[POTKU] no observed ions in Potku simultion

Thu Nov 9 09:24:56 EET 2023

Good morning Robert, All Potku users,

All the parameters in the screenshots seems ok for the MCERD simulations, at first glimpse.

However, does the output window give many "energy would change too much in the virtual detector" -notifications?, and by a lot I mean thats only it gives? (one could try only single processor to test the re-occurrence too?)
Example text:
[cid:63f2184d-c7b8-4915-97cd-b5102059109e]

This kind of "no ions" would be the 'typical' case for hydrogen, for example, if the minimum energy is set to "1 MeV". This is because the minimum energy needs to be about half the smaller than the actual ion energy one wants to simulate/match. But, this should not be the issue now for the Aluminum. At the moment, I dont recall this issue, or the solution to this.

---
a) If you want you could possibly sent the project file to me to look it closer..or possibly faste option forward:
b) Second option could already be: the sneak peak for the next potku release which is about just to emerge.
This can be found from Github already for win, mac and linux:
https://github.com/JYU-IBA/potku/releases/tag/2.2.0

In this version, there's still few known issues (have been fixed up mostly), like
1) in some simulation related crash, the previous data cannot be opened
2) changing the fluence in simulations prompts "simulations need to be re-done"
3) few minor issues

But once those are also fixed, next week?, I will announce this more "officially".
(Note: if one opens the project with the new version, then old potku cannot anymore open the same project. (to preserve the possibility for previous version, open for example a copied project instead). The configuration files are now JSON format and introduction of the energy detector (addition to the TOF) have introduced new parameters, for example. But the new version is otherways wayy ahead of the old 2022/03/31 version, including also many speed and usability improvements to the slab analysis side).

mikko.

ps. Our university web pages have just went through large refreshment, and some "old" pages cannot be accessed at the moment, Potku page included..

--
Mikko Laitinen, PhD, Docent
Academy Research Fellow
Department of Physics, Accelerator Laboratory
________________________________________________________
Postal address: University of Jyväskylä,
Department of Physics, P.O. Box 35, FI-40014, Finland
Street address: Survontie 9 D, Ylistönrinne, Jyväskylä
Work phone: +358 40 8054 113
E-mail address: mikko.i.laitinen at jyu.fi

________________________________________
From: potku-bounces at lists.jyu.fi <potku-bounces at lists.jyu.fi> on behalf of Robert Frost <rob.frost at physics.uu.se>
Sent: Wednesday, November 8, 2023 8:56 PM
To: potku at lists.jyu.fi
Subject: [POTKU] no observed ions in Potku simultion

Hi,

I'm currently trying to make use of the simulation tool in Potku, but the number of "observed ions" simply remains zero (screenshot below and also attached).

Screenshots of all related setting are also included below (and attached).

Any idea what I am doing wrong?

Thanks,
Rob

[cid:part1.MkUxBdPx.0PguyRlK at physics.uu.se]

[cid:part2.vDtaBxso.6uatLmkj at physics.uu.se][cid:part3.3TiaTmrf.QiKjpHa8 at physics.uu.se][cid:part4.dMj3EZ45.NrrWraD4 at physics.uu.se]

--
Robert Frost MEng PhD
Researcher in the Ion-physics Group
Division of Applied Nuclear Physics
Department of Physics & Astronomy
Uppsala University
Sweden
email: rob.frost at physics.uu.se<mailto:rob.frost at physics.uu.se>
phone: +46 (0) 723411586

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