Difference between revisions of "Detailed plan for testing production SiPM units"
From GlueXWiki
(→Track performance of sensors during light irradiation in the fiber lab (low radiation, guestimated to be about 0.01 Gy/month)) |
|||
| Line 12: | Line 12: | ||
# Repeat measurements performed at room temperature, but at a nominal operating temperature | # Repeat measurements performed at room temperature, but at a nominal operating temperature | ||
# If possible measure the dark rate in this configuration. | # If possible measure the dark rate in this configuration. | ||
| − | == | + | == Low irradiation == |
| + | # low radiation, guestimated to be about 0.01 Gy/month) | ||
# Place 6-8 arrays in a box with Sr source (Keep a few for reference) | # Place 6-8 arrays in a box with Sr source (Keep a few for reference) | ||
# Arrays should be powered continuously | # Arrays should be powered continuously | ||
| Line 18: | Line 19: | ||
# Arrays should be exposed to temperature cycles | # Arrays should be exposed to temperature cycles | ||
# Output may be monitored using a picoAmmeter | # Output may be monitored using a picoAmmeter | ||
| + | |||
== Track performance of sensors during more realistic exposures to radiation (e.g. Hall B). == | == Track performance of sensors during more realistic exposures to radiation (e.g. Hall B). == | ||
Revision as of 14:08, 26 August 2009
Discussion notes of July 23, moved to this page for future development.
Contents
Testing of electronic components (Fernando)
- Fernando showed a tentative SiPM_Dev_Schedule, showing that testing of the electronics should be completed by mid Sep.
- Output of the preamp will be one signal per array.
Single sensor tests at room temperature (Carl)
- Check that all cells are operational by scanning across array.
- Calibrate a light source and determine a (relative) gain for each cell. Determine PDE if possible.
- Measure dark current. (Dark rate is not possible at room temperature).
Single sensor tests at 5 deg (nominal) (Carl)
- Install Peltier on each sensor gluing the Peltier to the "hot plate" and attaching the hot plate to the sensor package using a thermal paste.
- Repeat measurements performed at room temperature, but at a nominal operating temperature
- If possible measure the dark rate in this configuration.
Low irradiation
- low radiation, guestimated to be about 0.01 Gy/month)
- Place 6-8 arrays in a box with Sr source (Keep a few for reference)
- Arrays should be powered continuously
- Arrays should be operated at the nominal operating temperature (~5deg) using Peltier
- Arrays should be exposed to temperature cycles
- Output may be monitored using a picoAmmeter
