Xgamma1 polt tip field

at 6.0 amps the pole tipe field is 0.236 T.  Pole length = 0.09 m, pole width = 0.0381 cm.  
Magnet radius is 0.01905.  
Integrated field =  (0.236*(0.09+0.01905))/0.01905 = 1.351 T.

at 2.0 amps the pole tip field is 0.080 T. Pole length = 0.09 m, pole width = 0.0381 cm.  
Magnet radius is 0.01905. 
Integrated field =  (0.080*(0.09+0.01905))/0.01905 =  0.460 T.


Polarity looking with beam direction is:




     S     N
        x
     N     S