Production Run Plan GMp Dedicated Time L-HRS and R-HRS

Proton Elastic Kinematics

* If you need to increase the spectrometer momentum setting, make sure you cycle Q2 and Q3 as per the cycling procedure.
* Elastic electron rates assume 60 μA on 15 cm LH2 target, 5 mSr acceptance.
* Use the following prescale factors: ps1=1, ps2=1, ps3=1, ps8=100. All other triggers should have zero prescale factor.
* For the optics pointing run, decrease the spectrometer momentum for the left and right spectrometers to 0.85 GeV/c.  The right dipole will need about 2-3 hours to settle.
* Take a one hour run on the optics target.
* After the optics run is completed, then increase the spectrometer momentum back to the elastic setting.  Again, the right dipole will need about 2-3 hours to settle
 
  Make sure to cycle the right Q2 and Q3 when increasing the momentum.

* The 15 cm dummy runs need to be taken at the elastic setting.  So keep the momentum as is for this run. 
* We should take dummy target data to accumulate at least 10% of the LH2 statistics.
* A GMp expert will check the data quality.

• Left-HRS Kinematics: 4th Pass (E_beam = 8.8 GeV)
  Time estimate: 4 days @ 60 μA

Target	Raster	Ebeam [GeV]	P0 [GeV/c]	θe [deg]	Q2 [GeV2]	Electron Rate [Hz] at 60 μA	PAC days at 60 μA	Real Time at 60 μA
15 cm LH2	2 x 2 mm2	8.841	2.503	43.0	11.89	0.11	4 (for 38k events)	N/A
Optics	Off	8.841	0.85	43.0	4.04	31	N/A	0.5 hour (for 55k events)
15 cm Dummy	2 x 2 mm2	8.841	2.503	43.0	11.89	----	N/A	at least 1 hour

• Right-HRS Kinematics: 4th Pass (E_beam = 8.8 GeV)
  Time estimate: 4 days @ 60 μA

Target	Raster	Ebeam [GeV]	P0 [GeV/c]	θe [deg]	Q2 [GeV2]	Electron Rate [Hz] at 60 μA	PAC days at 60 μA	Real Time at 60 μA
15 cm LH2	2 x 2 mm2	8.841	2.101	48.75	12.65	0.054	4 (for 18k events)	N/A
Optics	Off	8.841	0.85	48.75	5.12	14.7	N/A	0.5 hour (for 26k events)
15 cm Dummy	2 x 2 mm2	8.841	2.101	48.75	12.65	----	N/A	at least 1 hour