Effects of coverglass type on arcing phenomena on solar array in GEO environment
- Paper number
IAC-05-E2.P.09
- Author
Mr. Takashi Kawasaki, Kyushu Institute of Technology, Japan
- Coauthor
Dr. Satoshi Hosoda, Kyushu Institute of Technology, Japan
- Coauthor
Prof. Mengu Cho, Kyushu Institute of Technology, Japan
- Year
2005
- Abstract
In substorm environment, as high energy electrons flow into a satellite, arcing may occur on solar arrays. In our laboratory, the space environment proof test to evaluate the performance of the solar array against arcing is being performed. In a ground examination, it is required to simulate GEO conditions appropriately. However, making examination conditions unnecessarily severe is not welcomed. It leads to the increase of cost to take mitigation based on such an examination result. Since most test facilities are not large enough to accommodate a full solar panel, laboratories usually use coupons. Usually, the capacitance of coverglass is simulated by connecting a capacitor in the external circuit. But, there are big differences among research organizations about how much capacitance is appropriate. The international standard about the ground test conditions does not exist. The purpose of this research is to investigate the influence of coverglass on arcing phenomena on GEO satellite solar array. The experiment was performed by two kinds of coverglasses. They are BRR/s-0213 and CMG-100-AR. The electron beam was used to simulate the substorm environment. At first, we used aluminum foil to scatter the electron beam on the whole surface of solar array coupon. We made observations of the arc by using the IR camera. Light emission showed difference depending on the type of coverglass. We will report the experimental results in the conference.
- Abstract document
- Manuscript document
IAC-05-E2.P.09.pdf (🔒 authorized access only).
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