Measurements of plasma potential and electron temperature by ball-pen probes in RFX-mod

• Дата: 2009
• Автори: Brotankova, J., Adamek, J., Martines, E., Stockel, J., Spolaore, M., Cavazzana, R., Serianni, G., Vianello, N., Zuin, M.
• Формат: Стаття
• Мова: English
• Опубліковано: Національний науковий центр «Харківський фізико-технічний інститут» НАН України 2009
• Назва видання: Вопросы атомной науки и техники
• Теми: Магнитное удержание
• Онлайн доступ: http://dspace.nbuv.gov.ua/handle/123456789/88131
• Назва журналу: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Цитувати: Measurements of plasma potential and electron temperature by ball-pen probes in RFX-mod / J. Brotankova, J. Adamek, E. Martines, J. Stockel, M. Spolaore, R. Cavazzana, G. Serianni, N. Vianello, M. Zuin // Вопросы атомной науки и техники. — 2009. — № 1. — С. 16-18. — Бібліогр.: 11 назв. — англ.

The ball-pen probe (BPP) is an innovative electric probe for direct measurements of the plasma potential. This probe was developed in IPP Prague and it is based on the Katsumata probe concept. Combined measurements of the plasma potential by a BPP and floating potential by a Langmuir probe provide also the value of the electron temperature. First test of the BPP on the RFX-mod reversed field pinch in Padova has been performed in November 2006. The BPP head, made of boron nitride, is equipped with four graphite collectors, which are positioned at four different radial positions h inside four shafts hollow into the probe head. The radial profile of the plasma potential and also the electron temperature were measured.