This meeting took place on Friday 28 May 2010.
Technical Meeting #5: Camera Selection
Agenda
- Test results from Andor and Princeton EMCCD Cameras
- Comparison
- Other cameras?
- Conclusions/next steps
Discussion Material
See FTTPriv:CamCompareTable.
Conclusions
- Reject Princeton Instruments ProEM 512B due to heat dissipation (and probable lack of Linux support)
- Andor iXon+897 is preferred camera; adopt Hamamatsu EMCCD as fall-back option
- Use loan Princeton camera to try out a test to measure CCD chip stability with temperature
- Seek to borrow Andor camera (e.g. from AMOP) for stability test
- Arrange visit to Andor HQ to help mitigate remaining risks
Task Assignments
New tasks are in red.
Completed Tasks
- DFB: Write down initial latency and frame rate requirements with brief justification
- Calculate for 40Hz bandwidth requirement as well as 50Hz goal
High Priority Tasks
- EBS & DMAW: Design and set up CCD stability test
- EBS & CAH: Enquire about borrowing Andor camera from AMOP group
- EBS & XS: Arrange visit to Andor
- MF: Determine minimum size of camera enclosure
- MF & ADR: Use camera enclosure size to refine reflective and transmissive layouts
- ADR: Final layout/stability budgets for refined layouts: one reflective and one transmissive
- XS: Look at drawing of Nasmyth table and support structure, advise JSY of follow-up queries
- XS: Conceptual design of unadjustable dichroic mount
- XS: Model effect of temperature gradient on stability of dichroic in above mount
- JSY: Define software components and inter-component dataflows (hardware-independent)
- JSY: Ask Chris Mayer for field rotation rate
- Received holding response
Medium Priority Tasks
- EBS: Add column for Hamamatsu camera to comparison table
- Send questions to Hamamatsu if necessary
- MF: Thermal modelling of camera enclosure to refine derived requirements
- MF: Look for missing derived requirements using N^2 diagram
- TBA: Calculate seasonal focus change
- EBS: Look for 1U or 2U computers with 2 PCI slots drawing < 150W
Low Priority Tasks
- ADR: Analyse EMCCD noise measurements
- ADR: Dialogue with OAP manufacturer re referencing to optic axis of finished component
Next Meetings
TBD