Mailing List picongpu-users@hzdr.de Message #16
From: Marco Garten <m.garten@hzdr.de>
Subject: Re: [PIConGPU-Users] [PIConGPU-Users] Version 0.1.0 Released
Date: Fri, 22 May 2015 17:33:33 +0200
To: <picongpu-users@hzdr.de>
Hey,

To be precise:

If you want to use ionization right now you have to define a list of
ionization thresholds in ionizationEnergies.param.
You could use potential energies but then have to rewrite the
AlgorithmBSI accordingly to convert E- and B-field into the transmitted
energy. Or you simply use an E-field threshold the way it is now.

PMACC_CONST_VECTOR(float_X,<NUMBER_OF_PROTONS>,IONIZATION_EFIELD,
          <value_1>,
          ...
          <value_Z>
      );

Every atom / ion species that you implement would need such a threshold
list. You can specify the atomic properties for the species and set up
particles::ionization::BSI<yourElectronSpecies> as ionization model.

The model is really not physically accurate but should be sufficient for
high intensity lasers on sub-critical density targets.

Best regards,

Marco Garten

Am 22.05.2015 um 15:20 schrieb Huebl, Axel:
> Dear Mohammed,
>
> the 0.1.0 release includes the initial framework for field ionization
> methods and the implementation for a very simple BSI model.
>
> In the development branch, we are currently expanding and improving the
> models and an ADK model is right now being refactored (we plan a pull
> request in the next weeks).
>
> Nevertheless, if a very plain BSI model is sufficient, this can be used
> in the current release.
>
>
> Best regards,
> Axel
>
> On 22.05.2015 11:59, Mohammed Ahmed Fathella Nasr Shihab wrote:
>> Thanks Axel. What do you mean by "Initial field ionization support" ? Is the code now has an ionization model?
>> Best Regards
>> Mohammed
>>
>>
>> ________________________________________
>> From: picongpu-users@hzdr.de [picongpu-users@hzdr.de] on behalf of Huebl, Axel [a.huebl@hzdr.de]
>> Sent: Thursday, May 21, 2015 19:12
>> To: picongpu-users@hzdr.de
>> Subject: [PIConGPU-Users] Version 0.1.0 Released
>>
>> Dear PIConGPU-Users,
>>
>>
>> it took a while but we finally released the next stable version of
>> PIConGPU, version 0.1.0, with a large set of commits.
>>
>> We took great effort to make this a very stable release including a huge
>> bunch of bug fixes, especially for new CUDA version (6.5 and 7.0). As
>> usual, please check our change log for the full changes, enjoy the new
>> features and cross-check if you might be affected by previous bugs:
>>
>>
>> https://github.com/ComputationalRadiationPhysics/picongpu/blob/0.1.0/CHANGELOG.md
>>
>> An update to this version is encouraged if you are still working with
>> `beta-rc6`.
>>
>>
>> A short summary of the most important changes:
>>
>>   Initial field ionization support was added, including the first model
>> for BSI. The code-base was substantially hardened, fixing several minor
>> and major issues. Especially, several restart related issues, an issue
>> with 2D3V ZigZack current calculation and a memory issue with Jetson TK1
>> boards were fixed. A work-around for a critical CUDA 6.5 compiler bug
>> was applied to all affected parts of the code, CUDA 7 support was added.
>>
>>   http://dx.doi.org/10.5281/zenodo.17827
>>
>>
>> A note on versions of PIConGPU:
>>
>>   This version introduces semantic versioning to PIConGPU. Previously,
>> we planned to release a beta release shortly after our initial alpha
>> release, implicating that our last releases were labeled as
>> "release-candidates" (rc) for beta (but added way to many features). We
>> postponed the beta release and will simply tag an upcoming version
>> 0.Y.Z. as our beta release.
>>
>>
>> Thanks to all who contributed to this release!
>> We got a huge list of contributions - fantastic work from everyone!
>>
>>
>> Best regards,
>> Axel Huebl
>>
>> --
>>
>> Axel Huebl
>> Phone +49 351 260 3582
>> https://www.hzdr.de/crp
>> Computational Radiation Physics
>> Laser Particle Acceleration Division
>> Helmholtz-Zentrum Dresden - Rossendorf e.V.
>>
>> Bautzner Landstrasse 400, 01328 Dresden
>> POB 510119, D-01314 Dresden
>> Vorstand: Prof. Dr.Dr.h.c. R. Sauerbrey
>>           Prof. Dr.Dr.h.c. P. Joehnk
>> VR 1693 beim Amtsgericht Dresden
>>
>
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