The OPAL Discussion Forum

[Andreas Adelmann <andreas.adelmann AT psi.ch>]

Hello Karie for the multipacting simulations we are using 3D field maps.
For a Cyclotron simulations with the primary beam we are using mid-plane 
field maps.
Even if you have arguments why using 3D field maps I would strongly suggest 
to 
start simple and more important, if space charge is the primary concern then 
the 
mid-plane field map is a good start.

Have a look at the  manual in Chapter 4.2.2. 

If you have established this field map, check the tunes. This is outlined in 
4.2.6.

After that you are ready to do accelerated equilibrium orbits and need the 
description
of the rf-cavities i.e. a voltage profile as function of the radius together 
dV/dr. 
Check out 7.15.3 and p 67.

Hope that helps to get started.

Andreas 


On Aug 24, 2011, at 9:50 PM, Karie Badgley wrote:

> Hello,
> 
> I have a computer model of our cyclotron which will give a 3D magnetic
> field map. I am wondering how I can implement this in OPAL-CYCL. The
> format for the field file shown in the manual is for 2D and I am
> wondering how to format the 3D file.
> 
> Karie Badgley
> 
> -- 
> Texas A&M University
> Dept. of Physics
> KarieBadgley AT neo.tamu.edu
> _______________________________________________
> Opal mailing list
> Opal AT lists.psi.ch
> https://lists.web.psi.ch/mailman/listinfo/opal

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Dr. sc. math. Andreas (Andy) Adelmann
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