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Re: [Opal] Convert external particle distribution weighted by different macro charges to OPAL


Chronological Thread  
  • From: "Adelmann Andreas (PSI)" <andreas.adelmann AT psi.ch>
  • To: Simon Friederich <sifriede AT uni-mainz.de>
  • Cc: "opal AT lists.psi.ch" <opal AT lists.psi.ch>
  • Subject: Re: [Opal] Convert external particle distribution weighted by different macro charges to OPAL
  • Date: Tue, 15 Sep 2020 18:51:23 +0000
  • Accept-language: en-US, de-CH

Dear Simon I do not know anyone who did this. One would also
need to know what the model of CST is, i.e. what is the criteria
for creating particles with different charges. 
 
Cheers A
------
Dr. sc. math. Andreas (Andy) Adelmann
Head a.i. Labor for Scientific Computing and Modelling 
Paul Scherrer Institut OHSA/ CH-5232 Villigen PSI
Phone Office: xx41 56 310 42 33 Fax: xx41 56 310 31 91
Zoom ID: 470-582-4086 Password: AdA
-------------------------------------------------------
Friday: ETH HPK G 28   +41 44 633 3076
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The more exotic, the more abstract the knowledge, 
the more profound will be its consequences.
Leon Lederman 
============================================

On 14 Sep 2020, at 10:39, Simon Friederich <sifriede AT uni-mainz.de> wrote:

Dear all,

From CST I can export a particle distribution. In contrast to OPAL (and propably most of the other available simulation codes):
CST weights the macro particles by different macro charges instead of having the same macro-charge for all particles. The number of particles is (almost) equally distributed (slightly influenced by the simulation accuracy).

I am thinking of a way to convert the CST distribution to one, that can be used in OPAL (using FROMFILE).
Has anyone faced this task before and has a method/script that (s)he might share?

[I've looked into the python script by Bettina Kuske and Dieter Faulbaum (HZB), that converts an ASTRA distribution to OPAL, but it's unfortunately not suitable as ASTRA has a const. macro-charge for all particles, right?]

Thanks again in advance.

Best regards,
Simon

P.S.: I am sorry, that I've opened a second request mail, but being able to convert CST distributions to OPAL would circumvent the DC acceleration problem (see my last listing mail) for now.

-- 
-----------------------------------
Dr. Simon Friederich
Helmholtz-Institut Mainz
Kollaboration B/ACID
Johannes Gutenberg-Universit├Ąt Mainz
Staudingerweg 18
55128 Mainz, Deutschland

Tel.: +49 (0)6131 39-23160
E-Mail: sifriede AT uni-mainz.de
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