The OPAL Discussion Forum

["Adelmann Andreas (PSI)" <andreas.adelmann AT psi.ch>]

Hi Sébastien in 

https://gitlab.psi.ch/OPAL/regression-tests/tree/master/RegressionTests/AWAGun-TrackBack-1

you find the files for the TrackBack regression test. We start at 2m and track back to the gun. 

I agree we need to better document this new feature.

Hope that helps a bit!

Cheers A

On 28 Jul 2020, at 18:41, "sebastien.toussaint AT uclouvain.be" <sebastien.toussaint AT uclouvain.be> wrote:

Dear all,

Does anyone have complementary informations on how to use the TRACKBACK option
of OPAL-t (the doc is a bit short with respect to this parameter).

Typically, I am running :

RUN, METHOD = "PARALLEL-T", BEAM = Beam1, FIELDSOLVER = FS1, DISTRIBUTION =
Dist,
    MBMODE=force, PARAMB=5.0, TURNS=10, MB_BINNING=GAMMA, MB_ETA=0.01,
TRACKBACK=true;

And amoung the printed messages on the terminal, I get:

OPAL> Track start at: 18:37:31, t= 0.000 [fs]; zstart at: 0.000 [um]
OPAL> Executing ParallelTTracker, initial dt= -1.000 [ps];
OPAL> max integration steps 720000, next step= 0

Best regards,

Sébastien