CEA Codes forum

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Dear author : I intended to use the tracewin software to reproduce the results of the old beam dynamics software transport, but the two results were completely mismatched, especially the twiss parameters at the bend were completely incorrect. Since the initial definition of the transport software fi...

Can the horizontal dispersion and the derivative of dispersion be defined by adding corresponding values to the thin_matrix, such as defining values at T15 and T25?

Is there a way to adjust the parameters of a dipole/bend magnet to match the twiss parameter value I want (without changing the length of my dipole/bend magnet)?

Why is there a loss of particles when only the length of a drift segment is missing in the middle? Moreover, it can't be seen from the figure that the main particle beam cluster is lost, and the radius of my drift segment is large enough. Why is there still a small amount of particle loss?

Dear writer,

I still don't know how to upgrade my version but when i use other's examples , it dosn't appear this problem i don't know why?

regards
hanxj

how to solve this problem

Dear author, I have a question, which is what algorithm is used to generate the data behind a multipole field map? Or what is the algorithm of the field map generated by the data? Thank you. I really don't understand the instructions. regards, hanxj

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Dear Abhishek, Thanks for your reply,I tried to ninvert the sign of the field before, but I could only change the symmetry of the magnetic field in the Y-axis direction, and could not change the magnetic field direction in the X-axis direction in the case. A data case of multipole iron derivation is...