Beam startup/recovery Procedure: This procedure is required for every long period (>2hrs) of absence of beam.

• Beam energy lock: ON Hall A.
• Fast feedback lock: ON
• Target: empty or BeO as needed.
• Beam entrance and exit window cover OUT.
• Beam tune straight, not through Compton magnets.
• Verify settings of target Ion chamber trip limit (MCC with Radcon).
• Center beam on the BeO target's cross mark.
• Record BPM A and B readings in (x, y).
  
• Ask for harp scan, require that beam $\sigma_x$: 100 - 300microns, $\sigma_y$:100 - 300microns on two hall A harps.
• Establish the beam position on the target, use the holey target to determine a proper raster size (in both MCC and hall units) by a raster scan. Follow the following steps for the raster scan. Ask for 2$\mu$A beam and change the raster size according to the following steps, check the trigger rates on scaler (record them and halog), take CODA runs, do spot++ (halog the spot++ plots), find out carbon hole in spot++ (halog it);
  1. 2 mm x 2 mm raster
  2. 3 mm x 3 mm raster
  3. 4 mm x 4 mm raster
  4. 5 mm x 5 mm raster
  5. Change the raster size in increasing steps until rates go a dramatically high value. If the beam hits a target frame, the rate will shoot up.
• If the rate on each raster size is the same in above 4 steps, we can take beam for commissioning (or production). Ask for the raster size so as to get the beam of size 3 mm x 3 mm on target. Make sure the carbon-hole appears in the middle of the raster pattern. If not, coordinate with MCC to change the BPM positions so as to put it in the center of the raster pattern. [Raster ON is required to see the hole, no raster, no hole. To see a better hole, use a clock trigger (T8), prescale away physics triggers.]
• Check signals from lumi-monitors, beam position monitors, beam charge monitors.
• Lumi readings can be clearly lined up with real triggers in time? Fast clock serves as a time mark.
• Happex beam charge feedback check.