New progresses in the IFMIF target and test cell design and a proposal for the specimen flow

Highlights: ► New progresses of IFMIF target and test cell (TTC) design are outlined. ► Designs of key components, e.g. shielding, interfaces, in the TTC are described. ► A specimen flow between TTC and other cells for high flux test module is proposed. ► Re-irradiating of irradiated specimens is available in this proposal. ► Test module handling cell is proposed to be separated to two sections. - Abstract: The development of the conceptual design of the IFMIF target and test cell (TTC) is briefly summarized by outlining the previous reference TTC design and the current modular test cell (MTC) concept. Based on the MTC concept, the latest progresses of the preliminary engineering design of the key TTC components, including the TTC vessel, the top shielding plugs, the removable intermediate ring, and the test module interface heads, are described. A specimen flow, based on handling requirements of the high flux test module, between the TTC, access cell (AC), test module handling cell (TMHC) and the post irradiation examination facilities is proposed as well as the function of the AC and TMHC is preliminary defined. The TMHC is proposed to be divided into a component handling cell and a rig handling cell regarding the dimension differences of the components to be handled inside of the cells. Re-use of irradiated specimens for another campaign of irradiation is also considered in this specimen flow.