Difference between revisions of "How to take HARP scan"
From Hall A Wiki
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[[Image:Harp1H05.png]] | [[Image:Harp1H05.png]] | ||
*In Monticello, go in second HARP menu ( ! ) choose HARP analyzer | *In Monticello, go in second HARP menu ( ! ) choose HARP analyzer | ||
| + | [[Image:Harp-analyzer.png]] | ||
*Select the Hall A harp to use | *Select the Hall A harp to use | ||
*Click on Initiate scan | *Click on Initiate scan | ||
*If signals saturates, reduce gain on the corresponding HARP and take another scan | *If signals saturates, reduce gain on the corresponding HARP and take another scan | ||
| − | * Once done, go to 50 nA, take a run | + | * Once done, go to 50 nA, take a run, with ps8=1 |
Revision as of 18:23, 9 April 2012
After first initial tune, we want at least one HARP scan on 1HA05A to determine absolute beam position after chicane change.
- Request 8 uA tune beam
- In Monticello, go in first HARP menu, select HARP expert controls and open panels for 1H05A and 1H04 ( bottom right of expert screen )
- Make sure speed is set to 1
- In Monticello, go in second HARP menu ( ! ) choose HARP analyzer
- Select the Hall A harp to use
- Click on Initiate scan
- If signals saturates, reduce gain on the corresponding HARP and take another scan
- Once done, go to 50 nA, take a run, with ps8=1
