Elegant users forum

Dear Michael,

Here is my lattice with the affect of fringe field.
I do appreciate if you can take a look to my files.

Best regards,
Samira

Dear Michael,

I checked with accelerator toolbox and chromaticity must be +6 and+7. but as you mentioned chromaticity values given by elegant is -4.6.
Do you know the reason?

Many thanks for your answer,
Samira

Dear Michael,

Concerning my previous post, first I wanted to be sure that I didn't have a mistake.
Then If my run was correct , what can I do to increase dynamic aperture?

Many thanks and best regards,
Samira

Dear soliday, I did copy and paste in computeBeats file, then I run it. I get this message: no such variable (read trace on "env(HOST_ARCH)") invoked from within "linsert $auto_path 0 /usr/local/oag/apps/lib/$env(HOST_ARCH)" invoked from within "set auto_path [linsert $auto_path 0 /usr/local/oag/app...

Dear Michael, Concerning my question about beta beat computing, still I couldn't get any result. May I ask you kindly to give me some hint? I run ./computeBeats -reference perfectLattice.twi -input perturbedLattice.twi but I get this message: can't read "0": no such variable while executing "exec oa...

Dear Michael, I inserted a wiggler in my ring and after optimization the beam optics, I checked dynamic aperture. Dynamic aperture before insertion a wiggler was 0.2 horizontally and 0.04 vertically while it was decreased to 0.04 horizontally and 0.008 vertically. Do you think if I had a mistake to ...

Dear,

I run "file computeBeats" and I grt :computeBeats: POSIX shell script, ASCII text executable.

Then I run oagtclsh computeBeats and I get:
can't read "0": no such variable
while executing
"exec oagtclsh "$0" "$@""
(file "computeBeats" line 4)

Cheers,
Samira

Dear Michael, Many thanks for your kind reply. I insert two wiggler in my lattice and I tried to do optimization. But still I have beta beating. Could you please to take a look to my files? FYI:First I run nominal.ele and I get twiss parameters. Then I run optimize.ele and I get optimize.new. Finall...

Dear Michael,

I run this script but I got this message:

can't read "0": no such variable
while executing
"exec oagtclsh "$0" "$@""
(file "./computeBeats" line 4)

Cheers,
Samira

Dear Michael,

Yes, I am using Linux. I set the path correctly but it isn't working.
In your reply on 12 Aug 2021,you mentioned "the attached file" but there isn't any file. Did you attach any file?

Many thanks for you reply,
Samira