[E12-11-009-collab] Hall C GEn Collaboration Meeting on Tuesday, Oct 22 (tentative)

[Steven P. Wells]

Dear E12-11-009 Collaborators,

Louisiana Tech would like to contribute
in a meaningful way to this experiment.
We have a fully functional cosmic ray test
stand, and should have access to a proton
beam (~250 MeV) in the not too distant
future.

We are in the process of ordering a prototype
proton detector for the neutron polarimeter
to test properties of the detector and PMT choices.
The dimensions are clear from the proposal
(10cm X 10cm X 100cm), and have received
quotes from both Bicron (now St. Gobain), and
Eljen, and will order the scintillator material
in the very near future, and have assumed
that 2" PMT's will be employed. To this end,
I have researched some PMT's from both
Hamamatsu and Electron Tubes corporations,
and found a few suitable candidates
(Hamamtsu H-1949-51 and ET 9205B) with
fast rise times, reasonable linearity, and relatively
low dark current. I intend to get quotes from them
within the next few days. If other choices have
been made by the collaboration that we are
unaware of, I would ask that you please let us
know soon, so that we could order a detector
package that is most consistent with what
the collaboration intends to use for the
experiment.

We have a grant that expires at the end of September,
and need to encumber the funds by the end of August,
and would like to spend these funds in a useful way to
help out the experiment.

Thanks, and best regards,
Steve Wells

On 07/16/2013 10:05 AM, Brad Sawatzky wrote:
> Dear Collaborators,
>
> We would like to have a Collaboration Meeting for the Hall C 12 GeV, GEn
> experiment, E12-11-009, on Tuesday afternoon, Oct. 22 at JLab.  This is
> the day prior to the DNP meeting in Newport News, so our hope is that it
> may simplify travel arrangements.  Video/audio conferencing will be
> available for those who wish to attend without travel.
>
> Discussions topics will include experimental design, including the
> design of the neutron polarimeter, the precession/sweeping magnet
> system, and funding questions.  In particular, there will soon be a
> strong need for groups to work on construction of the polarimeter.
>
> We'll develop a more detailed agenda as we get closer.
>
> Drop me a line if you have any comments about the date or content of the
> meeting, otherwise please mark the date and watch your inbox for
> updates.
>
> All the best,
> -- Brad Sawatzky (on behalf of the Collaboration)
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