|Message: Bug in S-value example||Not Logged In (login)|
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I was facing mysterious problem with s-value example. The rms value was increasing with increase in histories. After comparing the B1 example and svalue example where it computes the edeposit, rms and svalue.
It actually uses
fEdeposit /= numberOfEvent; fEdeposit2 /= numberOfEvent; G4double rms = fEdeposit2 - fEdeposit*fEdeposit; if (rms>0.) rms = std::sqrt(rms); else rms = 0.;
but I believe it should be
fEdeposit /= numberOfEvent; fEdeposit2 /= (numberOfEvent*numberOfEvent); G4double rms = fEdeposit2 - fEdeposit*fEdeposit/numberOfEvent; if (rms>0.) rms = std::sqrt(rms); else rms = 0.;
Please correct me if I am wrong. I am adding my results with this report to support my findings
Attachment: http://hypernews.slac.stanford.edu/HyperNews/geant4/get/AUX/2018/12/06/11.35-96486-500mycode.png http://hypernews.slac.stanford.edu/HyperNews/geant4/get/AUX/2018/12/06/11.35-35205-500svalue.png http://hypernews.slac.stanford.edu/HyperNews/geant4/get/AUX/2018/12/06/11.35-61639-1000mycode.png http://hypernews.slac.stanford.edu/HyperNews/geant4/get/AUX/2018/12/06/11.35-46500-1000svalue.png
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