HSC development in Taiwan

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HSC development in Taiwan

• Shiang-Yu Wang (???)
• Institute of Astronomy and Astrophysics Academia
  Sinica

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Background

• Instrumentation capability is one of the major
  research topic in ASIAA
• Development of WIRCAM in CFHT successfully
  finished in 2005
• Long term relationship with Japan
• Promote collaborations in Asian region
• Discussion with Subaru began in 2006

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Hyper SuprimeCam
HSC fits IAAs interests both in the science and
technical sides
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Our Role in HSC

• Mechanical Shutter
• Filter exchanger
• CCD emulator?
• Optical and Mechanical components?

Tight space and weight limits of the HSC makes it
challenging
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Specifications for shutter

• Time Repeatability 1
• Time Accuracy 0.01 s
• Shortest exposure time 1s
• Maximum Speed 800 mm/s
• Operation Temperature -10 to 10C
• Weight 25Kg
• 15mm thickness at shutter body and 120mm diameter
  of the drums

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Major activities in IAA

• Extract system design and specifications form
  Subaru last June
• HSC team formed in IAA
• ARL to be the major contractor for the two
  systems
• Fabric material purchased for strength test
• Regular meeting with ARL

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Aeronautical Research Lab. (ARL)

• Government funded Military research laboratory
• Major jet fighter development center in Taiwan
• Long term collaboration on the SMA project with
  good partner spirit.
• Main contractor carrying out the ALMA EA FEIC.

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Shutter design
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COVER
SCREEN
FRAME
DRUM
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SHUTTER DESIGN CONCEPT
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Shutter weight estimation
1 FRAME SH0012 1 AL 5.772 5.772
2 MOTOR HT3005 2 2.190 4.380
3 SHAFT SH0001 2 STEEL 1.209 2.418
4 SCREEN SH0016 1 FIBER 1.800 1.800
5 COVER SH0015 1 AL 1.349 1.349
6 ROLLER-IDLE SH0013 2 TEFLON 0.256 0.512
7 DRUM-UPPER SH0004 4 AL 0.212 0.848
8 COUPLING FAMM-L40 2 AL 0.13 0.260
9 TORQUE-METER QWLC-8M 2 STEEL 0.128 0.256
10 DRUM-RIGNT SH0003 2 AL 0.100 0.200
11 OTHER 1.342
TOTAL 19.137
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Projected Milestones

• Shutter components ready in March
• Prototype of shutter system to be finished in
  May.
• Detailed interface defined in May.
• System fabrication starts in late 2008.
• Ready for delivery in early 2010.