CEA Codes forum

Dear Didier,

An error occurs while I'm using a field map in my lattice:
Attached the lattice file.

Kinds,
shliu

I see. Thank you!

Dear Didier,

I mean commands "set_size" and "set_size_max" are ignored in partran matching mode, and only "set_twiss" is considered.

Kinds,
shliu

Hi Didier, I use command "set_size_max", "set_size" and "set_twiss" in my .dat fie and performed matching with Quads in partran mode. I noticed only set_twiss is considered in TraceWin. So I'm wondering are there any command priorities in partran mathcing mode? My .dat file is like this: DRIFT... MA...

Dear didier, I want to simulate the input beam mismatching. In the error page, the mismatch factor is defined by a percentage(αx and βx are multiplied by x^n), but in fact, the twiss parameter mismatch maybe not uncertain, and each variable may increase or decrease. Can the command of ‘ERROR_BEAM_ST...

Dear CEA office,
I have upgraded my no-GUI code recently. This error still occurs. On some computers, this error also occurs for Windows TraceWin.

During the use of TraceWin(no-GUI), the error in the picture occurs. In Windows, the files can be executed.

Hi Didier,

What if the element is a dipole? Especially in field map format.

Kinds,
shliu

Dear Didier, For the command of 'ERROR_CAV_NCPL_STAT N r(0 /±1/2/±3/4/5), dx(mm), dy(mm), φx(°), φy(°), E(%), φ(°), dz(mm), Nb', the longitudinal shift dz exits, but in the 'errors setup ', the 'Z displacement' can not be selected. In the simulation results, the influence of dz is not included ? Bes...

Dear Didier,

I received a "segmentation violation" error while performing error studies on a server. Do you encounter the same situation? And what's the problem.

I attach the screenshot.

Kinds,
shliu