Difference between revisions of "Start-up plan"
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== Start-up run plan == | == Start-up run plan == | ||
| + | Update (Feb. 9, 9AM) | ||
| + | |||
Item 1-4 to be done by the MCC. | Item 1-4 to be done by the MCC. | ||
RC will be at the MCC and help communicating with the shift crew. | RC will be at the MCC and help communicating with the shift crew. | ||
* Beam and target alignment | * Beam and target alignment | ||
| − | 1. Beam to the dump. Septum off, no target. | + | 1. Beam to the dump. Septum off, no target.(DONE) |
| − | 2. ion chamber calibrations. Yves has | + | 2. ion chamber calibrations. Yves has an aluminium target to insert. |
| − | 3. Beam and target alignment (1x1 raster, | + | 3. Beam and target alignment (1x1 raster, vertical wire target, S3 scintillator. setting ready for MCC). |
| + | - [https://logbooks.jlab.org/entry/3649271 Yves's instruction]: ELOG 3649271 | ||
| + | - Contact Silviu before start | ||
| + | - After done with the wire target, ask beam on carbon hole and do spot++. | ||
4. Set corrector magnets with septum on. Beam to dump. Will be done quickly. | 4. Set corrector magnets with septum on. Beam to dump. Will be done quickly. | ||
| Line 13: | Line 18: | ||
** Check online replay plots. Experts will be at the CH to check. | ** Check online replay plots. Experts will be at the CH to check. | ||
** scaler rates: post snapshots to halog | ** scaler rates: post snapshots to halog | ||
| − | * Optics calibrations (Experts: Bogdan, John, Vardan, ...) | + | * Optics calibrations (Experts: Bogdan, John, Vardan, Ed...): |
| − | ** Set the spectrometer magnets: [https://hallaweb.jlab.org/wiki/index.php/How_to_set_HRS_magnets] | + | ** Set the spectrometer magnets if not done yet: [https://hallaweb.jlab.org/wiki/index.php/How_to_set_HRS_magnets] |
| − | ** Start with RHRS. Set LHRS (positive polarity) RHRS (negative polarity) | + | ** initial tune: p0: 1.28 GeV, polarity: LHRS (pos), RHRS (neg) |
| − | ** Once the right arm is finished, move on to the LRHS. Set LRHS (neg) RHRS (pos). Leave the polarity as it is for the production. | + | OPTICS |
| + | Left arm (1.28 GeV) | ||
| + | Q1:177.83 | ||
| + | Q2:523.008 | ||
| + | D:435.085 | ||
| + | Q3:614.72 | ||
| + | |||
| + | Right arm (1.28 GeV) | ||
| + | Q1:170.778 | ||
| + | Q2:522.726 | ||
| + | D:442.522 | ||
| + | Q3:614.4 | ||
| + | Septum:1104.05 | ||
| + | |||
| + | ** Start with RHRS. Set LHRS (positive polarity) RHRS (negative polarity) | ||
| + | ** Once the right arm is finished, move on to the LRHS. Set LRHS (neg) RHRS (pos). Leave the polarity as it is for the production. | ||
| + | |||
| + | |||
* BPM calibration. Instruction: [[BPM]] | * BPM calibration. Instruction: [[BPM]] | ||
Latest revision as of 10:08, 9 February 2019
Start-up run plan
Update (Feb. 9, 9AM)
Item 1-4 to be done by the MCC. RC will be at the MCC and help communicating with the shift crew.
- Beam and target alignment
1. Beam to the dump. Septum off, no target.(DONE)
2. ion chamber calibrations. Yves has an aluminium target to insert.
3. Beam and target alignment (1x1 raster, vertical wire target, S3 scintillator. setting ready for MCC).
- Yves's instruction: ELOG 3649271
- Contact Silviu before start
- After done with the wire target, ask beam on carbon hole and do spot++.
4. Set corrector magnets with septum on. Beam to dump. Will be done quickly.
Once Yves is done and MCC is ready to deliver CW beam to Hall A:
- Detector checkout:
- do in parallel with optics runs.
- Check online replay plots. Experts will be at the CH to check.
- scaler rates: post snapshots to halog
- Optics calibrations (Experts: Bogdan, John, Vardan, Ed...):
- Set the spectrometer magnets if not done yet: [1]
- initial tune: p0: 1.28 GeV, polarity: LHRS (pos), RHRS (neg)
OPTICS
Left arm (1.28 GeV) Q1:177.83 Q2:523.008 D:435.085 Q3:614.72
Right arm (1.28 GeV) Q1:170.778 Q2:522.726 D:442.522 Q3:614.4 Septum:1104.05
- Start with RHRS. Set LHRS (positive polarity) RHRS (negative polarity)
- Once the right arm is finished, move on to the LRHS. Set LRHS (neg) RHRS (pos). Leave the polarity as it is for the production.
- BPM calibration. Instruction: BPM
