Difference between revisions of "LB Feb2017 Se Investigations"

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Since the constant term is inside of the exponent, we must exponentiate the constant to get the (efficiency uncorrected) Activity at t=0.
 
Since the constant term is inside of the exponent, we must exponentiate the constant to get the (efficiency uncorrected) Activity at t=0.
  
So the uncorrected activity at t=0 is
+
So the uncorrected activity at t=0 is 379.56 +\-
  
  
 
[[PAA_Selenium]]
 
[[PAA_Selenium]]

Revision as of 17:18, 7 April 2017

Neutron knockout on Se-82

While looking to see if certain lines are indeed selenium within the spectrum, it is worth noting that there are 2 states for Se-81. There is a metastable state with a 57 minute half life and a gamma emission of 103 keV. First I will attempt to show that this metastable state can indeed be seen in the spectrum.

Below is an overlay of 5 plots with different cuts in time.

Se81 Metastable 103keV overlay.png

The half life was calculated using the program /data/IAC/Se/Feb2017Run/LB_WeightedFit.C

Se81 MetaStable HalfLife.png

Using the slope, the half life can be found to be 58.9 +/- 11 minutes

Below is a plot of the data when it is exponentiated

Se81 Meta ExpFit.png

Since the constant term is inside of the exponent, we must exponentiate the constant to get the (efficiency uncorrected) Activity at t=0.

So the uncorrected activity at t=0 is 379.56 +\-


PAA_Selenium