[g2p_ana] G2P septum I vs P curve, add to the regulation
Jixie Zhang
jixie at jlab.org
Fri Apr 13 15:07:03 EDT 2012
Hi, Javier,
Here is the fitted "I vs P" curve of the g2p septa.
(I is in A and P is the momentum in GeV/c)
//Left
p0 = -3.0791 +/- 0.0823298
p1 = 320.527 +/- 0.386868
p2 = 4.27697 +/- 0.532017
p3 = -10.9291 +/- 0.269228
p4 = 4.27932 +/- 0.0448879
I(P)=p0 + p1*P+p2*P^2+p3*P^3+p4*P^4;
//Right (40-00-16)
scale = 1.002278
p0 = -0.212553 +/- 1.38781
p1 = 422.882 +/- 6.3143
p2 = -21.154 +/- 7.2188
p3 = 10.188 +/- 2.13991
I(P)=scale * (p0 + p1*P+p2*P^2+p3*P^3);
Please put these 2 curves into the control and turn on the regulation.
We also want to have the ability to disable the regulation and change
current manually.
--
Best Regards,
Jixie Zhang
Jefferson Lab - Hall A - A112,
757-269-5352
_______________________________________________
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