Post by mbowry on Oct 2, 2015 14:32:13 GMT -8
Dear all
I have been working on a script to look at the scaler data from SCEPTAR for each of the precision scalers (0-3) for the current experiment (S1518).
I attach the script and the output plots where "..scalers_fit_S1518" shows the decay curve fits for each scaler and "result" shows the extracted half-lives plotted for each scaler value with errors.
The DecayScaler script uses the TScaler->Draw function added by Vinzenz.
Some obvious improvements to the script would include:
1) sorting some more fragments (I have only sorted one sub-run so far)
2) including explicitly the different components of the decay curve (granddaughters, contaminant ions etc.)
a) this would be well informed by the peaks observed in the gamma-ray sum spectrum
b) we could look at the scaler data in coincidence with particular gamma-rays in the decay chain of 62Ga
3) including a legend and the different components of the fit (these are in the code but do not work with THStack - I will look into this)
4) compiling DecayScaler as a .cxx, rather than a .C file
So far the measured half-lives do not vary so greatly between each scaler, though the average value is a little below 116 ms (but still within the uncertainty).
Cheers
Mike
I have been working on a script to look at the scaler data from SCEPTAR for each of the precision scalers (0-3) for the current experiment (S1518).
I attach the script and the output plots where "..scalers_fit_S1518" shows the decay curve fits for each scaler and "result" shows the extracted half-lives plotted for each scaler value with errors.
The DecayScaler script uses the TScaler->Draw function added by Vinzenz.
Some obvious improvements to the script would include:
1) sorting some more fragments (I have only sorted one sub-run so far)
2) including explicitly the different components of the decay curve (granddaughters, contaminant ions etc.)
a) this would be well informed by the peaks observed in the gamma-ray sum spectrum
b) we could look at the scaler data in coincidence with particular gamma-rays in the decay chain of 62Ga
3) including a legend and the different components of the fit (these are in the code but do not work with THStack - I will look into this)
4) compiling DecayScaler as a .cxx, rather than a .C file
So far the measured half-lives do not vary so greatly between each scaler, though the average value is a little below 116 ms (but still within the uncertainty).
Cheers
Mike
