**** Note: This page will be updated as camera is integrated into DAQ and IOCs are created ****
This is a how-to for a single camera. Ultimately, there will be two CCDs at qRIXS.
Initializing and cooling down camera
In order to operate the CCD, it needs to be cooled down first. We apply constant cooling to the detector using the CryoTel and PID-regulated heating using the Archon to bring the detector down to -100C.
Bring up the CryoTel and Archon screens under the qRIXS tab in the RIX home screen.
CryoTel:
Hit the "Power" button to start cooling the detector down. The minimum output power allowed by this device is 60W, and that alone will bring the camera down to colder temperatures than we want. So do NOT increase power. And DO NOT press "ON" or the CryoTel will try to get to the target temperature using its PID.
Archon
Archon controls are on 2 screens currently. The "parent" screen (left) is accessed through the home screen (labeled "CCD"), and the "child" screen (right) is accessed by pressing "STA5200".
Power, bias voltage, and heater controls are on the child screen. Under "Power", turn power on and make sure bias voltage is set to "NV1".
Under "Heater", set the target temperature to -100C and turn the heater on. Here are the heater settings, these should not be changed.
The detector takes ~1hr to cool down completely.
Running camera in DAQ
Setup
| Settings to change | 1d | 2d |
|---|---|---|
| Readout Mode | FVB | Image |
| Bins | 1, 1 | 1, 1 |
| Image Size | 4800, 1 | 4800, 1200 |
| LineScan Mode | Enable | Enable |
| Fixed Rate | 100Hz | 1Hz |
| Synced Policy/Status | INTERNAL | INTERNAL |
The first 4 parameters can be found under "Readout" and "Collect" in the archon child screen, and last 2 are on the parent screen in the "Timestamps" section.
Note from Dan Damiani: "Synced mode won't work properly in batched mode (all the frames in the batch will get the same timestamp). INTERNAL mode needs to be used for batched mode. This script can do it in an automated way: /cds/home/d/ddamiani/sync_timing.sh QRIX:STA:CCD:01 RIX:CCD:TPR:01:CH01 "
NOTE: make sure to "Stop" acquisition when changing settings, and "Start" after to apply changes.
In order to turn the camera off and warm it up:
- Turn the cryotel OFF.
- Turn archon power OFF.
- Set the Heater to 10C.
- After it's warmed up (~2hrs), turn Heater OFF.
DAQ/AMI:
NOTE: everything in the above screens is "expert mode". Users (and POCs for the most part) should not need to access all of this information. Controls group is working IOCs with interlocks to simplify CCD operation.
Controls Schematic
