Difference between revisions of "How to take HARP scan"
From Hall A Wiki
(New page: 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...) |
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* Request 8 uA tune beam | * 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 ) | *In Monticello, go in first HARP menu, select HARP expert controls and open panels for 1H05A and 1H04 ( bottom right of expert screen ) | ||
| + | [[Image:Monticello.png]] | ||
*Make sure speed is set to 1 | *Make sure speed is set to 1 | ||
| + | [[Image:1HA1H04.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 | ||
| − | * | + | * If you see 3 distinct peaks the HARP scan is good, take another one if beam tripped during the HARP scan |
| + | [[Image:HARp-1HA05plot.png]] | ||
Latest revision as of 18:30, 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
- If you see 3 distinct peaks the HARP scan is good, take another one if beam tripped during the HARP scan
