[b1_ana] Fwd: Independent Technical Advisory Report

[Dustin Keller]

Yes I would like to reach a consensus on the best that we can do
via ~sqrt(N).  ei. what is the final word on number of cycles
per point.  Anneal are likely not necessary at the 6 hour point
but we do loose time by having to repolarize twice as much.

dustin

On Thu, 30 May 2013, O. A. Rondon wrote:

> Hi Karl,
>
> I posted a draft of my comments about the pf and target length. All are
> welcome to read/comment, etc.
>
> The LaTex and pdf files are here (name tac-itac*)
> http://twist.phys.virginia.edu/~or/b1/?C=M;O=D
>
> It bears repeating that the uncertainties in Azz due to time dependent
> systematics are per cycle period. They will be further reduced in the
> error of the mean Azz for each x point  by the square root of the ~ 10
> cycles per point. Otherwise, nothing would be gained by repeated
> measurements. At least that is what I understand from Bevington's text
> on errors.
>
> So the error bands based on dA_zz(xi) = 3.7E-3 are actually too
> pessimistic. A realistic error would be 1/2 to 1/3 of that for the
> combined data per x point, considering that the 3.7 factor might be a
> bit bigger.
>
> Cheers,
>
> Oscar
>
> Karl Slifer wrote:
>> A more pessimistic read by the iTAC.
>>
>> -Karl
>>
>>
>>
>>
>> ---------- Forwarded message ----------
>> From: Susan Brown <sbrown at jlab.org>
>> Date: Thu, May 30, 2013 at 12:23 PM
>> Subject: Independent Technical Advisory Report
>> To: Karl Slifer <karl.slifer at unh.edu>
>>
>>
>> Dear Dr. Slifer,
>>
>> Attached please find a copy of the Independent Technical Advisory report
>> for your PAC submission.
>>
>> Cheers,
>>
>> Susan
>>
>>
>>
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