Note: these instructions may change as we learn from the target.
- Start with Ca-40 target at 50uA
- Take data for 1 hour, carefully monitoring:
- asymmetry widths
- collimator temperatures (expect ~ W at 50uA)
- cold ladder temperatures
- If everything seems okay, go to 100 uA on Ca-40
- Follow steps from 1 above
- If everything seems okay, go to 150 uA on Ca-40
Explanation: The calcium oxidizes very quickly, and the presence of oil residue or an oxide layer could affect the thermal contact/conductivity so we want to carefully ablate the surface layer and make sure that we have stable target conditions to avoid damaging it with high current.