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Content archived on 2024-04-15

EXPERIMENTAL STUDY OF GLASS SAMPLING DEVICES

Objective

THE PROPERTIES AND CHARACTERISTICS OF THE HIGH LEVEL WASTE CONTAINMENT GLASS IN THE PROCESS DEVELOPED AND IMPLEMENTED IN FRANCE ARE ENSURED BY MAINTAINING PROCESS PARAMETERS AT THEIR SPECIFICATION VALUES AND BY MONITORING THE MATERIAL THROUGHPUT. FRENCH NUCLEAR SAFETY AUTHORITIES HAVE EXPRESSED THE DESIRE THAT ADDITIONAL GLASS SAMPLES BE TAKEN AT THE MOMENT OF CASTING FROM THE MELTING FURNACE INTO THE METAL WASTE CANISTER.

THE PROPOSED SAMPLING PROGRAMME ENVISAGES TWO HYPOTHESES:
- DEVELOPMENT OF A SYSTEM THAT CAN BE DIRECTLY IMPLEMENTED IN EXISTING FACILITIES WITH MINIMAL MODIFICATION WORK.
- DEVELOPMENT OF A NEW SYSTEM REQUIRING PROVISIONS IN THE DESIGN OF FUTURE WASTE CONDITIONING FACILITIES.
Two systems have been developed which enable waste containment glass to be representatively sampled. The first system allows sampling to be carried out in facilities not initially designed for this function. The second device was designed and developed for new vitrification facilities.
THE WORK FOR EACH DEVELOPMENT PROGRAMME INVOLVES DESIGNING, MANUFACTURING, TESTING AND QUALIFYING THE PROPOSED TECHNIQUE, AND ENSURING RELIABILITY BY DEMONSTRATION IN NON-RADIOACTIVE INDUSTRIAL FACILITIES.

1. DEVICE NO 1
1.1. DESIGN STUDY
1.2. DEVICE OPTIMIZATION
1.3. EQUIPMENT MANUFACTURING
1.4. PRELIMINARY OPERATION TESTING
1.5. MODIFICATION AND QUALIFICATION TESTING

2. DEVICE NO 2
2.1. DESIGN STUDY
2.2. DEVICE OPTIMIZATION
2.3. EQUIPMENT MANUFACTURING
2.4. PRELIMINARY OPERATION TESTING
2.5. MODIFICATION AND QUALIFICATION TESTING.

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Coordinator

Commissariat à l'Energie Atomique (CEA)
EU contribution
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Address
Centre d'Études Nucléaires de la Vallée du Rhône Cité de Marcoule
30205 Bagnols-sur-Cèze
France

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