[Halld-cal] Slides to present request for parasitic running at Hall B meeting

Zisis Papandreou zisis at uregina.ca
Sat Feb 11 22:10:33 EST 2012


Hi Elton:

nice work on the slides.  A few comments.

- p4: length is 3.9m if you want to be picky

- p5: following our discussion, I thought about the stand more.  We can 
mount the pivot attachment to the centre holes, so that the Mini Cal has 
the SiPMs outside the beam and to the side.  The pivot will be used to 
orient it so that the electrons are coming in on a plane perpendicular 
to a plane bisecting the module along its principal axis.  We can then 
rotate the entire device with its stand, to achieve angles from 90-20, 
ie go from 15X0 to 44X0.  In other words, we would not need to make a 
transition piece.

-p6: at 5 pass, we have 5.542 GeV, and at the 30% E/E0 point that is 
almost 1.67 GeV.  You have 1.2 GeV.

The rest looks peachy.

Cheers and have fun in the presentation, Zisis...

> Elton Smith <mailto:elton at jlab.org>
> February 11, 2012 11:04 AM
> Dear collaborators,
>
> I have put together some slides to summarize our request for parasitic
> running in Hall B with the mini-Bcal
> http://argus.phys.uregina.ca/cgi-bin/private/DocDB/ShowDocument?docid=1901
>
> Comments are more than welcome. Considering time constraints, I will try
> to incorporate your suggestions.
>
> Cheers, Elton.
>
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