Licensing ITER
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Licensing ITER
20-12-2010
• Reference• Marbach et al. Fusion Science and Technology
44 (2003) p. 251• Rodriguez-Rodrigo et al. Fusion Engineering
and Design 75-79 (2005) p. 1091• Alejaldre et al. FEC –IEAE 2008. See the pdf
given to you
The licensing procedure• ITER licensing follows the French regulation• Authority: Autorité de Sûreté Nucléaire (ASN)• Law and Decree: Law on transparency and
nuclear safety (TSN) no 2006-686 ( 13 june 2006) and Decree No 2007-1557 ( 02 Nov. 2007)
• ITER is considered as “Installation Nucléaire de Base” (INB) which means a nuclear installation (as a power plant)
• Reasons: Tritium and the level of activation of material ( Cf. Rosanvallon et al., Fusion Engineering &Design 85 (2010) 1788)
References for T
• Cf. Gugla et al. , Fusion Engineering &Design 82 (2007) 472
• Cristescu et al. , Fusion Science and Technology 52, ( 2007) 659
Some notion about T (1)
• Half life time: 12.32 years• Decay mode : decay with maximum energy
18.6 keV and average energy 5.7 keV• Activity: 3.6 1014 Bq.g-1
Some notion about T (2)
• Total natural inventory of T: estimated 3.6 kg (1300 PBq) produced through
14N +n 12C +T14N +n 3 4He + T16O+n 14C +T
Production: 0.15- 0.2 kg (50-70 PBq)
Some notion about T (3)
• Anthropogenic T:Mainly in heavy water fission reactor
(Pressurised heavy water reactor), of CANDU type ( CANadian Deuterium natural Uranium reactor)
Total production : 90 PBq/(Gwe*year) or about 0.3 kg/((Gwe*year) . A PWR produces about 2000 times less T
T and ITER
• During a 400s DT pulse, 0.4g of T is consumed.• About 2-3 kg of T is necessary for operation• 1 kg is in the Long Term Storage from external
source
Characteristics of the process
• Non prescriptive approach • Continuous dialog between the owner of the
INB (here ITER Organisation) and the ASN
The steps
Example: Dialog for 17 MA operation
includes 17 MA
Operation at 15 MA
Where are we?
• Rapport Préliminaire de Sécurité have been updated to answer questions.
• Next Step: Public Enquiry
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