How to reboot the cryotarget IOC?
You need to reboot the target IOC if the strip charts have flatlined, and/or the heartbeat GUI has stopped beating, or some of the normal functions stopped working (for example, you can not move the target). Don’t panic, the target remains in PID mode even when the IOC has died. But you’re running blind until you reboot. During the reboot, the PID mode goes off. For the deuterium target, to prevent any potencial of freezing (freezing temperature is 18.7 K), a constant auxillary power supply should be used before robooting the IOC. For the helium and the hydrogen targets, you can proceed directly to rebooting the IOC. The first thing to do is inform the shift leader that you need to reboot cryotarget IOC so the shift leader (or you) can stop run. For deuterium target only: Before you reboot, you have to supply a constant auxillary power to the heaters. You need to know approximately what the heater power is for the deuterium loop when the beam is off. It is a good idea to write this dow
