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Paul Scherrer Institut PSI GEM Software (GEMS) Home

Paul Scherrer Institut
5232 Villigen PSI, Schweiz/Switzerland
Tel. +41 56 310 21 11
Fax. +41 56 310 21 99



Updated:
19.04.2015
E-Mail: gems2.support@psi.ch


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GEM-Selektor v.3 on-line documentation


Attention: To read or print PDF files, you will need Adobe Reader (or any equivalent program) installed on your PC.

Some of the following files are also located in /doc/pdf subdirectory of your installed GEMS /program directory.

1. Unpublished PSI Technical Report TM-44-02-06 about the enhanced high-precision GEM IPM-2 algorithm.

Download:      TM-44-02-06 (Part 1)        TM-44-02-06 (Part 2)

2. Unpublished PSI Technical Report TM-44-03-04 about the GEMS version of Nagra/PSI chemical thermodynamic database 01/01. 

Download:   TM-44-03-04 (web version)

3. Description of built-in temperature and pressure corrections calculated in the GEMS code from data in DComp records .

Download:   T-Corrections.pdf     P-Corrections.pdf   

4. Description of built-in temperature corrections calculated in the GEMS code from data in ReacDC records.

Download:   T-Corrections-Reac.pdf  

5. Description of built-in calculation of activity coefficients for aqueous species and solid-solution end-members (with setup codes in Phase records), soon will be superseded with description of TSolMod class library.

Download:   Activity-Coeffs.pdf  

6. Description of setups and built-in calculations related to GEM SCMs (surface complexation models).

Download:  SCM-Corrections.pdf  


7. A third-party contribution by S.V.Churakov: Description of built-in temperature, pressure and composition corrections of molar thermodynamic properties of non-electrolyte fluids and their mixtures.

Download:  Tpx-Corrections-CG-EoS.pdf  


8. A short article describing how the chemical equilibrium partitioning can be efficiently modelled with GEMS-PSI code, with special reference to two solid-solution aqueous solution systems relevant to nuclear waste disposal, as well as the status and the perspectives of development of the GEM-Selektor package.

Download:  GEMS-PSI-paper-2004.pdf 


More documents maybe added here!


GEM-Selektor home

Last updated:  24. 10. 2011

2003-2011  GEMS Development and Support Team.