The OPAL Discussion Forum

[Christof Metzger-Kraus <christof.j.kraus AT gmail.com>]

Hi Dragos,

currently the length of the RF cavity in the input file is ignored, only the length in the field map file is used. And Opal-t only outputs the on-axis field for some field types (one dimensional field maps), but not in general.

I could add both ideas to the issue tracker if you'd like.

Cheers,

christof

On Thu, Dec 5, 2019 at 10:53 AM Dragos Constantin <dragos.constantin AT varian.com> wrote:

Dear Colleagues,
I have some questions regarding RFCavity and field output in OPAL-t mode.

In the manual, at page 88, it is stated that the frequency of the RFCavity
card overrides the frequency defined in the FMAPFN file header. Is this true
for the length of the RFCavity as well? I mean, if I would like to change the
length of the RFCavity, do I have to edit the FMAPFN header to adjust the grid
dimension as well?

Along these lines, how do I get the fields used by OPAL-t in its calculations?
I would like to double-check that the fields used are correct. The manual
specifies only output options for OPAL-cycl as described in Chapter 11.

Thanks,
Dragos