Background
Two STA5200 CCD detectors were received from STA on 31 August 2021. The shipment included integrated CryoTel coolers with active vibration cancellation, two Archon detector drive units, two cooler control units, and all necessary interconnection cabling.
The vendor delivered test reports for each sensor, referenced here:
These reports show detector performance in compliance with our requirements (<5 electrons rms noise, 200Hz frame rate, 10um spatial resolution).
Also available for reference:
- Operating Manual for the STA5200 Detector System
- Operating Manual for the CryoTel Controller
- Operating Manual for the Archon Controller
The SN31179 system was installed to a vacuum chamber for laboratory testing. Photos are available here.
A summary of the acceptance tests and results follows.
Vibration Tests
Initial tests to verify the 100nm positional stability requirement were carried out with the help of Georg Gassner.
STA provided a sample vibration spectrum measured with their confocal setup in the course of a flatness measurement: