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Probing boson stars with extreme mass ratio inspirals 期刊论文  OAI收割
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2019, 期号: 9, 页码: 32
作者:  
Guo, Huai-Ke;  Sinha, Kuver;  Sun, Chen
  |  收藏  |  浏览/下载:19/0  |  提交时间:2020/06/16
Accurate determination of black-body radiation shift, magic and tune-out wavelengths for the 6S(1/2) -> 5D(3/2) clocktransition in Yb+ 期刊论文  OAI收割
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2017, 卷号: 50, 期号: 20
作者:  
De, S.;  Sahoo, B. K.;  Arora, Bindiya;  Roy, A.
  |  收藏  |  浏览/下载:27/0  |  提交时间:2017/12/06
Accurate determination of black-body radiation shift, magic and tune-out wavelengths for the 6S1/2 ? 5D3/2 clock transition in Yb+ 期刊论文  OAI收割
Journal of Physics B: Atomic, Molecular and Optical Physics, 2017, 卷号: 50, 期号: 20
作者:  
De,S;  Arora,Bindiya;  Sahoo,B K;  Roy,A
  |  收藏  |  浏览/下载:24/0  |  提交时间:2018/11/05
Research on the laboratory radiometric calibration of the thermal imager (EI CONFERENCE) 会议论文  OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, April 26, 2010 - April 29, 2010, Dalian, China
作者:  
Wang J.;  Liu Y.;  Liu Y.;  Liu Y.;  Sun Q.
收藏  |  浏览/下载:24/0  |  提交时间:2013/03/25
The radiometric calibration of the thermal imager was investigated to build the relationship between the input radiance and the digital output to realize the temperature measurement. The radiometric calibration was implemented in the State Key Laboratory of Applied Optics. A standard black body source was served as radiation source. The response of the thermal imager to the input radiance was tested for different gains. The experimental results show that the average grey level of the output imaging is linear dependence of the input radiance. Because the radiance in the receiving wave range of the thermal imager is linear with the black body's temperature based on Planck's law of radiation  the average grey level of the output image is also linear with the black body's temperature after fitting a curve to the experiment data points. Then the relationship of the response and the gain was studied when the black body's temperature kept constant. The preliminary analysis of calibration data shows that the response of the thermal imager is linear and the average grey value of the image is directly proportion to the gain. According to the experimental results  the reference gains and the dynamic range of temperature measurement were obtained. Finally  the uncertainty influencing the calibration results was analyzed  the analysis shows the maximal uncertainty is 5.2%  which can meet the calibration requirement less than 10%. 2010 Copyright SPIE - The International Society for Optical Engineering.  
Method for obtaining real temperature of space object by using the ratio of emissivity at different wavelengths (EI CONFERENCE) 会议论文  OAI收割
4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, November 19, 2008 - November 21, 2008, Chengdu, China
Guo-Qiang W.; Tao C.; Jian-Li W.
收藏  |  浏览/下载:33/0  |  提交时间:2013/03/25
The infrared radiation character (temperature and efficiency radiation area) of a space object is an important characteristic  we can judge the state of the object working in orbit by measuring temperature and variety. Due to lower temperature of the object and far distance between the object and the earth  the infrared radiation signal is faintness  therefore temperature and the infrared radiation character is difficult to measure. There are several methods to measure the temperature of the object in theory and each one has its applicability respectively  such as applying Wien Law to compute temperature  based on Stefan-Bolzmann law to compute temperature and utilizing multi-spectrum detector to measure temperature As a whole these methods are based on the hypothesis that the object is a Black-body or the radiance emissivity is constant. In fact  homochromatic radiance of object is not a constant but a function that changes with wavelength. Since the problem that an object whose homochromatic radiance s not a constant which results in temperature can not be computed accurately  we bring forward a method to contrast the luminance of the object at different wavelengths and deduce the relationship among homochromatic radiance and wavelength and the temperature of Black-body  from which we can compute real temperature of object. 2009 SPIE.  
Off-line experiment on the bunch length diagnostic device at the BFEL 期刊论文  OAI收割
HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION, 2006, 卷号: 30, 期号: 1, 页码: #REF!
作者:  
Zhu JB(朱俊彪);  Bai S(白莎);  Xie JL(谢家麟);  Zhu, JB;  Li, ZH
收藏  |  浏览/下载:16/0  |  提交时间:2016/04/12
超短脉冲激光诱导透明材料发光现象研究 学位论文  OAI收割
作者:  
钱静
  |  收藏  |  浏览/下载:26/0  |  提交时间:2018/12/26