|Message: Am 241 spectra not as expected||Not Logged In (login)|
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I used /gps/ion 95 241 to simulate an Am 241 source. The radiation is impinging on an NaI(Tl) detector. But, the spectrum that I obtained (after taking into account the resolution of the detector, which was obtained experimentally), I got a different spectrum than what was expected. I am using RadioactiveDecay3.3 ,and when I view the file for Am 241, I cant understand it because I don't know what each column stands for.
I attach the spectrum that I got through geant simulation and experimentally:
(The first attachment is the geant simulation and the second is the experimental observation)
Attachment: http://hypernews.slac.stanford.edu/HyperNews/geant4/get/AUX/2011/07/15/00.42-14875-with-Al-StandardModel.png http://hypernews.slac.stanford.edu/HyperNews/geant4/get/AUX/2011/07/15/00.42-60565-Am241-experiment.png
I would like to know why there is such a difference in the two spectra, and what I should do to make the simulation resemble the experimental observations.
Thanks in advance, Athreya
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