[d2n-analysis-talk] Run Sheets

[David Flay]

Hey Brad,

I've spent most of the day writing a script that can check our current
optics matrix, and I'm getting to the point of making some plots.

However, despite compiling a list of optics runs (I determined this list
from the Halog):

https://hallaweb.jlab.org/wiki/index.php/List_of_special_runs_(d2n)

(see LHRS Optics Calibration section),

I am not sure of whether or not we have runs utilizing the Optics target
(with the 7 Carbon foils; 1 is out of the acceptance range, I believe), as
I don't necessarily trust what we see in this table... this table suggests
that we did not take runs on the multi Carbon-foil target -- is this true?

I planned on using these runs to examine a number of things, which are the
characteristic plots for the check on the optics:

z-react
x_sieve vs. y_sieve
theta_target vs. phi_target (for each foil)
y_target vs. phi_target (for each foil)
dp_kin (for each foil)
and the Carbon excited states (for each foil)

where dp_kin is a correction to the elastic scattered energy of the
electron, since elastic peak will be broadened due to the angular
acceptance of the spectrometer.

I do have Transversity's data for their optics optimization (and their
matrix coefficients), and I was initially intending on doing a replay of
<our> optics data and seeing where our current matrix stands, and then
implementing Transversity's matrix coefficients and see how things
change...

My main question then, is do you know where those run sheets went?  I'd
like to make a copy (maybe we can scan them into the computer, and post
them to the wiki?) and bring them back with me to Temple (Matt and I are
coming down to JLab May 1st).

Thanks for any help,

Dave

P.S. -- Lamiaa relayed a message from Yi that the Multi Carbon Foil target
had spacings of 40cm/6 = 6.667cm.

-------------------------------------------------
David Flay
Physics Department
Temple University
Philadelphia, PA 19122

office: Barton Hall, BA319
phone: (215) 204-1331

e-mail: flay at jlab.org
            flay at temple.edu

website: http://www.jlab.org/~flay
              http://quarks.temple.edu
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