Abstract
The Tomo-e Gozen is an extremely wide-field optical camera for the Kiso 1.0-m Schmidt telescope. It is capable of taking consecutive frames with a field-of-view of 20 deg 2 and a sub-second time-resolution, which are achieved by 84 chips of 2k×1k CMOS sensor. This camera adopts unconventional designs including a lightweight structure, a nonvacuumed and naturally-air cooled system, front-side-illuminated CMOS sensors with microlens arrays, a sensor alignment along a spherical focal plane of the telescope, and massive readout electronics. To develop technical components necessary for the Tomo-e Gozen and confirm a feasibility of its basic design, we have developed a prototype-model (PM) of the Tomo-e Gozen prior to the final-model (FM). The Tomo-e PM is equipped with eight chips of the CMOS sensor arranged in a line along the RA direction, covering a sky area of 2.0 deg 2. The maximum frame rate is 2 fps. The total data production rate is 80 MByte sec -1 at 2 fps, corresponding to approximately 3 TByte night-1. After laboratory testing, we have successfully obtained consecutive movie data at 2 fps with the Tomo-e PM in the first commissioning run conducted in the end of 2015.
Original language | English |
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Title of host publication | Ground-Based and Airborne Instrumentation for Astronomy VI |
Editors | Luc Simard, Christopher J. Evans, Hideki Takami |
Publisher | SPIE |
ISBN (Electronic) | 9781510601956 |
DOIs | |
Publication status | Published - 2016 |
Event | Ground-Based and Airborne Instrumentation for Astronomy VI - Edinburgh, United Kingdom Duration: 2016 Jun 26 → 2016 Jun 30 |
Publication series
Name | Proceedings of SPIE - The International Society for Optical Engineering |
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Volume | 9908 |
ISSN (Print) | 0277-786X |
ISSN (Electronic) | 1996-756X |
Conference
Conference | Ground-Based and Airborne Instrumentation for Astronomy VI |
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Country/Territory | United Kingdom |
City | Edinburgh |
Period | 16/6/26 → 16/6/30 |
Keywords
- Big data
- CMOS sensor
- Kiso observatory
- Movie data
- Optical
- Schmidt telescope
- Time domain
- Wide field