Electrostatic sensors for SPIDER experiment: Design, manufacture of prototypes, and first tests

M. Brombin, M. Spolaore, G. Serianni, A. Barzon, L. Franchin, R. Pasqualotto, N. Pomaro, L. Schiesko, C. Taliercio, L. Trevisan

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Abstract

A system of electrostatic sensors has been designed for the SPIDER (Source for the production of Ions of Deuterium Extracted from RF plasma) experiment, prototype RF source of the ITER NBI (neutral beam injection). A prototype of the sensor system was manufactured and tested at the BATMAN (BAvarian Test MAchine for Negative ions) facility, where the plasma environment is similar to that of SPIDER. Different aspects concerning the mechanical manufacturing and the signal conditioning are presented, among them the RF compensation adopted to reduce the RF effects which could lead to overestimated values of the electron temperature. The first commissioning tests provided ion saturation current values in the range assumed for the design, so the deduced plasma density estimate is consistent with the expected values.
Original languageEnglish
Article number02A715
Pages (from-to)-
JournalReview of Scientific Instruments
Volume85
Issue number2
DOIs
Publication statusPublished - 1 Feb 2014
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Instrumentation

Cite this

Brombin, M., Spolaore, M., Serianni, G., Barzon, A., Franchin, L., Pasqualotto, R., Pomaro, N., Schiesko, L., Taliercio, C., & Trevisan, L. (2014). Electrostatic sensors for SPIDER experiment: Design, manufacture of prototypes, and first tests. Review of Scientific Instruments, 85(2), -. [02A715]. https://doi.org/10.1063/1.4831746