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Re: [Opal] Isochronous magnetic field

Chronological Thread  
  • From: "Adelmann Andreas (PSI)" <andreas.adelmann AT>
  • To: zahra fathi <zahrafathi1371 AT>
  • Cc: "opal AT" <opal AT>
  • Subject: Re: [Opal] Isochronous magnetic field
  • Date: Fri, 17 Dec 2021 07:03:18 +0000
  • Accept-language: en-US, de-CH
  • Authentication-results:; iprev=pass ( smtp.remote-ip=; spf=pass; dmarc=skipped

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 
specifically p14 and p87.
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
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Leon Lederman 

On 17 Dec 2021, at 05:01, zahra fathi <zahrafathi1371 AT> 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?


On Thu, Dec 16, 2021, 14:21 Adelmann Andreas (PSI) <andreas.adelmann AT> wrote:
Dear Zahra you would need to be a bit more specific.

Cheers A

> On 16 Dec 2021, at 11:16, Zahra <zahrafathi1371 AT> 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.

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