Search found 1924 matches

by michael_borland
18 Oct 2023, 14:59
Forum: Bugs
Topic: CWIGGLER generates vertical dispersion in helical mode
Replies: 6
Views: 1075

Re: CWIGGLER generates vertical dispersion in helical mode

I'm not able to replicate these issues. Can you post some files that demonstrate the problems?

Thanks--Michael
by michael_borland
18 Oct 2023, 10:00
Forum: Ring Tracking
Topic: One-turn matrix in the presence of the RF field?
Replies: 1
Views: 608

Re: One-turn matrix in the presence of the RF field?

The recommended way to set up the single-turn matrix is using the ILMATRIX element, since it allows including details (such as chromaticity) in a fashion that is appropriate to long-term tracking. You can find a guide to doing this in the examples files, under ILMatrixFromTracking. Once you've done ...
by michael_borland
18 Oct 2023, 09:54
Forum: Ring Tracking
Topic: Ring tracking with ciwggler element
Replies: 6
Views: 963

Re: Ring tracking with ciwggler element

Weijie,

I can't comment on why AT and elegant give different results in this case, since I don't use AT. We did a comparison of AT and elegant for the APS upgrade, and the results were very similar.

https://journals.aps.org/prab/abstract/ ... .22.114601

--Michael
by michael_borland
17 Oct 2023, 17:55
Forum: General
Topic: field mapping by BMAPXY
Replies: 7
Views: 1317

Re: field mapping by BMAPXY

The CSV file is still not quite right. You have 202 distinct x values. Most are separated by 0.1 mm and have 201 occurrences. However, the value 0 appears 7 times and the value 2.22e-15 appears 201 times. You have 203 distinct y values. Most are again separated by 0.1 mm and have 201 occurrences. Ho...
by michael_borland
19 Sep 2023, 15:00
Forum: Ring Tracking
Topic: Transient beam loading with passive Harmonic cavity
Replies: 7
Views: 4760

Re: Transient beam loading with passive Harmonic cavity

Pradeep,

Please see the attached file for an example.

--Michael
by michael_borland
19 Sep 2023, 12:31
Forum: Installation
Topic: beam current ramping
Replies: 4
Views: 668

Re: beam current ramping

Chao, The recirculation element is to allow setup steps to take place prior to multi-turn tracking in a ring. The original inspiration was to allow tracking through a transport line and injection elements, followed by multi-turn tracking. Although the feature is kept for backward compatibility, it i...
by michael_borland
14 Sep 2023, 14:54
Forum: Installation
Topic: beam current ramping
Replies: 4
Views: 668

Re: beam current ramping

Chao,

The problem is that your CHARGE element is downstream of a recirculation element (RC). So the beam only sees the CHARGE element on the first pass through the beamline. I don't think you need the recirculation element.

--Michael
by michael_borland
14 Sep 2023, 14:36
Forum: General
Topic: field mapping by BMAPXY
Replies: 7
Views: 1317

Re: field mapping by BMAPXY

The problem is that our .csv file is corrupted. For example, look at lines 90 -0.01,-0.0018,-0.954122751767E-,01 -0.528339391746,, , 20007, -0.0001,2.22E-05,0.136713633070E-,02 -0.400245530917E-,, , and 20108 #VALUE!,#VALUE!,-0.528596975,0.388798795444E-,, and many others like them. Unfortunately, t...
by michael_borland
13 Sep 2023, 17:12
Forum: Bugs
Topic: Version 2023.3 released
Replies: 0
Views: 1532

Version 2023.3 released

Version 2023.3 has been released, including bug fixes, feature improvements, and significant performance improvements. Details are in the manual.

--Michael
by michael_borland
13 Sep 2023, 17:11
Forum: General
Topic: Version 2023.3 released
Replies: 0
Views: 1676

Version 2023.3 released

Version 2023.3 has been released, including bug fixes, feature improvements, and significant performance improvements. Details are in the manual.

--Michael