Difference between revisions of "Current short term run plan"

Latest revision as of 21:19, 7 November 2008

November 7th 2008 5.9 GeV 5 pass beam

MCC is performing ion chamber calibration. Was done using BeO and will finish with the Reference cell.

Plan is :

• Kalyan coincidence trigger test
• Check beam properties beam profile with HARP with <math>\sigma_{x}</math> and <math>\sigma_{y}</math> around 150 <math>\mu m</math> and beam position

For the solid targets and reference cell

BPM A (1.0,4.0) BPM B (-1.0,4.0)

• Ask for raster on, request (4.5x4 mm to MCC this should get 3x3 mm on target. Check with spot

• Go to reference cell with N2 135 psig for ion chamber set point, this should be the densest target which will be used

• Go back to BeO, go to 5 uA with raster off

• Bull's eye scan ( Vince )

• Helium 3 running

Move to empty target

Go to tune beam 1uA BPM A (1.0,4.0) BPM B (-1.0,4.0)

• Helium 3 centering check

Go to 2uA CW Change raster size and check the trigger rates, record scaler rates on HALOG

• raster 2x2mm
• raster 3x3mm
• raster 4x4mm
• raster 5x5mm

if rate on 5x5mm = rate at 4x4 mm, we can go to production

• page Xin to turn on BB HV at 584 5648

• Check target is polarized

• Check rate to find optimum running current

• Stay at this current in twoarmFB and take production data

• Few run with RICH could be requested

Subsytems checks

• HRS

--A1 --RICH --S1 --S2m --Gas Cerenkov --pion rejector

• BigBite

-MWDC -shower -Gas Cerenkov

• Target

-polarization -spin flip -EPR -NMR -COMET laser -EPICS