Resolve 'Delete particles that move in the opposite direction than the bunch.'

Closes #632 (closed)

added Enhancement OPAL-T labels

Initially I wanted to delete only those particles that move in the opposite direction. Then I noticed that Opal-Cycl uses 'Option::REMOTEPARTDEL' to delete those particles that are further away than x times the rms. (NB: the manual says that if the value is equal to -1 then this has no effect. However the method PartBunchBase::boundp_destroyCycl also deletes particles if the value is -1. Furthermore the default value is 0 and not -1 as stated in the manual. Finally boundp_destroyCycl converts the floating point value to an integer which doesn't seem necessary, e.g 2.5 times

$\sigma$

should work as well.).

I use this option a bit different since I only want to delete particles that are far away from the mean position in longitudinal direction. And OpalT ignores all negative values of REMOTEPARTDEL.

Only loosely related to this issue: I also remove the method setMinimumNumberOfParticlesPerCore and getMinimumNumberOfParticlesPerCore since the minimum number of particles was always 0 and this never worked properly due to scattering of the charge and gathering of the induced field.

added 1 commit

• 44c83fd6 - delete all particles that farther away than x times sigma; remove unused Inform instance

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approved this merge request

changed milestone to %OPAL 2021.1

mentioned in commit 351f323f

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