Engineering issues on the diagnostic port integration in ITER upper port 18

• Published in: Fusion engineering and design Vol. 109-111; pp. 824 - 829
• Main Authors: Pak, Sunil, Bertalot, Luciano, Cheon, Mun Seong, Giacomin, Thibaud, Heemskerk, Cock J.M., Koning, Jarich F., Lee, Hyeon Gon, Nemtcev, Grigorii, Ronden, Dennis M.S., Seon, Chang Rae, Udintsev, Victor, Yukhnov, Nikolay, Zvonkov, Alexander
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01-11-2016
• Subjects: Diagnostics; ITER; Port integration; Upper port plug; Port integration; ITER; Upper port plug; Diagnostics
• ISSN: 0920-3796; 1873-7196
• DOI: 10.1016/j.fusengdes.2016.01.068

•Diagnostic port integration in the upper port 18 of ITER is presented in order to house the three diagnostic systems.•Issue on the neutron shielding in the upper port 18 is addressed and the shut-down dose rate in the interspace is summarized.•The maintenance strategy in the upper port 18 is described.
The upper port #18 (UP18) in ITER hosts three diagnostic systems: the neutron activation system, the Vacuum Ultra-Violet spectrometer system, and the vertical neutron camera. These diagnostics are integrated into three infrastructures in the port: the upper port plug, interspace support structure and port cell support structure. The port integration in UP18 is at the preliminary design stage and the current design of the infrastructure as well as the diagnostic integration is described here. The engineering issues related to neutron shielding and maintenance are addressed and the design approach is suggested.