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Mikhail Tarasov, Aleksandra Gunbina, Artem Chekushkin, Mikhail Strelkov and Valerian Edelman
Infrared and millimeter-wave band astronomical superconducting receivers require precise sources for instrument monitoring and calibration inside the cryostat. A cryogenic microwave blackbody radiation source with variable radiation temperature is the ma...
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Fan Yang, Xinliang Wang, Jun Ruan, Junru Shi, Sichen Fan, Yang Bai, Yong Guan, Qiang Hao, Hui Zhang, Dandan Liu and Shougang Zhang
The cesium atomic fountain clock is the world?s most accurate microwave atomic clock. The uncertainty of blackbody radiation (BBR) shift accounts for an increasingly large percentage of the uncertainty associated with fountain clocks and has become a key...
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Hye-In Kim, Bong-Geon Chae, Pil-Gyeong Choi, Mun-Shin Jo, Kyoung-Muk Lee and Hyun-Ung Oh
In this study, we propose a thermal design for an on-board blackbody (BB) for spaceborne infrared (IR) sensor calibration. The main function of the on-board BB is to provide highly uniform and precise radiation temperature reference sources from 0 °C to ...
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Rong Song, Jingxu Bai, Yuechun Jiao, Jianming Zhao and Suotang Jia
The lifetimes of ????1/2
n
S
1
/
2
and ????5/2
n
D
5
/
2
(n = 60?83) cesium Rydberg states are measured accurately in a magneto-optical trap using the field ionization technique and analyzed with the existing theoretical model. The room temperature bla...
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Jianhua Ding, Qi Yao and Lei Jiang
Despite the fact that a 2-degree spectral sensitivity curve (SSC) is extensively used in scientific research and relevant applications, the choice between the 10-degree or the 2-degree photopic SSCs in practical applications for the calculation of scotop...
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Maureen de Gastines, Érica Correa, Andrea Pattini
Pág. 112 - 122
Within the framework of window labelling system elaboration in Argentina, this article questions the suitability of replicating calculation procedures from other countries with different climatic and technological contexts. This paper analyzes the method...
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Thomas Von Clarmann
This paper reviews the various aspects of chlorine compounds in the stratosphere, both their roles as reactants and as tracers of dynamical processes. In the stratosphere, reactive chlorine is released from chlorofluorocarbons and other chlorine-containi...
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