Beam Parameters
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Contents
Circ Raster for GeN
- Requirments from the Collaboration
- Circ raster params used in Hall C (A1n/d2)
- Pre-beam work: circ raster with the Hall C waveform
- First beam into the hall
Beam Parameters
The beam parameters submitted to the Hall A Accelerator Physics Experiment Liaison are posted to the SBS doc-db:130.
Data Analysis
Cable Mapping
The cable mapping for the beam line signals from the beam line racks 1H75B04 and 1H75B10 over to the SBS bunker and the LHRS are posted to the SBS doc-db:131.
Target Lock Positions
Target Lock positions for center of carbon hole as determined during the beam centering and raster calibration program for each beam energy. The beam positions should be read from BPM1H04A and BPM1H04E and should both be the same to get a low angle orbit coming in to the target. The SBS setting is the current in the magnet relative to its full nominal value of 2100 A. The sign indicates the polarity.
| Date | Pass | Beam Energy [GeV] | X [mm] | Y [mm] | SBS Setting | HALOG Entry |
| 10/13/21 | 1 | 1.92 | -0.8 | 0.4 | OFF | https://logbooks.jlab.org/entry/3924012 |
| 10/15/21 | 1 | 1.92 | -0.8 | 0.9 | +100% | https://logbooks.jlab.org/entry/3925482 |
| 10/21/21 | 2 | 3.70 | -0.7 | 0.6 | +30% | https://logbooks.jlab.org/entry/3929339 |
| 11/13/21 | 4 | 7.91 | -0.7 | 0.7 | +0% | https://logbooks.jlab.org/entry/3942249 |
| 11/13/21 | 4 | 7.91 | -0.7 | 0.7 | +85% | https://logbooks.jlab.org/entry/3942316 |
| 11/24/21 | 5 | 9.86 | -0.7 | 0.7 | +100% | https://logbooks.jlab.org/entry/3949803 |
| 11/26/21 | 5 | 9.86 | -0.7 | 0.7 | +100% | https://logbooks.jlab.org/entry/3951057 |
| 01/11/22 | 3 | 6.00 | -1.8 | 0.8 | +70% | https://logbooks.jlab.org/entry/3969692 |
| 01/15/22 | 3 | 6.00 | 0.5 | 0.1 | +70% | https://logbooks.jlab.org/entry/3972215 |
| 01/21/22 | 3 | 6.00 | 0.2 | 0.1 | +70% | https://logbooks.jlab.org/entry/3975148 |
| 01/27/22 | 3 | 6.00 | 0.2 | 0.3 | +100% | https://logbooks.jlab.org/entry/3977685 |
| 02/01/22 | 2 | 4.03 | 0.2 | 0.7 | +70% | https://logbooks.jlab.org/entry/3980712 |
Raster Set Values
Raster set values in MCC units to produce a (height x width) = 2 mm x 2 mm pattern at the target for each beam energy.
| Date | Pass | Beam Energy [GeV] | Height [mm] | Width [mm] | SBS Setting | HALOG Entry |
| 10/13/21 | 1 | 1.92 | 0.8 | 2.0 | OFF | https://logbooks.jlab.org/entry/3924012 |
| 10/15/21 | 1 | 1.92 | 0.8 | 2.0 | +100% | https://logbooks.jlab.org/entry/3925482 |
| 10/21/21 | 2 | 3.70 | 3.0 | 1.0 | +30% | https://logbooks.jlab.org/entry/3929339 |
| 11/13/21 | 4 | 7.91 | 1.1 | 0.9 | OFF | https://logbooks.jlab.org/entry/3942249 |
| 11/13/21 | 4 | 7.91 | 1.1 | 0.9 | +85% | https://logbooks.jlab.org/entry/3942316 |
| 11/24/21 | 5 | 9.86 | 2.1 | 2.7 | +100% | https://logbooks.jlab.org/entry/3949485 |
| 11/26/21 | 5 | 9.86 | 1.0 | 2.3 | +100% | https://logbooks.jlab.org/entry/3951014 |
| 01/11/22 | 3 | 6.00 | 1.0 | 1.2 | +70% | https://logbooks.jlab.org/entry/3969691 |
| 01/15/22 | 3 | 6.00 | 1.0 | 1.2 | +70% | https://logbooks.jlab.org/entry/3972215 |
| 01/21/22 | 3 | 6.00 | 0.9 | 0.75 | +70% | https://logbooks.jlab.org/entry/3975172 |
| 01/27/22 | 3 | 6.00 | 0.9 | 0.75 | +100% | https://logbooks.jlab.org/entry/3977685 |
| 02/01/22 | 2 | 4.03 | 1.00 | 0.75 | +70% | https://logbooks.jlab.org/entry/3980695 |
