Apologies for the delay in getting back to you.
I just tried to load the weight1.lis you sent by e-mail but it’s not compatible with the latest set of ANSYS field map files (ELIST.lis, NLIST.lis, PRNSOL.lis, etc.) I have from you.
Can you try to do a bit of debugging to identify the cause of the problem:
- Make a plot of the weighting potential. Does it look like you expect it to?
- Simulate a few electron and/or ion drift lines along a track. Do either the electrons or the ions go to the readout electrode?
Also as I tried to suggest in this thread, if the signal you measure is proportional to the collected charge, you could simplify the calculation by simply counting the number of electrons/ions arriving at each electrode.