2001 Fiscal Year Final Research Report Summary
Development of Cryogenic Electronics for High Sensitivity Sensors
| Project/Area Number |
10354002
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 展開研究 |
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| Research Field |
Astronomy
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| Research Institution | Nagoya University |
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Principal Investigator |
SHIBAI Hiroshi Nagoya University, Graduate School of Science, Professor, 大学院・理学研究科, 教授 (70154234)
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| Co-Investigator(Kenkyū-buntansha) |
HIRAO Takanori Nagoya University, Graduate School of Science, Res. Assoc., 大学院・理学研究科, 助手 (00293689)
SATO Shinji Nagoya University, Graduate School of Science, Res. Assoc., 大学院・理学研究科, 助手 (60192598)
KAWADA Mitsunobu Nagoya University, Graduate School of Science, Lecturer, 大学院・理学研究科, 講師 (50280558)
NAKAGAWA Takao Nagoya University, Inst. Sp. Astronaut. Sci. Professor, 宇宙圏研究系, 教授 (20202210)
MATSUHARA Hideo Nagoya University, Inst. Sp. Astronaut. Sci. Assoc. Professor, 宇宙圏研究系, 助教授 (30219464)
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| Project Period (FY) |
1998 – 2000
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| Keywords | Far-Infrared Radiation / Infrared Sensor / Cryogenic Electronics / Infrared Astronomy / Array Sensor / Infrared Observation |
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| Research Abstract |
In order to achieve high sensitivity and high-energy resolution for infrared astronomical satellites as well as X-ray astronomical satellites, cryogenic cooling technique of sensors at 2 Kelvin or below is often employed. For these applications, it is highly required to install preamplifiers, multiplexers, and even A/D converters in the low temperature part so as to realize the maximum performance of large-scale astronomical satellites. However, standard electronics devices can operate only above -50 degrees C, and no devices operable at 2 Kelvin has been developed. The purpose of this research is to develop cryogenic preamplifiers, multiplexers, and A/D converters by using MOSFETs. As the result of this research, we have invented a new MOSFET structure that is operable at 2 Kelvin. This is the first result by using commercial silicon wafers. Next, we have made an operational amplifier at 2 Kelvin, as well as 60-channel preamplifier array for far-infrared array sensors. The final product of this research is used for the far-infrared array sensors of the first infrared astronomical satellite of Japan.
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