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)
  • No need to sign NDA
• 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