Search found 54 matches

by marlibgin
01 Jun 2015, 10:58
Forum: Optimization and Matching
Topic: error on optimization
Replies: 7
Views: 5255

Re: error on optimization

Thanks very much for the prompt reply! Indeed this sorted out the problem Continuing on the same line I have another question then. I want to optimize now against the ratio e2/e1 from the calculation of beam_moments, so I introduce a block like: &moments_output filename = %s.mom, matched = 1, equili...
by marlibgin
01 Jun 2015, 05:25
Forum: Optimization and Matching
Topic: error on optimization
Replies: 7
Views: 5255

error on optimization

Hi all, I am probably doing something silly but I can't find a solution to this. I have initially found a similar post by user Marcello named, "Strange Dispersion Calculation" where the problem was the inability at writing a final output file after the optimization. This is well explained in the rep...
by marlibgin
24 Mar 2014, 09:04
Forum: Momentum Aperture
Topic: touschek_scatter
Replies: 17
Views: 27141

Re: touschek_scatter

Hi all, the touschek_scatter output shows the number of particles lost per second per meter. In other words the ring is binned in 1m sections and for every bin the number of losses is shown. Would it be possible to have the number of losses at the point where they occur? E.g. I'd like to see the num...
by marlibgin
14 Mar 2014, 04:21
Forum: General
Topic: How to add a error to bumper's waveform?
Replies: 3
Views: 2257

Re: How to add a error to bumper's waveform?

Dear all I step in this conversation with a request, rather than an answer. Would it be possible to have a working example of a bumper inserted in a ring with its waveform file? I am trying to reproduce the effect of 4 kickers at injection and I am not sure how to do it. Thanks for any help Marco
by marlibgin
10 Mar 2014, 18:15
Forum: Momentum Aperture
Topic: touschek_scatter
Replies: 17
Views: 27141

Re: touschek_scatter

Thanks a lot Aimin to look carefully at this problem, it seems to work now, I am trying to familiarize with the ouput at the moment. I understand several .out files are generated each one corrresponding to the TSCATTER element where touschek scattering process has been generated. The sFrequency corr...
by marlibgin
10 Mar 2014, 06:43
Forum: Momentum Aperture
Topic: touschek_scatter
Replies: 17
Views: 27141

Re: touschek_scatter

Dear Aimin
I re-iterate the final question of my previous post:
Would it be possible to see how you generate the momentum_aperture.mmap file related to the touschek_scatter example?

Thanks a lot in advance
Marco
by marlibgin
07 Mar 2014, 19:53
Forum: Momentum Aperture
Topic: touschek_scatter
Replies: 17
Views: 27141

Re: touschek_scatter

Aimin thanks for your answer, I have tried the way you suggest, i.e. by putting a &insert_elements after &run_setup but I still elegant complains with a error: Momentum aperture file ends earlier than required frustrating to say the least ... I attach the latest version of my files, touscat_A.ele pr...
by marlibgin
07 Mar 2014, 07:14
Forum: Momentum Aperture
Topic: touschek_scatter
Replies: 17
Views: 27141

Re: touschek_scatter

Dear Aimin, thanks very much for your reply, your example worked on my machine and gave me a good flavour on what I expect to obtain, however I am still struggling a bit with my case. Namely, when I try to produce an .mmap file and THEN a tosuchek_scattering output file I get this error: Momentum ap...
by marlibgin
06 Mar 2014, 11:36
Forum: Momentum Aperture
Topic: touschek_scatter
Replies: 17
Views: 27141

Re: touschek_scatter

Dear All is there a working example on touschek_scatter? how/where to place t he TSCATTER element?, I have been trying to follow the given instructions but can't make it work at all. I am surely doing something silly and an example would probably help a lot. Thanks in advance and kind regards Marco
by marlibgin
16 Jan 2014, 04:41
Forum: General
Topic: combining files with SDDS
Replies: 1
Views: 1139

combining files with SDDS

Hi all surely the way I deal with sdds is not particularly advanced and this is a trivial problem for many of you. I have two files: 1) VMX-twi.twi contains the Twiss parameters, in particular columns with s, betax, betay ... ElementName,ElementType, ElementGroup. It does NOT have the ParameterEleme...