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AUSTRALIAN
NATIONAL UNIVERSITY
Service and Calibration
Manual
Created:
22 January 2001
Last
modified: 27 March 2001
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SERVICE AND CALIBRATION MANUAL
Jan van Harmelen
Research School of Astronomy
and Astrophysics
Institute of Advanced
Studies
Australian National
University
Revision History
Revision No.
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Author &
Date
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Approval &
Date
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Description
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Revision
1
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Jan van
Harmelen
22 January 2001
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Draft Document Outline.
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Contents
1 Purpose. 3
2 Applicable
Documents. 3
3 Introduction. 3
4 Preparing NIFS
for Use or Storage. 4
5 NIFS Calibration. 5
6 NIFS Major
Assembly. 5
7 Cryostat 6
8 Thermal Cabinets. 9
9 Interconnections. 10
10 OIWFS Detector
System.. 11
11 Spectrograph
Detector System.. 12
Appendix A: List
of Figures. 14
Appendix B: Test
Data for Optical Components. 14
Appendix C:
Spectrograph Detector Test Data. 14
Appendix D:
Alignment History. 14
Appendix E:
Calibration History. 14
[Note:
in the final document, the table of contents will be to third level]
The purpose of this Service and Calibration Manual is describe the
procedures used to service, maintain, and calibrate the operation of the Gemini
Near-infrared Integral Field Spectrograph.
Document
ID
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Source
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Title
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SPE-I-G0074
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IGPO
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Programmatic
Requirements for Gemini Instrumentation Development
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Section 19.4.2 of the document
“Programmatic Requirements for Gemini Instrumentation Development” states the
requirements for the Service
and Calibration Manual.
In short, it needs to provide the
information necessary to guide service and maintenance of the instrument. To
this end, a major part of the document is devoted to assembly and disassembly
procedures, and to inspection, realignment, and calibration procedures.
Photographs are used where appropriate to show procedures, and histories and
results are included as indicators of normal operating parameters and as
diagnostic tools.
4.1 Setting Up in Instrument
Preparation Area
4.1.1 Transportation
4.1.2 Connection to Services
4.1.3 Vacuum
4.1.4 Cooldown
4.1.5 Functionality Tests
4.1.6 Communication Links Tests
4.2 Mounting on the Telescope
4.2.1 Transportation
4.2.2 Connection to Services
4.2.3 Functionality Tests
4.2.4 Communication Links Tests
4.2.5 Full System Tests
4.3 Removal from the Telescope
4.3.1 Warmup
4.3.2 Accelerated Warmup
4.3.3 Disconnection from Services
4.3.4 Transportation
4.4 Preparation for Storage
4.4.1 Warmup
4.4.2 Accelerated Warmup
4.4.3 Vacuum
Astronomical calibration is described in
the NIFS User’s Manual. Only Calibration for engineering purposes is described
here.
5.1 Calibrating Mechanism
Positions
5.1.1 Using the Tools
5.1.1.1 Mechanism Interface
5.1.1.2 Scan Tool
5.1.1.3 Cycle Tool
5.1.1.4 Position Tool
5.1.2 Calibration Procedure
5.2 Daytime Calibration on the
Telescope
5.2.1 Calibration with GCAL
5.2.1.1 Spectral Calibration
5.2.1.2 Flexure Testing
5.2.2 Calibration with ALTAIR
5.2.2.1 Flexure Testing
6.1 Disassembly and Packing for
Transportation
6.1.1 Preparation, Service Tooling
6.1.2 Removing the Cryostat from
the Integration Frame
6.1.2.1 Environmental Cover
6.1.2.2 ISS Interface Plate
6.1.2.3 Thermal Enclosures
6.1.3 Packing the Components
6.1.3.1 ISS Interface Plate
6.1.3.2 Cryostat
6.1.3.3 Integration Frame
6.1.3.4 Ballast and other Heavy
Components
6.1.3.5 Thermal Enclosures
6.2 Assembly after Transportation
6.2.1 Preparation, Service Tooling
6.2.2 Integrating the Complete
Instrument
6.2.3 Instrument Balancing
6.2.3.1 Preparation, Service
Tooling
6.2.3.2 Ballast Positioning,
Ballast Map
7.1 Vacuum Jacket Disassembly
7.1.1 Preparation, Service Tooling
7.1.2 Access to OIWFS and
Spectrograph Focal Plane Unit
7.1.2.1 Dismantling the Vacuum
Jacket
7.1.2.2 Access through the
Radiation Shields
7.1.2.3 Spectrograph Focal Plane
Unit
7.1.2.4 OIWFS
7.1.2.5 Cryocoolers
7.1.3 Access to Spectrograph
7.1.3.1 Dismantling the Vacuum Jacket
7.1.3.2 Access through the
Radiation Shields
7.2 Vacuum Jacket Assembly
7.2.1 Assembly Order
7.2.2 Check-List before Closure
7.2.3 Preparation for Vacuum
Pumping
7.3 OIWFS Disassembly
The NIRI manual will be adopted for NIFS
when available.
7.4 OIWFS Assembly
The NIRI manual will be adopted for NIFS
when available.
7.5 OIWFS Alignment
The NIRI manual will be adopted for NIFS
when available.
7.6 Spectrograph Disassembly
7.6.1 Preparation
7.6.2 Removing the Radiation
Shields
7.6.3 Removing the Cover and Skirt
7.6.4 Removing the Detector
Housing
7.6.5 Removing the Baffling
7.6.6 Removing the Modules
7.6.6.1 Detector Support Tower
7.6.6.2 Baffling
7.6.6.3 Camera
7.6.6.4 Flip Mirror
7.6.6.5 Grating Turret and Grating
Drive
7.6.6.6 Collimator Corrector Tower
7.6.6.7 Tri-Fold Tower
7.6.6.8 Collimator Mirror Tower
7.6.6.9 Image Slicer Tower
7.6.6.10 Filter-Fold Tower
7.7 Spectrograph Assembly
7.7.1 Assembly Order
7.7.2 Check List before Closure
7.8 Spectrograph Alignment
7.8.1 Module pre-alignment
7.8.1.1 Filter-Fold Tower
7.8.1.2 Image Slicer Tower
7.8.1.3 Tri-Fold Tower
7.8.1.4 Grating Turret
7.8.2 System Alignment
7.8.2.1 Focal Converter
7.8.2.2 Cold Stop
7.8.2.3 First and Second Fold
Mirrors
7.8.2.4 Image Slicer Tower
7.8.2.5 Collimator Mirror Tower
7.8.2.6 Collimator Corrector Tower
7.8.2.7 Gratings
7.8.2.8 Camera Focus
7.8.2.9 Detector Rotation
7.8.3 Focus Checks
7.9 Electrical/Electronics
Components
7.9.1 Hall Effect Sensors
7.9.2 Stepper Motors
7.9.3 Thermal Control
7.9.4 Wiring
Note: Detector wiring is covered under the
detector systems
8.1 Optical Components Controller
Thermal Enclosure
8.1.1 Introduction and Overview
For each sub section, give assembly and disassembly
procedures, wiring diagrams, inspection procedures, performance curves, etc.
8.1.2 CC VME Rack
8.1.2.1 MVME 167-33B Single Board
Computer
8.1.2.2 BC635VME Time Bus
Interface
8.1.2.3 MVME 761-001 Transition
Module
8.1.2.4 XVME 490-1 Serial Port
Card
8.1.2.5 XVME-240 Digital I/O Card
8.1.2.6 VME8-8 Stepper Motor
Controller
8.1.2.7 Sensor Support Board
8.1.2.8 XVME-566 Analog Input Card
8.1.2.9 Cooling Crate and Power
Supply
8.1.3 Phytron Backplane
8.1.4 Phytron Stepper Motor Driver
Modules
8.1.5 Thermal Control
8.1.5.1 Omega Temperature
Controllers
8.1.5.2 Omega Digital Thermometer
8.1.5.3 Pacific Scientific Stepper
Drivers
8.1.5.4 Backup Pulse Generator
Card
8.1.5.5 Timer and Interlock
Subsystem
8.1.5.6 Power Supplies
8.1.6 Network Communications
8.1.7 Cabinet Wiring
8.2 Detector Controller Thermal
Enclosure
8.2.1 Introduction and Overview
8.2.2 DC VME Rack
8.2.2.1 MVM5100 Single Board
Computer
8.2.2.2 BC635VME Time Bus
Interface
8.2.2.3 Cooling Crate and Power
Supply
8.2.3 Detector Temperature
Controller
8.2.4 SDSU Power Supplies
8.2.5 Cabinet Wiring
8.3 Computer Systems Maintenance
The computer systems incorporated in the
Thermal Cabinets are standard Gemini issue (except for the DC CPU board) and
should be serviced according to Gemini procedures.
8.3.1 DC CPU Maintenance
9.1 Hoses
9.1.1 Helium Supply
9.1.2 Air Supply
9.1.3 Coolant Supply
9.2 Cables to Gemini Systems
9.2.1 Mains Power
9.2.2 Networks
9.2.3 Interlock System
9.3 Cables between Thermal Enclosures
and Cryostat
9.3.1 Sensor Cables
9.3.2 Motor Cables
9.3.3 Temperature Controller
Cables
9.3.4 Detector Controller Power
Supply Cables
9.3.5 Communications Interconnects
10.1 Introduction
10.2 Connecting and Disconnecting
the OIWFS Detector Controller from the Cryostat
10.2.1 Introduction
10.2.2 Dissipative Shorting Plugs
10.2.3 Disconnecting the Detector
Controller From the Cryostat
10.2.4 Connecting the Detector
Controller to the Cryostat
10.3 Assembling and Disassembling
the OIWFS Detector and Detector Cryostat Wiring
10.3.1 Introduction
10.3.2 Dissipative Shorting Plugs
10.3.3 Removing Cryostat Wiring
10.3.4 Installing Cryostat Wiring
10.3.5 Removing Detector Housing
from Cryostat
10.3.6 Installing Detector Housing
In Cryostat
10.3.7 Removing Detector From
Detector Mount Board
10.3.8 Installing Detector In
Detector Mount Board
10.4 Configuring the SDSU
Controller Boards
10.4.1 Introduction
10.4.2 Dual Channel Video
Processor Board
10.4.3 Clock Driver Board
10.4.4 Timing Board
10.5 Assembling the OIWFS Detector
Controller DSP Code
10.5.1 Introduction
10.5.2 Assembling Dual Channel
Video Processor Board DSP Code
11.1 Introduction
11.2 Connecting and Disconnection
the Detector Controller From the Cryostat
11.3 Introduction
11.3.1 Dissipative Shorting Plugs
11.3.2 Disconnecting the Detector
Controller From the Cryostat
11.3.3 Connecting the Detector
Controller to the Cryostat
11.4 Assembling and Disassembling
the Detector and Detector Cryostat Wiring
11.4.1 Introduction
11.4.2 Dissipative Shorting Plugs
11.4.3 Removing Flex Circuits
11.4.4 Installing Flex Circuits
11.4.5 Removing Detector Housing
11.4.6 Installing Detector Housing
11.4.7 Removing Detector from
Detector Housing
11.4.8 Installing Detector in the
Detector Housing
11.4.9 Removing Detector Mounting
Board from Detector Housing
11.4.10 Installing Detector
Mounting Board in the Detector Housing
11.5 Configuring the SDSU
Controller Boards
11.5.1 Introduction
11.5.2 Quad Channel Coadder Video
Processor Board
11.5.3 Clock Driver Board
11.5.4 Timing Board
11.5.5 Video Switch Board
11.6 Assembling the Detector
Controller DSP Code
11.6.1 Introduction
11.6.2 Assembling VME Interface
Board DSP Code
11.6.3 Assembling Timing/Coadder
Video Processor Boards DSP Code