PPT Slide
Mitigation for Photoconductor
- Stimulator flashes included in normal data-taking at 1/(~ 2 min).
- Will allow calibration to be tracked and fitted.
- Extensive modeling of basic physics is underway to understand the details
- For example, the effects of a stimulator flash on the calibration it is measuring.
- Extensive ground testing of fight detectors under typical observing conditions.
- Scan mirror allows rapid modulation of signals so all measurements rely
as much as possible on the “fast” response.
- Pure fast response has excellent photometric characteristics.
- Strategies included to anneal detectors to remove CR effects periodically: all
work by flooding detector with charge carriers to restore equilibrium.
- Thermal anneal raises detector temperature briefly.
- Bias boost causes the detector to break down electrically.
- Photon flood illuminates it with a bright source.
- Raw data frames sent to ground to permit further optimization of reduction.
- Coadds of adjacent frames can be used to reduce data rate.
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