Wednesday, Mar. 30: OWL Shift

Go back to Daily Run Plan Daily Run Plans

Previously...

• MCC restore the beam Hall-A
• Spot++ for beam centering with C-hole target
• repair 5pass separator (not done!)

Specific mission

• Note:
  

NO beam over night due to RF separator problem !

1/ Spin-dance (Moller measurement)

postpone...

2/ Any chance of opportunity of good beam for physics
(beam goes straight ! not through chicane)
DVCS: Kin_48_4

- 15uA

- LH2 target

- DVCS ON

- Calo_theta= 10.1(deg), Distance = 2.5m (from target)
- LHRS=3.36GeV, angle=24.925(deg), Q1/Q2/Q3=1916.640(readout:1900)/1600/1600 (Q1 regul.OFF)

- RHRS=2.204GeV, angle=48.75(deg)

- PreScaleR : PS1=PS2=PS3=1, && PS8=200

- PreScaleL : PS9 =1, + DVCS config.


- Raster : 2x2mm^2 

Tentative plan:

Wednesday:
Arc energy measurement : Doug (Morning)
Moller measurement : Sasha (Afternoon)

Establish the beam through Compton chicane: Dave & Yves

Thursday:
MCC beam study

BPM/Spot++ Check

• After beam lost for considerable time (like beam study, pass change,...)
• Ask MCC to run 5uA wth carbon hole target and make sure you can see the hole through Spot++

• Beamline commissioning how-to.