[Frost] About the degree of the electron-beam polarization

[Sungkyun Park]

Hi Steffen,

To know the degree of the photon-beam polarization , we need to have the electron-beam polarization.
What do I use values? Until now, I used 0.85 as the electron-beam polarization.

In the frost webpage :
   http://clasweb.jlab.org/rungroups/g9/wiki/index.php/Beam_Polarization_%28Circ.%29

they had the different values in each run-range.

1. Can I use the following numbers as the electron-beam polarization?
   
     Run Range    	Polarization
     55521 - 55587 	-83.4155%
     55588 - 55595 	-87.5643%
     55604 - 55627 	82.534%
     56164 - 56203 	83.267%
     56204 - 56233 	83.248% 

2. if so, they do not have the errors. what are their errors? 
3. In the table, there is no polarization between run 55630 and 55678. where is it?

Can I know what electron-beam polarization you use now?

Best Wishes

Sung
Florida State University