[b1_ana] Fwd: PR12-13-011

[Elena Long]

Good afternoon,

With Pb=0, we'd be left with just the 1/2*Pzz*Azz and Pz*A_V^d terms, 
correct? I'll update the end of the tech note to include the Pb=0 terms.

By the way, if anyone needs access to the *.tex it's available in the 
same folder as the tech note, just delete the "pdf" in the URL and 
replace it with "tex"

Take care,
Ellie

Elena Long, Ph.D.
Post Doctoral Research Associate
University of New Hampshire
elena.long at unh.edu
ellie at jlab.org
http://nuclear.unh.edu/~elong
(603) 862-1962

On Fri 24 May 2013 03:07:34 PM EDT, O. A. Rondon wrote:
> Hi Karl,
>
> Thank you for forwarding the info. That is what I asked about the laser
> light. I think we should ask for it.
>
> One thing I would suggest we could do at the presentation is to show a
> slide with all the asymmetries that Ellie has collected, and then follow
> it with the same slide, but with P_b = 0, to show the enormous
> simplification. It could be compelling, especially since we only want <
> 200 nA.
>
> Cheers,
>
> Oscar
>
> Karl Slifer wrote:
>> ---------- Forwarded message ----------
>> From: *Jay Benesch*
>> Date: Friday, May 24, 2013
>> Subject: PR12-13-011
>> To: Karl Slifer <karl.slifer at unh.edu>
>> Cc: marcy at jlab.org, hansknec at jlab.org
>>
>>
>> Karl,
>>
>> I was wrong.  I just spoke with Marcy.  Linearly polarized red light on the
>> existing cathode would give you unpolarized electrons.  All one would have
>> to do is remove the unit that turns linear to circular polarization.
>>   Unfortunately, this is done on all three laser beams with the same unit so
>> all halls would have to agree.  I couldn't reach John Hansknecht to learn
>> whether there's enough room to rebuild the laser table to allow the hall C
>> beam to bypass the unit while getting to the cathode at the right time.  I
>> doubt it, but John does extraordinary things.
>>
>> The gun group is also working with another cathode with high QE in green
>> light and no polarization but there is some valid reluctance to put it in
>> the CEBAF production injector due to "volatility" (my word - the stuff can
>> move within the chamber if too much light gets to it).  It needs to stay in
>> vacuum so it can't be installed in the old gun.
>>
>> Jay
>>
>>
>>
>>
>>
>> ------------------------------------------------------------------------
>>
>> _______________________________________________
>> b1_ana mailing list
>> b1_ana at jlab.org
>> https://mailman.jlab.org/mailman/listinfo/b1_ana
>
>
> _______________________________________________
> b1_ana mailing list
> b1_ana at jlab.org
> https://mailman.jlab.org/mailman/listinfo/b1_ana