Post by andrewmaclean on Sept 3, 2015 6:01:26 GMT -8
Hey all,
Here are some plots of angular correlations for cobalt-60 I did awhile ago. These were done with run 4249.
Sorry for not labelling the axes but for all three of these plots the x-axis is cosθ and the y-axis is essentially counts. The first plot is with all 51 open angles of GRIFFIN (excludes the sum peak). This plot was made by gating on the 1332 keV gamma-ray and fitting the 1172 keV gamma-ray. The second plot is the isotropic distribution using gamma-rays from different events and finally the third plot is the grouped and folded angular correlation after applying the isotropic correction. The fits to the correlated plots are the Geant4 templates for the 4->2->0 cascade, the reduced chi squared is given for the grouped and folded case. All of these plots used single crystal method as it is easy for the fitting in this case with the 1172 keV sitting above the Compton edge of the 1332 keV and away from basically any other difficulties.
Here are some plots of angular correlations for cobalt-60 I did awhile ago. These were done with run 4249.
Sorry for not labelling the axes but for all three of these plots the x-axis is cosθ and the y-axis is essentially counts. The first plot is with all 51 open angles of GRIFFIN (excludes the sum peak). This plot was made by gating on the 1332 keV gamma-ray and fitting the 1172 keV gamma-ray. The second plot is the isotropic distribution using gamma-rays from different events and finally the third plot is the grouped and folded angular correlation after applying the isotropic correction. The fits to the correlated plots are the Geant4 templates for the 4->2->0 cascade, the reduced chi squared is given for the grouped and folded case. All of these plots used single crystal method as it is easy for the fitting in this case with the 1172 keV sitting above the Compton edge of the 1332 keV and away from basically any other difficulties.