ACTARSIM, a simulation package developed to determine the response of the ACTAR-TPC Active Target and other similar Active Target projects, as well as their ancillary detectors.
[NOTE: this is a copy of the original issue from Piotr, sent 14/10/14 and lost when moving the group]
Aim : check if AcarSim Energy loss and straggling correspond to LISE++ and SRIM calculations
Here is the Energy loss study for C12 across 300mm of absorber composed of Deuterium gas (1atm, 0.167 mg/cm3) for different incident energies.
The ion energy distribution at the end of the absorber. At 40MeV we observed a non-gaussian distribution. In fact we are closed to a 300mm range so maybe it explain this strange shape. I use the RMS as energy straggling :
For the angle straggling, I used the positions at the step's edges and put into vectors. Here is the distribution of the angle between the last angle and the beam axis. I used the mean value as the angular straggling :
Here is the summary of energy loss, energy and angular straggling versus different LISE++ methods of calculation. We can see that for the straggling there are huge difference between the different methods used :
[NOTE: this is a copy of the original issue from Piotr, sent 14/10/14 and lost when moving the group]
Aim : check if AcarSim Energy loss and straggling correspond to LISE++ and SRIM calculations
Here is the Energy loss study for C12 across 300mm of absorber composed of Deuterium gas (1atm, 0.167 mg/cm3) for different incident energies.
The ion energy distribution at the end of the absorber. At 40MeV we observed a non-gaussian distribution. In fact we are closed to a 300mm range so maybe it explain this strange shape. I use the RMS as energy straggling :
For the angle straggling, I used the positions at the step's edges and put into vectors. Here is the distribution of the angle between the last angle and the beam axis. I used the mean value as the angular straggling :
Here is the summary of energy loss, energy and angular straggling versus different LISE++ methods of calculation. We can see that for the straggling there are huge difference between the different methods used :