[PEPPo] End Game Discussion

[Arne Freyberger]

I've placed a proposal for the remaining 14shifts at: 
https://positron.jlab.org/wiki/index.php/Arne%27s_proposal   we will 
discuss the end game this afternoon in the control room.   Here is my 
prioritized list that I used to populate this schedule, clearly we 
cannot do everything we want to and some hard choices have to made.  
Hopefully we make smart ones.....


    1 PEPPo End Game Positron SELECT

2012-06-21 Thu 09:47


      1.1 Priorities

  * MUST Measurements in or required by the proposal
  * SHOULD Measurements that support (but not required) proposal goals
  * LIKE Measurements that are of general interest for positrons and
    this is a unique time to make these measurements.
  * As of this note: total number of shifts: 14


      1.2 Table of tasks


What 	Priority 	BeamTime 	Comment

	
	(shift) 	
0.1mm 3.2MeV/c 	Must 	4 	goal 20M events
e+ E profile 	Must 	1 	requires DAQ change

	
	Total 	5
0.5mm 3.2MeV/c or 0.1mm 4.2MeV/c 	Should 	5 	goal 20M events
e- E profile calibration 	Should 	1 	Calibrate E counter

	
	Total 	6
e+ transverse profile 	Like 	1 	if FA works
NaI coincidence/Annihilation 	Like 	1 	requires NaI reconfiguration
High Quality Mott at End (<2%) 	Like 	0.5 	
e+ bunchlength 	Like 	1 	BFM, DAQ change
PMT5 background run w/ high background 	Like 	0.5 	shielding change
e+ bunchlength w/ high background 	Like 	1 	BFM, DAQ change, shielding 
change
E measurements e+ w/ high background 	Like 	1 	DAQ change, shielding change
e+ disc & I_beam scans with high background 	Like 	1 	shielding change
Mott 5.5MeV/c Dry Runs 	Like 	4 	

	
	Total 	13.5

Date: 2012-06-21 12:41:23 EDT

Author: Arne Freyberger

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-- 
Arne Freyberger
Director of Accelerator Operations
Jefferson Lab           Office: (757) 269-6268
12000 Jefferson Avenue  Cell:   (757) 876-6289
Newport News, VA 23606  Email:  freyberg at jlab.org

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