The OPAL Discussion Forum

[Chris Hall <chall AT radiasoft.net>]

Thanks for letting me know, Christof!

We'll be moving over to 2021.1 soon I think. In the meantime it's obviously an easy fix in post-processing if this is just a bug in the monitor output.

Chris

On Tue, Oct 12, 2021 at 11:18 PM Christof Metzger-Kraus <christof.j.kraus AT gmail.com> wrote:

Hi Chris,

I think that this is fixed in Opal 2021.1 but it was reported that a shift is observed also in longitudinal direction. I’ll (try to) fix this as soon as possible. I’ll then have a look at the transverse positions as well.

Christof

Chris Hall <chall AT radiasoft.net> schrieb am Mi. 13. Okt. 2021 um 06:20:

Hi,

In an injector simulation in OPAL-T 2.4, with no bending magnets, I'm seeing a discrepancy I don't understand between the transverse distribution output from a Monitor element and the phase space dump near the same position.

The monitor output is clearly shifted almost exactly 5 mm in x (the same is true in y) compared to the PS dump which is centered nearly around 0.

Is there some shifting that can occur due to measurement against the reference particle in this case, or is there perhaps something else going on?

--

Chris hall

Research Scientist | RadiaSoft

720-502-3928 x709 | chall AT radiasoft.net

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