NIFS

1
(No Transcript)
2
NIFS Critical Design Review
3
Presentation Schedule

• Thursday, April 19, 2001
• 900 Committee Session
• 920 Introduction
• 940 Science Issues
• 1010 Systems Design
• 1030 Coffee
• 1100 Optical Design
• 1230 Lunch
• 130 Mechanical Overview
• 230 Mechanical Analysis
• 330 Coffee
• 400 Detector System
• 500 Committee Session
• 530 End of Day

• Friday, April 20, 2001
• 900 Control System
• 930 Cryostat Duplication
• 945 IS,CC Software Design
• 1015 Coffee
• 1045 DC Software Design
• 1145 Management Plan
• 1230 Lunch Workshop Tour
• 130 NIFS Team Discussion
• 230 Coffee
• 300 Committee Convenes
• 430 Committee Comments
• 530 End of Day

4
NIFS CDR Review Team
Simon Morris (Chair) HIA/NRC Doug
Simons IGPO Jim Oschmann IGPO Bob Nolan
IGPO Klaus Hodapp IfA, UH John Rayner IfA,
UH Mark Hunten IGPO Corrine Boyer IGPO
5
Gemini Near-infrared Integral Field Spectrograph
Key personnel
Peter McGregor Project Scientist Jan van
Harmelen Project Manager John Hart Project
Engineer Peter Conroy Mechanical Design Gabe
Bloxham Optical Manufacture Mark
Downing Detector Systems Murray Dawson Control
System Peter Young Software Design Mark
Jarnyk Software Design
6
Opto-Mechanical Design
7
Changes Since CoDR

• Grating wheel replaced by grating turret.

• Flip mirror added for target acquisition.

• Silica field flattener will block 5 µm light.

• Neutral density filter in Focal Plane Mask Wheel.

• Wire grid K filter for polarimetry.

• All spectrograph mirrors are to be
  diamond-turned.

• Science detector system to be designed with IfA.

• Cryostat and OIWFS duplication at RSAA.

8
Instrument Parameters

• Wavelength range 0.94-2.5 ?m.

• Spatial pixel size 0.04??0.10?.

• Spectral resolving power 5290 (two pixels).

• Focal plane occulting masks 0.1?, 0.2?, 0.5?
  circular.

• Neutral density filter.

• Gratings Z, J, H, K.

• Order blocking filters Z, J, H, K.

• Polarimetry wire grid with K filter only.

• Direct view mirror for target acquisition.

• Near-infrared OIWFS
• Wavelength range 0.95-2.5 ?m.
• Steerable over 180? FOV (120? with ALTAIR).
• Image scale 0.170?/pixel.
• Filters J, H, K.
• Instantaneous FOV 2? diameter.

9
Schedule
Filling the Gap meeting 17 March 1999 CoDR
Work Scope signed 24 August 1999 Revised
Initial OCDD FPRD 14 February 2000 Conceptual
Design Review 15 March 2000 Critical Design
Review 19 April 2001 Engineering Detector
Delivery 18 September 2001 Start of First
Cryostat Cool Down 24 October 2001 Completion of
Cryostat Duplication 22 April 2002 Science
Detector Delivery 23 April 2002 Start of First
NIFS Cool Down 05 June 2002 Ship NIFS to
Hawaii 20 February 2003 Project
Closeout June 2003
10
RSAA CDR Issues

• Breadth of science capability?

• Availability of AO guide stars?

• Availability of laser guide stars?

• Detector performance vs science capability?

• Integrated ghost intensity?

• Scope of DC software implementation?

• Baffle central hole in secondary mirror?