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The V0 version of the criticality package CRISTAL was jointly developed by CEA, COGEMA and IPSN(then IRSN) between 1995 and 1998.
For the first time in France, the three main actors of industry and nuclear safety gathered themselves to develop in synergy and co-operation a package of tools dedicated to the criticality risk assessment in the fuel cycle facilities, in nuclear power plants or radioactive materials transportation.
These tools can as well be used by facility original designers (COGEMA, COGEMA Logistics, SGN...) as by the ones in charge of the safety assessment of the criticality of these facilities or transport packaging.
The V1 CRISTAL version, released in 2005, allows the couplings CRISTAL -cesar to take into account the "Burn-Up Credit" in the criticality studies. The coupling Cristal-Darwin will be done in a near future.
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Flash Animations (Java MORET Tools)
I. The CRISTAL Package includes two distinct computation chains :
- The "standard" calculation (APOLLO2 code - MORET 4 and APOLLO2 code Sn),
- The "reference" evaluation (TRIPOLI 4 code).
These two complementary ways are used in different fields :
- the "standard" calculation (APOLLO2 - MORET 4 codes) is used to make calculations so-called "production calculations", the "standard" way (APOLLO2 code Sn) is usually used for calculations of standards and also calculations in 2d geometry (APOLLO2- code Sn (X there or R-z));
- the "reference" evaluation is rather used to carry out calculations in "accurate" geometry and to validate some numerical approximations and physics used in the "standard" way.
| CRISTAL V0.1 CODES | Entities responsible for the development | Librairies of calculation |
| APOLLO2 V2.4.3 | CEA-Saclay/DEN/DM2S/SERMA | CEA 93 - V4 |
| MORET4 V4.A.4 | IRSN/DSU/SEC | Sections venant du calcul APOLLO2 |
| TRIPOLI V4.1 | CEA-Saclay/DEN/DM2S/SERMA | JEF 2.2 |
II. Data Libraries and CRISTAL procedures
Nuclear datas come from the JEF2.2 evaluation which was created by The European project JEF (Joint European File). for reactors' physics.
APOLLO2 industrial applications code uses neutron library CEA93.V4.
Recommendations related to the diagrams of code were put in the package of procedures which are integrated in libraries APROC and APROC_CRISTAL in order to guide the user in the choice of the options of the various codes and their sequence for the calculations carried out with the "standard" way of the package.
III. CRISTAL GUI
The CRISTAL package contains various tools to help the users in the modeling of their geometry and the construction of their data file.
- The CIGALES code provides the data files APOLLO2;
- The Graphic Editor for Moret ( EGM ) generates the geometrical description of the MORET 4 code data file;
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IV. Synthesis :
| CRISTAL TOOLS |
| CRISTAL V0.1 | CRISTAL V0.2 | CRISTAL V1 | FONCTIONS PRINCIPALES |
| APOLLO2 V2.4.3 | APOLLO2 V2.4.3 | APOLLO2 V2.5 | Generating the cross sections of the various mediums contained in the configuration geometry studied |
| MORET4 V4.A.4 | MORET4 V4.A.6 | MORET4 V4.B.1 | Calculates the Keff of a system using the data results from APOLLO2 code |
| TRIPOLI V4.1 | TRIPOLI V4.2 | TRIPOLI V4.3 | Calculates the Keff of a system using the cross sections of the international evaluations format ENDF (JEF2, ENDF/B6...) |
| CIGALES V1.0 | CIGALES V2.0 | CIGALES V3.0 | Calculates the atomic concentrations of the mediums and generates a data file for APOLLO2 with the geometrical and chemical data provided by the user |
| EGM V2.1 | EGM V3.0 | EGM V3.0 | Interactive creation (in 3d) of the geometry of the data file MORET4 |
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