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Reproducing Boag and Wilson's ionisation curve 
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#1
Feb2114, 09:02 AM

P: 2

Hi, i'm trying to plot the the ionisation curve of an ionisation chamber against the theoretical curve outlined by Boag and Wilson in their paper 
http://abdivbdiblblm.web.cern.ch..._Boag_1952.pdf I can't follow their derivation for the equation all the way (I know I should, but i don't have much time) but I have tried to reproduce their theoretical curve from the parametric equation for f and xi. I create f and xi from omega, then plot f against xi. The shape of the curve looks pretty good, but it seems to be in a different place on the x axis  in the paper the mid point is somewhere around 0.1, on my graph the mid point is somewhere around 3. i can't see a reason for the difference (am i missing something? is it obvious?) attached picture is of of the curve i plotted help much appreciated P 


#2
Feb2114, 10:37 AM

P: 2

false alarm. stupid mistake



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