Backtracking error
Posted: Fri 6 Mar 2026 14:17
Dear Didier,
I have a project that consist of :
SPACE_CHARGE_COMP 0.9
SOL1 : FIELD_MAP 50 600 0 50 0.736784 0 0 1 MedSolb
DRIFT 382.4 50 0
DRIFT 200 50 0
END
I send an initial distribution and save the final distribution after the last drift. The transmission is 94%.
Then I choose this saved distribution as initial distribution and check the back simulation option. After this, all particles are lost in the field map, I don't understand how this is possible. I tried the back simulation with another distribution, same happened.
Transmission goes from 100% to 0% in one go.
Thanks for the help.
Sophie
I have a project that consist of :
SPACE_CHARGE_COMP 0.9
SOL1 : FIELD_MAP 50 600 0 50 0.736784 0 0 1 MedSolb
DRIFT 382.4 50 0
DRIFT 200 50 0
END
I send an initial distribution and save the final distribution after the last drift. The transmission is 94%.
- enveloppe.png (161.35 KiB) Viewed 37 times
- enveloppe_error.png (170.31 KiB) Viewed 37 times
Thanks for the help.
Sophie