1. RFX-mod Programme Workshop 2009 – 20-22 January 2009 Scaling and validation plans Paolo Franz, Monica Spolaore

2. RFX-mod Programme Workshop 2009 – 20-22 January 2009 1) Optimization and validation of a reference RFX-mod database 2) Assessment of RFX scaling laws 3) Experiments and studies aiming at the comparison of global performance between RFP devices. 4) Localization of RFX-mod performance in fusion parameter space Data validation and scaling group mission

3. RFX-mod Programme Workshop 2009 – 20-22 January 2009 RFX-mod 2008 scalings: examples In most cases scaling are obtained from “private ” databases or build-up for a given project/conference: (see i.e. Innocente RFP-WS08, PiovesanEPS08, LorenziniAPS08 …) SH= SHAx QSH i

4. RFX-mod Programme Workshop 2009 – 20-22 January 2009 Work in progress : pulse file versions Aims:  pulse file with validated data  possibility of modifications (calculated data and calibrations, new data) and traceability modified pulse files will work in the same way of the original ones a procedure has been developed to trace modifications to pulse files, in order to guarantee that derived quantities are aligned with modifications the new procedure allows retrieving and displaying of older versions. versions of data are identified by their insertion dates (MDSPlus feature) A specific database of modifications will support the pulse file versions management and traceability

5. RFX-mod Programme Workshop 2009 – 20-22 January 2009 pulse file modifications: next steps Some details for the version creation are going to be completed (i.e. operational procedure (user  administrator), routines documentation in progress,...) commissioning steps to be defined:  Commissioning of the procedure on a limited and agreed number of shots  first campaign for pulse file updating... useful tools in progress with the aim of a better and easier usableness  web visualization of the modifications and easy comparison with the original signals  web access of Traverser a general presentation of the pulse file modification procedure will be organized soon (specific comments from users)

6. RFX-mod Programme Workshop 2009 – 20-22 January 2009 Pohm estimate An example of possible application of the new tool provided by the pulse file version is given by the estimate of the confinement parameter. work is in progress in order to evaluate such modifications: Include the measured Te profile in the calculation of the poloidal beta study of transients can play a major role in the present RFX-mod operations (i.e. QSH transition …).Time evolution of confinement parameter estimate would be useful and work is in progress on  the account for time evolution of pressure profiles  evaluation of pohm with improved time resolution

7. RFX-mod Programme Workshop 2009 – 20-22 January 2009 Summary database Public database: automatic daily procedure for adding data in the various tables from the pulse file  Default not validated data  Some tables are manually filled (ex. ‘confinement’, ’spectroscopy’…) Summary database documentation:  available on intranet page http://intranet.igi.cnr.it/servizi_tecnici/servizio_calcolo/ software/Dblib/dblib.htm http://intranet.igi.cnr.it/servizi_tecnici/servizio_calcolo/ software/Dblib/dblib.htm  Self documented tables through routines (IDL, …) Useful tool: the validation procedure should be extended (see next slides)

8. RFX-mod Programme Workshop 2009 – 20-22 January 2009 RFX-mod plasma parameters explored in 2008 Average parameters in the flat-top (source: summary database)

9. RFX-mod Programme Workshop 2009 – 20-22 January 2009 Future plans/proposals: documentation update of documentation of the online post processing programs a documentation of control algorithms is proposed pulsefile (version traceability, routines, web tools…) Encourage the easy and accessible description of diagnostics

10. RFX-mod Programme Workshop 2009 – 20-22 January 2009 Data validation proposals cross-validation, comparison of same parameter from different diagnostics:  ne (TS, Interferometer,GPI,probes), Te (in different radial position)... Validation status: flags on signals/data (default unchecked)  in order to obtain a database of marked shots (with checked and useful data)  avoiding duplication of validation procedure

11. RFX-mod Programme Workshop 2009 – 20-22 January 2009 Future plans/proposals: database collection Verification of the existing database and not covered regions Selected shots for a continuous database  highlight of suitable shots periodically (for example each week)  several information for a limited number of shots  Including a subset of validated parameters Selection of important parameters, i.e. for confinement estimate  several diagnostics and people have to be involved (including also the same information from different diagnostics) Parameter set including ex. profiles, tomographic reconstruction, magnetic boundary information...  Times: time average on given time window, trigger events (significant time instants), ex. confinement estimate during transients…) Proposal of periodic scan series at the state of art of the discharge performance and setting up Main aim: selected good RFX pulses  under given condition and fully diagnosed

12. RFX-mod Programme Workshop 2009 – 20-22 January 2009 database development and maintenance Verification of the existing database periodic scan series at the state of art continuous database

13. RFX-mod Programme Workshop 2009 – 20-22 January 2009 Future plans/proposals: scaling Scaling for perspectives of RFX/RFP (projections) Scaling on selected particular states detected in RFX-mod (QSH, SHAx …) Comparison between different configurations obtained in RFX-mod (RFP, tokamak, ULq) Comparison with others RFPs (MST, Extrap-T2R, RELAX)

14. RFX-mod Programme Workshop 2009 – 20-22 January 2009 conclusion Proposals from DV&SG  Documentation  Database development and maintenance  Scalings We invite the researcher team to collaborate in order to achieve such goals Suggestions are welcome