CEA Codes forum

Hi all, I am design transfer line for ESS and decided to try combined function dipoles and for that I created a new element and per instructions in the manual. After quite some debugging I managed to get the transverse part of the code to agree pretty well with a quad (given the dipole is weak etc.)...

I thought was an issue with the version since the only way I managed to get it working was to roll back to an older one. Maybe there was some setting that got stuck or something with my computer in particular when I did the update, but since in your case it runs fine then it will be hard to tell.

I would get this plot constantly. I even erase everything and started fresh in another folder. This the MEBT+DTL envelopes.

This is exactly what I was running yesterday in the latest version that did not work. I have no idea what was the issues but I only managed to get it back on track after I uninstall and rolled back.

Hi, Yesterday I was trying to simulate the MEBT section of ESS and I noticed that the buncher cavities were completely defocusing in the longitudinal direction (I only tested envelope). If you set the RF amplitude to negative values it looked the dynamics was restored. I rolled back to version 2.23....