Search found 15 matches

by Seb_Wilkes
05 Aug 2022, 09:54
Forum: General
Topic: Particles fly off to huge trajectories - any ideas?
Replies: 4
Views: 5536

Re: Particles fly off to huge trajectories - any ideas?

See attachments for movies and for elegant script.

The 'offending' frequencies were 143806 Hz (A) and 146006 Hz (B).
by Seb_Wilkes
05 Aug 2022, 09:49
Forum: General
Topic: Particles fly off to huge trajectories - any ideas?
Replies: 4
Views: 5536

Re: Particles fly off to huge trajectories - any ideas?

Hello everyone. Sorry Michael, I now understand that is the 'done' thing. Allow me to be more thorough. Since those simulations were performed, I have done a great deal more. That effect is still an ever present risk. In fact I created a simple 'cleaning' script that goes through my phase space and ...
by Seb_Wilkes
01 Aug 2022, 10:02
Forum: General
Topic: defining my own wiggler field
Replies: 6
Views: 4565

Re: defining my own wiggler field

Do wait on Michael to confirm or deny, but yes to my understanding the synchrotron fields must be calculated ourselves, however the effects on a travelling bunch (particles) is modelled by Elegant. I had been looking at this for myself and for a classical wiggler I think the solution is to take the ...
by Seb_Wilkes
29 Jul 2022, 12:53
Forum: General
Topic: TWPL increasing integration steps creates bizare behaviour
Replies: 1
Views: 3840

TWPL increasing integration steps creates bizare behaviour

Hello all, Has anyone else got much experience with setting the integration step number for TWPL? At first I went for adapbtable step sizes, but elegant threw a warning. After that I went to a fixed step size and it went away. However I wanted to know how many would be suitable. For one thing, beyon...
by Seb_Wilkes
08 Jun 2022, 05:13
Forum: General
Topic: Particles fly off to huge trajectories - any ideas?
Replies: 4
Views: 5536

Particles fly off to huge trajectories - any ideas?

Hello everyone, I've been running some runs where I externally drive a bunch using EVKICK. Most runs are fine, but sometimes I'll see a run where there is a really big jump in the Y-size. I presume with confidence this is numerical? (No Touschek elements etc; this is just a standard synchrotron latt...