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2.GQ Geiger Muller Counter
GMC-300E : Can I get cumulative dose ?
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[quote][i]Originally posted by myf[/i] [br]Hello, I have a GMC-300E and I try to get the cumulative dose in Sv from total count, not the average dose per hour from CPM. It seems that : 0.5 * 10**-6 * CMP = Sv/h So I expect that : is it right ? 0.5 * 10**-6 / 60 * TotalCount = Sv An other question : how does the inner CPM counter compute ? Is there a small array with 60 index for each second per minute, and CPM value is : NowTotalCount - PreviousTotalCount60SecondsAgo. Many thanks ! F. happy with this little Geiger-Muller counter. [/quote]
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T O P I C R E V I E W
myf
Posted - 10/06/2013 : 08:23:02
Hello,
I have a GMC-300E and I try to get the cumulative dose in Sv from total count, not the average dose per hour from CPM.
It seems that :
0.5 * 10**-6 * CMP = Sv/h
So I expect that : is it right ?
0.5 * 10**-6 / 60 * TotalCount = Sv
An other question : how does the inner CPM counter compute ?
Is there a small array with 60 index for each second per minute, and CPM value is : NowTotalCount - PreviousTotalCount60SecondsAgo.
Many thanks !
F. happy with this little Geiger-Muller counter.
1 L A T E S T R E P L I E S (Newest First)
myf
Posted - 10/06/2013 : 11:57:58
And I forget to divide by 100 :
The coefficient must go from 20CPM to 0.10microSv/h
not to a hight 10microSv/h.
So I replace 10**-6 by 10**-8 in the previous formula...
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