| GEOPHYSICS, ASTRONOMY, AND ASTROPHYSICS |
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Photometric Calibration of the Barium Cloud Image in a Space Active Experiment: Determining the Release Efficiency |
| XIE Liang-Hai1,2**, LI Lei1, WANG Jing-Dong1, TAO Ran1, CHENG Bing-Jun1, ZHANG Yi-Teng1 |
1Center for Space Science and Applied Research, Chinese Academy of Sciences, Beijing 100190
2University of Chinese Academy of Sciences, Beijing 100049
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| Cite this article: |
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XIE Liang-Hai, LI Lei, WANG Jing-Dong et al 2014 Chin. Phys. Lett. 31 019401 |
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Abstract The barium release experiment is an effective method to explore the near-earth environment and to study all kinds of space physics processes. The first space barium release experiment in China was successfully carried out by a sounding rocket on April 5, 2013. This work is devoted to calculating the release efficiency of the barium release by analyzing the optical image observed during the experiment. First, we present a method to calibrate the images grey value of barium cloud with the reference stars to obtain the radiant fluxes at different moments. Then the release efficiency is obtained by a curve fitting with the theoretical evolution model of barium cloud. The calculated result is basically consistent with the test value on ground.
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Received: 26 July 2013
Published: 28 January 2014
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| PACS: |
94.20.Tt
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(Ionospheric soundings; active experiments)
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94.20.wc
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(Plasma motion; plasma convection; particle acceleration)
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95.75.Mn
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(Image processing (including source extraction))
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Abstract
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