中国科学院机构知识库网格系统: 检索

基于自发参量下转换定标辐射计的实验研究 期刊论文 OAI收割
光子学报, 2020, 卷号: 49
作者: 胡友勃; 高冬阳; 李健军; 郑小兵

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收藏 | 浏览/下载：21/0 | 提交时间：2020/11/25

Spontaneous parametric down-conversion calibration Spectral distribution Radiometer Photon counting Quantum efficiency 自发参量下转换光谱分布辐射计光子计数量子效率

基于自发参量下转换定标辐射计的实验研究 期刊论文 OAI收割
光子学报, 2020, 卷号: 49
作者: 胡友勃; 高冬阳; 李健军; 郑小兵

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收藏 | 浏览/下载：64/0 | 提交时间：2020/11/25

Spontaneous parametric down-conversion calibration Spectral distribution Radiometer Photon counting Quantum efficiency 自发参量下转换光谱分布辐射计光子计数量子效率

Study on spectrograph for ionosphere: A broadband imaging instrument prototype for far-ultraviolet (EI CONFERENCE) 会议论文 OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Space Exploration Technologies and Applications, May 24, 2011 - May 26, 2011, Beijing, China
作者: Wang S.-R.; Lin G.-Y.; Yu L.

收藏 | 浏览/下载：36/0 | 提交时间：2013/03/25

Current research on space-based exploration for the ionosphere needs more advanced technologies. Because the spectral signals in the ionosphere distributing basically in the far-ultraviolet waveband are very weak. Usual spectrometer structures and detectors such as CCD can't receive enough information. Based on this principle of atmospheric sounding the imaging spectrometer prototype for ionosphere detection application was designed to solve the problem. This prototype consists of the telescope and the imaging spectrometer. The simple structure and small number of mirrors can help higher transmission efficiency be achieved and weak signals detection be implemented. The telescope is an off-axis parabolic mirror and the spectrometer is a modified Czerny-Turner spectral imaging system. Modified Czerny-Turner spectrometer contains a spherical mirror a fixed plane grating and a toroidal mirror. By adjusting the incident angle to the collimating mirror and using toroidal mirror coma and astigmatism were corrected well. We also optimize distances between the grating to the focusing mirror and the focusing mirror to the image plane to improve disadvantages of traditional Czerny-Turner structure. Designed results demonstrate that aberrations are substantially corrected and high image quality can be obtained in broad waveband. The photon counting Wedge-Strip-Anode detector with micro-channel planes as the receiving plane is accepted for the instrument prototype. The other photon counting 2-D detector responding well for weak light such as Cross-Delay line detector and MAMA detector can also be used for detection. The calibration and performances testing system is made of a vacuum system a deuterium lamp a monochrometer and the instrument prototype. Results obtained from the experiment show that the spectral resolution is 2.4 nm and the spatial resolution is 80 m. The other calibration experiments are running. The technology of the spectrometer prototype is important for the research and applications of ionosphere remote sensing. 2011 SPIE.

The key technologies of a new semi-automatic chemiluminescence immunoassay analyzer based on the photomultiplier tube (EI CONFERENCE) 会议论文 OAI收割
2010 3rd International Conference on Advanced Computer Theory and Engineering, ICACTE 2010, August 20, 2010 - August 22, 2010, Chengdu, China
作者: Wang B.; Zhang X.; Zhang X.; Zhang X.; Wang B.

收藏 | 浏览/下载：143/0 | 提交时间：2013/03/25

In this paper we present a new semi-automatic chemiluminescence immunoassay analyzer which is based on photons counter consists by the photomultiplier tube.The photons count efficiency is very high which makes the test result be more sensitive and steady.A calibration circuit was presented int this paper which was used to check the veracity of the photons counting. Significantly this paper presents two unique compensation modules-measuring chamber and double spherical-convex lens optical system which are used to improve the efficiency of photons counting. 2010 IEEE.

激光尘埃粒子计数器微型光学传感器的研究 期刊论文 OAI收割
光学学报, 2005, 卷号: 25, 期号: 9, 页码: 1260, 1264
梁春雷; 黄惠杰; 任冰强; 赵永凯; 杜龙龙

收藏 | 浏览/下载：1570/215 | 提交时间：2009/09/24

测量 measurement 光学传感器 optical sensor 粒径测量 particle size measurement 计数效率 counting efficiency

Research and development of large area resistive plate chamber 期刊论文 OAI收割
HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION, 2003, 卷号: 27, 期号: 7, 页码: 615-618
作者: Zhang JW(张家文); Zhao HQ(赵海泉); Li RB(李如柏); Du ZZ(杜志珍); Xie YG(谢一冈)

收藏 | 浏览/下载：25/0 | 提交时间：2016/06/28

resistive plate chamber (RPC) efficiency counting rate dark current

Ultrafast spectroscopy studies on the mechanism of electron transfer and energy conversion in the isolated pseudo ginseng, water hyacinth and spinach chloroplasts 期刊论文 OAI收割
SCIENCE IN CHINA SERIES B-CHEMISTRY, 2001, 卷号: 44, 期号: 4, 页码: 366-380
作者: Xu, SC; Sun, ZY; Ai, XC; Feng, J; Zhang, QY

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收藏 | 浏览/下载：24/0 | 提交时间：2019/04/09

Pseudo Ginseng Water Hyacinth Chloroplast Single Photon Counting Fluorescence Lifetime Excitation Energy Conversation Efficiency

Ultrafast spectroscopic studies on the isolated PSII particles from pseudo ginseng, water hyacinth and spinach leaves 期刊论文 OAI收割
ACTA CHIMICA SINICA, 2001, 卷号: 59, 期号: 6, 页码: 937-944
作者: Xu, SC; Ai, XC; Sun, ZY; Feng, J; Zhang, QY

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收藏 | 浏览/下载：24/0 | 提交时间：2019/04/09

Water Hyacinth Pseudo Ginseng Psii Particle Single Photon Counting Fluorescence Lifetime Excited Energy Convertion Efficiency

Ultrafast spectral studies of the primary processes of photosynthesis in spinach and water hyacinth leaves 期刊论文 OAI收割
ACTA BOTANICA SINICA, 2000, 卷号: 42, 期号: 12, 页码: 1235-1242
作者: Xu, SC; Sun, ZY; Ai, XC; Feng, J; Zhang, QY

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收藏 | 浏览/下载：24/0 | 提交时间：2019/04/09

Water Hyacinth Spinach Chloroplast Single Photon Counting Fluorescence Lifetime Excitation Energy Conversion Efficiency

Performance of a visible light photon counting imaging detector for weak light intensities 期刊论文 OAI收割
JOURNAL OF MODERN OPTICS
作者: Liu, Yong'an; Sheng, Lizhi; Zhao, Hui; Tian, Jinshou; Zhao, Baosheng

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收藏 | 浏览/下载：15/0 | 提交时间：2021/09/17

Detector photon-counting imaging spatial resolution quantum efficiency