[Bteam] Schedule June 21-23 injector work

[Jay Benesch]

Mike Tiefenback has ceded the B team meeting slot this week for 
discussion and scheduling the work required June 21-23 to set up the 
injector and machine for Qweak.

Below I copy an email Matt Poelker sent 19 May listing injector tasks 
for Qweak.  Attached is a draft schedule including many of these tasks 
and the energy change.

At the meeting we will revise this schedule and attach names to 
activities.

Thank you.

Jay

> -------- Original Message --------
> Subject: 	qweak injector tasks
> Date: 	Wed, 19 May 2010 11:03:49 -0400
> From: 	Matt Poelker <poelker at jlab.org>
> Organization: 	Jefferson Lab
> To: 	Roger D. Carlini <carlini at jlab.org>, Greg Smith <smithg at jlab.org>, Kent Paschke <paschke at jlab.org>, Riad Suleiman <suleiman at jlab.org>, Joe Grames <grames at jlab.org>, John C. Hansknecht <hansknec at jlab.org>, Reza Kazimi <kazimi at jlab.org>
> CC: 	Arne Freyberger <Freyberg at jlab.org>, Matt Bickley <bickley at jlab.org>, Steve Suhring <suhring at jlab.org>
> 
> 
> Here's list of action items stemming from yesterday's meeting, a list of 
> things we need to do for Qweak.  Joe, Riad, John and I will schedule 
> this stuff, with Ops input.
> 
> 1) sometime during beam studies, and before June 20, the Hall C beam can 
> be benchmarked with today's pockel cell (2 four hour blocks?).  Beam 
> quality should be pretty good, assuming the C laser lies on top of the A 
> laser.
> 2) the photocathode will need to be heated/reactivated before running 
> QWeak (two shifts)
> 3) laser table studies of the pockel cell alignment for Hall C beam 
> could happen during photocathode heat/reactivation.  The cell will be 
> swapped to (hopefully) eliminate residual ringing, then perform HAPPEx 
> alignment procedure (Kent, OK?, 16 hours)
> 4) photocathode can be rotated if necessary to minimize HC asymmetries
> 5) Wien filter calibration, part 2.  I guess during beamstudies before 
> June 20
> 6) After Prex ends, and before summer shutdown, run 180uA using 100kV 
> gun, assess beam quality, target studies
> 7) Spin dance needs to happen, to minimize transverse polarization.  But 
> no Hall C polarimeter.....
> 8) John devise a means to quantify ringing on once/wk basis.  An access 
> to laser table can be made, but remote measurement preferable.
> 9) install hand-wound A1 corrector to improve steering through A1 and A2
> 
> Deferred to summer shutdown:
> 1) 4 peak charge asymmetry IA electronics installation, commissioning
> 2) Gun hi-potting to 150kV
> 3) injector setup with 125kV gun, or higher
> 4) new A1 assembly installation, beamline bakeout
> 
> Did I forget anything?
> Matt

-------------- next part --------------
A non-text attachment was scrubbed...
Name: June21_23.doc
Type: application/msword
Size: 33792 bytes
Desc: not available
URL: <https://mailman.jlab.org/pipermail/bteam/attachments/20100614/ccc109b6/attachment-0002.doc>