The OPAL Discussion Forum

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

Hi Zahra you need to read-in a precomputed fieldmap

and hence can not change the geometry. You have 

to scale the field  but this affects all radii. Check http://amas.web.psi.ch/opal/Documentation/2021.1/Manual.pdf 

specifically p14 and p87.

 

Cheers A

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Dr. sc. math. Andreas (Andy) Adelmann
Head a.i. Labor for Scientific Computing and Modelling 
Paul Scherrer Institut OHSA/ CH-5232 Villigen PSI
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On 17 Dec 2021, at 05:01, zahra fathi <zahrafathi1371 AT gmail.com> wrote:

I want to set the synchronization condition for all radii.

For this purpose, it is necessary to change the design of the pole valley that the rotation frequency of the particle is almost constant in all radii.

With the outputs given by the opal code, how can I find the change in magnetic field required (ΔB) in each radius?

Thanks

On Thu, Dec 16, 2021, 14:21 Adelmann Andreas (PSI) <andreas.adelmann AT psi.ch> wrote:

Dear Zahra you would need to be a bit more specific.

Cheers A


> On 16 Dec 2021, at 11:16, Zahra <zahrafathi1371 AT gmail.com> wrote:
>
> Dear all
> I want to synchronize the structure of the 10 MeV cyclotron's magnet.
> How is this done with Opal?
> Any help is appreciated in advance.