration for a channelized tunable optical dispersion compensator (TODC) with channel-by-channel operation across entire the L-band. The TODC consists of a cyclic frequ...
Structure, thermal and magnetic properties of Fe43Co14Ni14B20Si5Nb4 bulk metallic glass
Structure thermal magnetic properties Fe43Co14Ni14B20Si5Nb4 bulk metallic glass
2010/2/12
Iron-based metallic glasses have received great attention of researchers, because of their good magnetic, mechanical properties and corrosion resistance. Moreover, these alloys are potential candidate...