CEA Codes forum

Dear Didier,
why is zero electric RF field on field map viewer? Data in the field files are in MV/m.

On more addition about notation on the plot: Electrique->Electric.

Dear Didier,
does any 'synoptic' button exist to plot arrangement of field maps in (x,y) plot?
It is needed in order to control location accuracy of field maps in space.

Dear Didier and Nicolas, one more question. Why in my case for the first dipole program uses B-field along cartesian z-coordinate and for the second one it uses B-field along the reference trajectory (look at attached pictures)? How does it find them and how put into structure file indication on B-f...

Dear Nicolas, thanks for the answer. Can you clarify how to use FIELD_MAP of the dipole, which is a sector bend as in this example? It is length by s-path (not z one) should be equal to R*teta=700 mm. It is needed to compare beam dynamics in meander (square wave) approximation of sector bend with th...

Dear Didier,
can you explain why z-coordinates on the following pictures are different (without and with FIELD_MAP)? vs Project files is attached.

Dear Didier, what shall i do if I use the scheme like as in the picture bellow and which was obtained by "specular reflection" of the BendT and QuadT? channel.jpg Should I export beam passed throughout the first Quad and bend with indicated SUPERPOSE_MAP_OUT parameters and then put the beam in a new...

Thanks a lot, dear Didier! I'll try to tune my project.

Dear Didier, please look at my project with field maps usage . It was obtained the next program message when I run my project. message.jpg Unfortunately it is not clear for me how describe element locations if its field maps does not overlap. What is wrong and what will be right in my case? Also I c...

Dear Didier, this is just an example of buncher part of RFQ. It is not suggested to accelerate particles in this section.
It is not clear for me from the Manual what is a problem with phase advance error message.
What about wall aperture and segmentation error?

Hello,
please help me to tune my Project (see in an attachment ) for the correct run of the calculations.
Why Phase advance error does appear?
What is the radius of the wall aperture and how small can it be?
What do system error mean?