Ziel
ANDRA IS INVOLVED IN THE RESEARCH AND DEVELOPMENT PROGRAMME FOR THE TEST DISPOSAL OF RADIOACTIVE WASTES (HAW PROJECT) CARRIED OUT BY GSF-IFT IN THE ASSE SALT MINE NEAR BRAUNSCHWEIG (FRG). ECN (NETHERLANDS) AND ENRESA (SPAIN) ARE ALSO PART OF THIS PROJECT. THE ANDRA'S PARTICIPATION CONSISTS OF SEVERAL TOPICS :
- GAMMA-RAY DOSE ASSESSMENT (PREDICTION AND MEASUREMENT)
- STUDY OF THE RADIOLYSIS OF SALT
- STUDY OF HEAT EFFECTS ON THE ROCKMASS.
THESE EXPERIMENTS INCLUDE :
- DESIGN AND CONSTRUCTION OF SPECIAL EQUIPMENT ADAPTED TO THE VERY DEMANDING TEST CONDITIONS
- IN-SITU MEASUREMENTS (DOSIMETRY, INCLINOMETRY)
- LABORATORY INVESTIGATIONS (IRRADIATIONS, ANALYSIS, CALCULATIONS).
ANDRA'S SUBCONTRACTORS ARE CEA (COMMISSARIAT A L'ENERGIE ATOMIQUE), IPG (INSTITUT DE PHYSIQUE DU GLOBE), LMS (LABORATOIRE DE MECANIQUE DES SOLIDES DE L'ECOLE POLYTECHNIQUE).
1. GAMMA-RAY MEASUREMENTS : GAMMA DOSES AND DOSE RATES ARE RECORDED IN VARIOUS LOCATION OF THE HAW TEST FIELD OR HANDLING EQUIPMENT USING BOTH SOLID-STATE DOSIMETERS AND IONIZATION CHAMBERS SYSTEMS.
2. CALCULATION OF DOSE DISTRIBUTION : THEORETICAL CALCULATIONS OF GAMMA FLUX IN THE ROCKSALT SURROUNDING THE SOURCES ARE PERFORMED USING A THREE DIMENSION COMPUTER MODEL WHICH TAKE INTO ACCOUNT ALL MECHANICAL, CHEMICAL AND ISOTOPIC DATA OF THE TEST.
3. PARAMETRIC STUDY OF THE RADIOLYSIS OF SALT : ASSE SALT SAMPLES ARE IRRADIATED IN A FRENCH FACILITY AT DIFFERENT DOSE RATES, INTEGRATED DOSES AND TEMPERATURES. THE GASES RELEASED ARE THEN ANALYZED.
4. INCLINOMETRY MEASUREMENTS : HIGH SENSITIVITY MEASUREMENTS ARE INSTALLED AROUND THE TEST GALLERIES, IN A WAY TO ASSESS THE DISPLACEMENTS DUE TO HEATING AND KNOW THE LONG-TERM MECHANICAL BEHAVIOUR ROCKMASS.
Wissenschaftliches Gebiet
Programm/Programme
Thema/Themen
Data not availableAufforderung zur Vorschlagseinreichung
Data not availableFinanzierungsplan
CSC - Cost-sharing contractsKoordinator
92266 Fontenay-aux-Roses
Frankreich