CEA Codes forum

Dear Didier,

I am working on superposing the corrector field map with the solenoid field, where both share the same field map length. I have modeled the Y-pair of correctors, and I was wondering if I could use the same Y-corrector field map with a 90-degree rotation while superposing it as the X-corrector field map, given that both X and Y corrector pairs are identical.

For example, I used the following to overlap the solenoid field map with the Y-corrector field map:

superpose_map 0
FIELD_MAP 70 400 0 20 1 0 0 0 ycor 0
superpose_map 0
FIELD_MAP 70 400 0 20 3.7857 0 0 0 Sol 0


Now, I would like to superpose the third field map, where I want to use the Y-corrector field map with a 90-degree rotation. I assumed that in the command:

SUPERPOSE_MAP Z0 X0 Y0 θ_Z0 θ_X0 θ_Y0


If I use θ_Z0=90° (for instance):

superpose_map 0 0 0 90 0 0
FIELD_MAP 70 400 0 20 1 0 0 0 ycor 0
superpose_map 0
FIELD_MAP 70 400 0 20 3.7857 0 0 0 Sol 0

It would work as if I had rotated the field map by 90 degrees. However, this approach does not seem to be functioning as expected.

Could you kindly suggest how I can achieve this rotation?

Thank you for your time and support.

Best regards,
Abhishek