Elegant users forum

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

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...

Pradeep,

Please see the attached file for an example.

--Michael

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...

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

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...

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

--Michael

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

--Michael

Weijie, Thanks for posting this problem. It was interesting to analyze. (See attached for details.) I see two issues with the design. First, with only one rf cavity in the ring, the optics is badly distorted by the strong energy variation introduced by the wigglers; I addressed this by putting an rf...

Gunn, There are two ways to get this. You can supply a filename for the final output in the run_setup command. You'll find the Rij values in parameters in that output file. This is convenient if you are varying something in the system and want to see how the matrix elements change as a function of t...