Spectrometer | Momentum | Angle | Collimator |
Electron | 3.459 GeV | 16.12° | 6msr |
Proton | 1.202 GeV | 53.06° | 6msr |
Spectrometer | Dipole | Q1 | Q2 | Q3 |
Electron | 1.36131 T | 2587.94 A | 1481.20 A | 1369.49 A |
Proton | 0.4434 T | 898.511 A | 514.260 A | 285.0 A |
The electron quads are all set to negative polarity. The hadron Q1 set to positive polarity, but Q2 is set to negative polarity. Set hadron Q3 to negative polarity for defocussing ( The value in the table is also decreased by 60For a first guess at current for electron dipole either scale from earlier run or use 909 A/T. Suggest that the electron dipole be set to 10-3 level and then quads scaled to match.
The trigger setup should be proton_1170-1700.settings .
The goal is 10,000 events which scatter between 5 - 20° in the carbon analyzer for each carbon thickness. Estimate that it will take 10 minutes per carbon thickness.