Lead Lithium Ceramic Breeder

The llcb blanket concept consists of lithium titanate as ceramic breeder cb material in the form of packed pebble beds and pb 17li eutectic as multiplier breeder and coolant for the cb zones.

Lead lithium ceramic breeder.

India is a leader of llcb tbm concept and responsible for delivery and subsequent tests of the in llcb tbm in iter. Liquid metal lm breeders such as pure lithium or the eutectic lead lithium alloy pbli have a potential for attractive breeding blankets in fusion power plants because they can lead to tritium self sufficiency without additional neutron multiplier they are immune to irradiation damage have compared to ceramic breeders a high thermal con. Indian lead lithium cooled ceramic breeder llcb is o ne of the tritium breeding blanket concept in which li 2tio 3is proposed as the tritium breeder materials in the form of pebble bed for llcb tbm. Experiments were conducted with breeding blanket mock up consisting of two layers of breeder material lithium titanate pebbles and three layers of pur.

India has proposed a lead lithium cooled ceramic breeder llcb blanket as one of the feasible options for a demo relevant blanket concept. Ceramic breeder zones are surrounded by liquid lead lithium eutectic lle channels with the aim to extract the nuclear heat and further increase the tritium permeation ratio. The lead lithium ceramic breeder llcb tbm and its auxiliary systems are being developed by india for testing in iter machine. Additionally a system for the experimental estimation of the tritium breeding ratio tbr and the tritium breeding dynamics in a lead lithium cooled ceramic breeder llcb test module used in the iter is proposed.

Li 2tio 3 power was prepared by solid state reaction using lico 3 and tio 2 followed by ball milling and calcination. The radial dimensions of breeder neutron multiplier and structural material layers are similar to the current design of the indian lead lithium cooled ceramic breeder llcb blanket. The mock up assembly was irradiated with 14 mev neutrons from dt neutron generator. The plasma facing first wall is cooled by high pressure helium and the whole structure is made of reduced activation ferritic martensitic steel.

Lead lithium cooled ceramic breeder llcb concept. Specialists from russian federation are participating in design and r d activity on in llcb tbm according to the. The blanket module structure will be cooled by helium. Lead lithium ceramic breeder llcb tbm proposed by india will be tested in port 2 of the iter machine.

In this study a design for monitoring tritium breeding in the reactor is discussed.