Status of liquid lithium target activities in IFMIF-EVEDA

Nakamura, Hiroo; Agostini, P.*; Groeschel, F.*

In this presentation, status of the liquid lithium (Li) target activities will be presented. In International Fusion Materials Irradiation Facility (IFMIF), intense neutron flux is produced by D-Li stripping reaction. The liquid Li target system consists of a target assembly, a main loop and a purification loop. Design requirement is to provide a stable Li jet at a maximum speed of 20 m/s. A cold trap and two kinds of hot trap are applied to control impurities below 10 wppm for nitrogen and 1 wppm for tritium. To maintain reliable continuous operation, various diagnostics are attached. The backplate made of RAFMs is located in the most severe region of neutron irradiation (60 dpa/y). Life time of the backplate will be evaluated considering DBTT etc. For replacement of the backplate by remote handling, two design options of replaceable backplate are investigated. In the EVEDA, Li test loop is planned and will start till early 2011.

Language	:	English
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Meeting title	:	9th International Workshop on Spallation Materials Technology (IWSMT-9)
Held date	:	2008/10
Location (city)	:	Sapporo
Location (country)	:	Japan
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Keywords	:	no keyword
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Registration No. : BB20082463
JAEA Abstracts No. :
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