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- From: Van de Walle Jarno <jarno.van.de.walle AT sckcen.be>
- To: "opal AT lists.psi.ch" <opal AT lists.psi.ch>
- Subject: [Opal] beamline simulation for low energy radioactive ion beams
- Date: Tue, 5 Apr 2022 13:52:39 +0000
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Hello,
I’m new to OPAL and I’m trying to simulate a beamline for radioactive ions, which I did in MAD-X, now in OPAL. The properties of the beam are: Mass = 100 (amu) Energy = 60 keV (!) The beamline consists of 4 quad doublets and 1 dipole (112 degrees). In MAD-X this runs smoothly and I wanted to check first of all if I can get similar results with OPAL. The next step would be to include a real 3D magnetic field map for the dipole in OPAL (which is not possible in MAD-X).
The first results are not encouraging L I encounter multiple issues – which are probably related to a misinterpretation of the input file needs … E.g.: - when including the dipole, the tracking takes way too long to be realistic (so somewhere the tracking blocks) - If I exclude the dipole (like in the attached inputfile), I see that The Kinetic energy of the beam is suddenly 4.528 GeV with dE = 19.686 MeV ?! No idea why …
I’m in any case convinced that OPAL could help us further in the simulation of our Radioactive Ion Beam beamlines and in the future our 100 MeV proton accelerator. May I ask you to run the attached input file and/or hint towards my (obvious, maybe J) mistakes ?
Any help is highly appreciated ! Many thanks in advance and kind regards Jarno
Jarno Van de Walle, PhD
+32 14 33 84 16 ǀ +32 470 20 98 31 -
Belgian Nuclear Research Centre Boeretang 200 - 2400 Mol – Belgium
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Attachment:
IaM.in
Description: IaM.in
-
[Opal] beamline simulation for low energy radioactive ion beams,
Van de Walle Jarno, 04/05/2022
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Re: [Opal] beamline simulation for low energy radioactive ion beams,
Adelmann Andreas (PSI), 04/06/2022
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RE: [Opal] beamline simulation for low energy radioactive ion beams,
Van de Walle Jarno, 04/06/2022
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Re: [Opal] beamline simulation for low energy radioactive ion beams,
Chris Hall, 04/06/2022
- RE: [Opal] beamline simulation for low energy radioactive ion beams, Van de Walle Jarno, 04/07/2022
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Re: [Opal] beamline simulation for low energy radioactive ion beams,
Chris Hall, 04/06/2022
-
RE: [Opal] beamline simulation for low energy radioactive ion beams,
Van de Walle Jarno, 04/06/2022
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Re: [Opal] beamline simulation for low energy radioactive ion beams,
Adelmann Andreas (PSI), 04/06/2022
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