Search found 42 matches

by simona.bettoni
28 Oct 2022, 03:06
Forum: General
Topic: TRWAKE on the beam
Replies: 2
Views: 64

Re: TRWAKE on the beam

Michael,
all clear. Many thanks for your explanation.

I meant that the offset of the beam (with respect to the RF cavity) is used to compute the kick that (at this point) each slice gets. I badly expressed myself.

Thanks also for the very prompt reply, and have a nice day.
by simona.bettoni
26 Oct 2022, 06:19
Forum: General
Topic: TRWAKE on the beam
Replies: 2
Views: 64

TRWAKE on the beam

Dear all, I have a general question concerning the computation of the effect of the wakefield on the beam. I am presently running some simulations misaligning elements along a linac. I am comparing the results with another code, which is giving more pessimistic results. A possibility pointed out by ...
by simona.bettoni
19 Jul 2022, 06:47
Forum: Dynamic Aperture
Topic: km2sdds
Replies: 2
Views: 3668

Re: km2sdds

Thanks a lot for your reply!
Kind regards,
Simona.
by simona.bettoni
24 May 2022, 08:20
Forum: Dynamic Aperture
Topic: dynamic aperture after insert a wiggler
Replies: 7
Views: 4102

Re: dynamic aperture after insert a wiggler

Dear Samira, I am not really an expert in the topic, but when I tried to do the same with a collegue using another code (only now I am trying with Elegant), we noticed that the quadrupole induced by the wiggler modified the optics, and the DA was strongly reduced. We rematched using the quadrupoles ...
by simona.bettoni
24 May 2022, 08:11
Forum: Dynamic Aperture
Topic: km2sdds
Replies: 2
Views: 3668

km2sdds

Dear all, I am trying to use the function km2dds to compute the kick map from an undulator for the element UKICKMAP. If I want to build the kick map by myself it is clear that I have to generate a file which has (x,y,kickX,kickY) columns, because kickX and kickY will be two scalars for each couple (...
by simona.bettoni
24 May 2022, 07:14
Forum: Linac Tracking
Topic: Extraction data multi-bunch
Replies: 2
Views: 2964

Re: Extraction data multi-bunch

Dear Michael,
many thanks for your reply.
Kind regards,
Simona.
by simona.bettoni
05 Apr 2022, 08:42
Forum: Linac Tracking
Topic: Extraction data multi-bunch
Replies: 2
Views: 2964

Extraction data multi-bunch

Dear moderators, I am trying to simulate a multi-bunch. I used this: &sdds_beam input = "distr_matched_ok.sdds", input_type = "elegant", center_arrival_time = 1, sample_interval = 5, reuse_bunch = 0, fiducialization_bunch = 0, !I phase with respect to the first bunch n_duplicates = 1, ! I duplicate ...
by simona.bettoni
23 Mar 2022, 04:03
Forum: General
Topic: Generation of the bunch
Replies: 4
Views: 3201

Re: Generation of the bunch

Many thanks for your reply!
Have a nice day,
Simona.
by simona.bettoni
17 Mar 2022, 10:38
Forum: General
Topic: Generation of the bunch
Replies: 4
Views: 3201

Re: Generation of the bunch

Dear Michael, I changed the distribution I applied the matchtwiss, and I repeated the full chain. Now I used the command: sddsmatchtwiss Linac1.out distr_matched.sdds -xPlane=beta=2.398316e+00,alpha=5.018045512606445e-01 -yPlane=beta=1.230487e+01,alpha=-2.328639e+00 When I analize the obtained beam:...
by simona.bettoni
10 Mar 2022, 08:36
Forum: General
Topic: Generation of the bunch
Replies: 4
Views: 3201

Generation of the bunch

Dear all, I did some tracking simulations along a linac using bunched_beam. My line is a FODO with some RF cavities, so I computed the optics to have periodic beta and alfa, and all was working. Now I would like to simulate the same line, but using sdds_beam, because I can have a better representati...