[Halld-tagger] Analysis of Configurations 6 and 3

[Timothy Whitlatch]

Hi Dan,

I have the survey group looking through their fiducialization data closely again.

Tim

Sent from my iPhone

> On Feb 6, 2014, at 7:26 PM, Daniel Sober <sober at cua.edu> wrote:
> 
> I have added some new plots for Configuration 6 (the entry beam pipe) and Configuration 3 to the web page
> http://faculty.cua.edu/sober/halld/mapping/
> 
> The Config. 3 plots vs X look a little choppy, but I have not yet applied the probe calibrations (which are all in the right directions).
> 
> The data points in the entry region align pretty well with the nominal beam line (a few mm, 7 mr), but there is a disturbing longitudinal offset of about 4 mm with respect to the Tosca field (although the field shapes agree very well.)  How convinced are you about the reliability of the surveys? 
> 
> Dan
> 
> 
> -- 
> Daniel Sober
> Professor
> Physics Department
> The Catholic University of America
> Washington, DC 20064
> Phone: (202) 319-5856, -5315
> E-mail: sober at cua.edu
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