Difference between revisions of "Harp scan plan"
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(Created page with "__TOC__ == Set up harp scan == # Ask MCC to stop beam delivery in preparation for harp scans # Remove all radiators (BLANK or RETRACTED) # Move collimator to blocking po...") |
(→Perform radiator harp scan) |
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== Perform accelerator harp scans == | == Perform accelerator harp scans == | ||
| − | # Ask MCC for three harp scans: 5C11, 5C11B | + | # Ask MCC for three harp scans: 5C11, 5C11B with 1 uA of tune beam |
#* Remind MCC that all three should be done with tune beam | #* Remind MCC that all three should be done with tune beam | ||
| Line 22: | Line 22: | ||
# Ask MCC to take beam away and mask FSD for radiator movement | # Ask MCC to take beam away and mask FSD for radiator movement | ||
| − | # Insert desired radiator (diamond or 3x10^-4 RL amorphous) | + | # Insert desired radiator (e.g., diamond or 3x10^-4 RL amorphous) |
# Amorphous radiator retracted | # Amorphous radiator retracted | ||
| − | # Move collimator to 5.0 mm diameter hole (can be done in parallel with previous | + | # Move collimator to 5.0 mm diameter hole (can be done in parallel with previous steps) |
# Ask for the appropriate current CW beam to be restored | # Ask for the appropriate current CW beam to be restored | ||
# Refer to [https://halldweb.jlab.org/hdops/wiki/index.php/Standard_Production_Running_Conditions this wiki page] for standard production conditions | # Refer to [https://halldweb.jlab.org/hdops/wiki/index.php/Standard_Production_Running_Conditions this wiki page] for standard production conditions | ||
Latest revision as of 18:23, 3 March 2020
Contents
Set up harp scan
- Ask MCC to stop beam delivery in preparation for harp scans
- Remove all radiators (BLANK or RETRACTED)
- Move collimator to blocking position
Perform accelerator harp scans
- Ask MCC for three harp scans: 5C11, 5C11B with 1 uA of tune beam
- Remind MCC that all three should be done with tune beam
Perform radiator harp scan
- Ask for 200 nA CW beam
- Perform radiator harp scan as described in this wiki page
Restore Production conditions
- Ask MCC to take beam away and mask FSD for radiator movement
- Insert desired radiator (e.g., diamond or 3x10^-4 RL amorphous)
- Amorphous radiator retracted
- Move collimator to 5.0 mm diameter hole (can be done in parallel with previous steps)
- Ask for the appropriate current CW beam to be restored
- Refer to this wiki page for standard production conditions
