A study on the special effect of protons and electrons with energies from 60 to 200 kev on optical materials for spacecraft application
|1Hai, L, 1Shiyu, He., 2Abraimov, VV, 3Huaiyi, W, 1Dezhuang, Y |
1Center for Space Materials Science and Simulation of the Cosmic Factors of the Harbin Polytechnic University, Harbin, China
2B.Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine, Kharkiv, Ukraine
3Institute of Space Engineering, Academy of Space Technologies of China, Beijing, China
|Kosm. nauka tehnol. 2002, 8 ;(1):042-054|
|Publication Language: Russian|
The effects of the radiation belt protons and electrons with energies from 60 to 200 keV on the optical materials for spacecraft application were studied using the complex space environmental factors simulators KIFK and UPI. In the dose range from Ф = 5xl014 to 4x1017 part/cm2 , stint phenomena of dye, blister or flake (complex structural defects formed on the surface of glass and reflecting mirror) and radiation discharge occurred in the materials tested. These phenomena remarkably changed the transparency, absorption, and reflection of the materials. The results showed that the blister and flake on the surface of glass and reflecting mirror took place instantaneously at the critical radiation dose Фс = 6x10 part/cm2. The results were analyzed within the scope of the present-day theories of dye, blister, and discharge. They are primarily in accordance with the blister theory of Martynenko.
|Keywords: blister, flake, radiation discharge|
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