Dear @xiongbp,
Sorry for the delay in replying!
Doing that plot, you should observe the spectra at different angles, depending of the number of angular bins that you selection in you USRBDX card. I see that you used 2 in your input file. It means that you should be looking only the superposition of two graphs, then… it’s weird that you are getting three.
Anyway, I modified your input file a little bit in order to obtain a cleaner result:
LiF+ZnS.flair (4.9 KB)
Here the most important changes:
- Changed the USRBDX linE → logE
- I changed the number of cycles to 5: It’s always recommended to choose a value above 5 ( 5-10 is ok) in order to have good statistics.
- I added a few plots: For triton and 4He, the superposition of the two distributions (in different colors) obtained for the different angles, and the integrated case.
- You will see also that I selected the ‘Lethargy plot’ ( < X >*Y). Considering that we have chosen log(E) for the scoring, it’s important to use the lethargy plot in order to avoid misleading regarding to the contribution according to the energy, i.e. doing this plot you are assigning the correct importance to different energy ranges in the plot.
This thread is also related to this.
I hope it can be helpful,
Cheers
André