| Autor: |
Kenta Kaneko, Tadayasu Dotani, M. Ozaki, Kiyoshi Hayashida, Takayoshi Kohmura, Tatsuo Watanabe, H. Tsunemi, Hiroshi Nakajima, K. Matsuta, Takahisa Fujinaga, Astro-H Team, Koji Mori, Shunji Kitamoto, Takeshi Go Tsuru, J. Hiraga, Shoma Ikeda, Naohisa Anabuki, Hiroshi Murakami, Shutaro Ueda, Kohei Kawai |
| Rok vydání: |
2012 |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings. |
| ISSN: |
0094-243X |
| DOI: |
10.1063/1.3696191 |
| Popis: |
We have newly developed the back-illuminated (BI)-CCD which has an Optical Blocking Layer (OBL) directly coating its X-ray illumination surface with Aluminum-Polyimide-Aluminum instead of Optical Blocking Filter (OBF). OBL is composed of a thin polyimide layer sandwiched by two Al layers. Al and Polyimide has a capability to cut visible light and EUV, respectively. To evaluate the performance of OBL that cut off EUV as well as transmit soft X-ray, we measured the EUV and Soft X-ray transmission of both OBL at various energy range between 15-2000 eV by utilizing beam line located at the Photon Factory in High Energy Accelerator Research Organization. We obtained the EUV transmission to be ~3% at 41eV which is as same as expected transmission from the designed thickness of polyimide layer, and found no significant change of the EUV transmission of polyimide found during 9month. We also obtained the Soft X-ray transmission of OBL, and found the X-ray transmission of OBL was consistent with the result expected from the thickness of OBL. We also measured the Optical transmission of OBL between 500-900 nm to evaluate the performance of Al that cut off optical light, and obtained the optical transmission to be less than 4×10−5. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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