Details

Autor(en) / Beteiligte

• MURASE, Takanori
• MOTOJIMA, Gen
• TANAKA, Hirohiko
• MORISAKI, Tomohiro
• MITA, Masahiro

Titel

Development of New Concept In-Vessel Cryo-Sorption Pump for LHD Closed Helical Divertor

Ist Teil von

• Plasma and Fusion Research, 2016/03/17, Vol.11, pp.1205030-1205030

Ort / Verlag

Nagoya: The Japan Society of Plasma Science and Nuclear Fusion Research

Erscheinungsjahr

2016

Quelle

EZB Free E-Journals

Beschreibungen/Notizen

• The in-vessel cryo-sorption pump for the Closed Helical Divertor (CHD) in the Large Helical Device (LHD) has been developed at the National Institute for Fusion Science (NIFS). An organic adhesive-free bonding technique for attaching activated carbon pellets to a copper cold panel was invented, which employs the indium solder with intermediate materials. The prototype of the CHD with the newly developed cryo-sorption pump was installed in the LHD. Performance of the cryo-sorption pump was estimated in the LHD vacuum vessel. A satisfactory result of the maximum pumping speed up to 9 m3/s was obtained with one divertor module in one toroidal section (10% of the torus), which is equivalent to the required pumping speed of the CHD.