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Tritium Facilities for the LMJ Cryogenic Targets

O. Vincent-Viry et al.

Fusion Science and Technology / Volume 60 / Number 3 / October 2011 / Pages 885-888

ICF / Proceedings of the Ninth International Conference on Tritium Science and Technology

Two major Inertial Confinement Fusion (ICF) projects are currently in progress. The US program at the National Ignition Facility (NIF), which has taken its first firing of a cryogenic target with DT fuel this year, mainly relies on cryogenic targets with capillary filled capsule. For the French ICF experiments carried out on the Laser MegaJoule (LMJ), the nominal filling path of cryogenic target assemblies (CTAs) is permeation of DT fuel through the microshell. The CEA Valduc tritium facilities, where targets are filled, are thus original installations with specific designs and technologies.

This paper deals with the description of the tritium facilities for the LMJ cryogenic targets (twelve gloveboxes are needed to deliver 6 CTAs at the same time). After a short presentation of the whole gloveboxes chain, the paper will focus on the heart of the plant: the filling and cooling station (IRCC: 4 gloveboxes). 3 out of 4 of these gloveboxes (LCCR, LCTC and LCPC) are at the moment under commissioning at the manufacturer's site. The last one (LCGC) has been delivered to CEA Valduc and is currently under testing with deuterium.

A description of the IRCC design and specifications is given as well as the main results of the commissioning process.

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