中国科学院机构知识库网格系统: 检索

Flexible On-Orbit Calibration for Monocular Camera and Laser Rangefinder Integrated Pose Measurement System 期刊论文 OAI收割
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, 2023, 卷号: 72
作者: Zhang, Guangdong; Zhang, Gaopeng; Yang, Hongtao; Wang, Changqing; Bao, Wenfan

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收藏 | 浏览/下载：22/0 | 提交时间：2023/06/05

Calibration Cameras Measurement by laser beam Lasers Space vehicles Laser theory Extraterrestrial measurements Integrated sensor laser rangefinder on-orbit calibration pose matrix space camera

Development, Calibration, and Image Processing of Underwater Structured Light Vision System: A Survey 期刊论文 OAI收割
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, 2023, 卷号: 72, 页码: 18
作者: Fan, Junfeng; Wang, Xuan; Zhou, Chao; Ou, Yaming; Jing, Fengshui

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收藏 | 浏览/下载：23/0 | 提交时间：2023/11/17

Machine vision Measurement by laser beam Three-dimensional displays Cameras Sea measurements Calibration Image processing system calibration system development underwater structured light vision system

Initial years' neutron-induced cross-section measurements at the CSNS Back-n white neutron source * 期刊论文 OAI收割
CHINESE PHYSICS C, 2021, 卷号: 45, 期号: 6, 页码: 14
作者: Tang, Jingyu; Liu, Rong; Zhang, Guohui; Ruan, Xichao; Wu, Xiaoguang

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收藏 | 浏览/下载：89/0 | 提交时间：2021/12/09

white neutron beam experimental spectrometers nuclear data measurements nuclides data analysis

Misalignment Measurement of Orbital Angular Momentum Signal Based on Spectrum Analysis and Image Processing 期刊论文 OAI收割
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2020, 卷号: 68, 期号: 1, 页码: 521-526
作者: Gao, Xinlu; Song, Xiyao; Zheng, Zhennan; Xie, Mutong; Huang, Shanguo

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收藏 | 浏览/下载：26/0 | 提交时间：2020/12/10

Measurement by laser beam Laser beams Antenna measurements Extraterrestrial measurements Image processing Distortion measurement Spectral analysis Antenna radiation patterns dipole radiation image processing misalignment measurement orbital angular momentum (OAM)

Development and application of bunch-by-bunch measurement system for BEPC II storage ring 期刊论文 OAI收割
HIGH POWER LASER AND PARTICLE BEAMS, 2015, 卷号: 27, 期号: 6, 页码: 65102
作者: Deng QY(邓庆勇); Cao JS(曹建社); Zhang Y(张源); Yue JH(岳军会); He J(何俊)

收藏 | 浏览/下载：21/0 | 提交时间：2016/04/18

Beam measurements Beam position monitors Beijing electron positron collider II Bunch position Bunch-by-bunch Development and applications Measurement system Oscillation amplitude

Laser wire scanner system for Beijing Electron-Positron Collider II 期刊论文 OAI收割
HIGH POWER LASER AND PARTICLE BEAMS, 2015, 卷号: 27, 期号: 6, 页码: 65103
作者: He J(何俊); Zhang C(张丛); Deng QY(邓庆勇); Wang L(汪林); Sui YF(随艳峰)

收藏 | 浏览/下载：27/0 | 提交时间：2016/04/18

Beam profile measurements Beijing electron positron collider II Cherenkov Detectors GEANT4 Laser optical systems Laser wires Mathematical processing Mechanical scanning systems

Design of a beam phase cavity and a waveguide coupled eccentric circle structure prebuncher in S-band 期刊论文 OAI收割
HIGH POWER LASER AND PARTICLE BEAMS, 2015, 卷号: 27, 期号: 7, 页码: 75102
作者: He X(贺祥); Hou M(侯汨); Zhao FL(赵风利); Pei SL(裴士伦); He

收藏 | 浏览/下载：31/0 | 提交时间：2016/04/18

Beam phase Coupling coefficient Prebuncher Real time measurements S-band Symmetrical structure Unloaded quality factors Waveguide coupling

Control of N/N2 species ratio in NO plasma for p-type doping of ZnO (EI CONFERENCE) 会议论文 OAI收割
作者: Chen X.; Liu L.; Liu L.; Li B.; Li B.

收藏 | 浏览/下载：21/0 | 提交时间：2013/03/25

Nitrogen-doped ZnO thin films were grown on c-plane sapphire (Al 2O3) substrates via plasma-assisted molecular beam epitaxy using plasma activated nitric oxide (NO) as the oxygen source and dopant. X-ray diffraction measurements indicate that a small NO flux benefits the crystal quality of the thin films. Hall effect measurements indicate that the electron density of the ZnO films decreases gradually with decreasing NO flux and the conduction reverses to p-type at a certain flux. Optical emission spectra indicate that the N atom content in the NO plasma increases with decreasing NO flux and the origin of this is discussed. X-ray photoelectron spectroscopy measurements demonstrate that the number of N atom occupied O sites in the ZnO lattice increases correspondingly. 2011 American Institute of Physics.

Fabrication of high-efficiency ultraviolet blazed gratings by use of direct Ar2-CHF3 ion-beam etching through a rectangular photoresist mask (EI CONFERENCE) 会议论文 OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Sensor and Micromachined Optical Device Technologies, May 24, 2011 - May 26, 2011, Beijing, China
Tan X.

收藏 | 浏览/下载：25/0 | 提交时间：2013/03/25

In ultraviolet spectroscopy groove irregularity and surface roughness of nanometer magnitude can cause a significant loss of diffraction efficiency. Therefore there is a constant need to improve the diffraction efficiency. A blazed grating can concentrate most of the light intensity into a desired diffraction order it is important to control the groove shape precisely so it is the optimum choice among gratings of different kinds of profile. As the operating wavelength of most UV spectral applications is less than 200 nm especially the blaze angle and the apical angle. We have presented a direct shaping method to fabricate EUV blazed gratings by using an ion-beam mixture of Ar+ and CHF2 +to etch K9 glass with a rectangular photoresist mask. With this method the required blaze angle is small we have succeeded in fabricating well-shaped UV blazed gratings with a 1200 line/mm groove density and 8.54 blaze angles and 1200 line/mm groove density and 11.68 blaze angles and the metrical efficiency is about 81% and 78%. The good performance of the gratings was verified by diffraction efficiency measurements. When one uses the etching model the conditions on the ion-beam grazing incident angle and the CHF3partial pressure should be noted. Besides since the etched groove shape depends on the aspect ratio of the photoresist mask ridge if we wish to fabricate larger gratings with this method we must improve the uniformity of the photoresist mask before ion-beam etching. 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).

Hirfl-CSR facility status and development 期刊论文 OAI收割
CYCLOTRONS 2010 - 19th International Conference on Cyclotrons and Their Applications, 2010, 页码: 37-41
作者: Yang, X.D.; Xu, H.S.; Yang, J.C.; Xia, J.W.

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收藏 | 浏览/下载：22/0 | 提交时间：2016/03/29

Beam Spot Cancer Therapy Further Development High Resolution Internal Gas Target Mass Measurements Measurement Methods Nonlinear Effect