Optical and electrical diagnostics for the investigation of edge turbulence in fusion plasmas

R. Cavazzana, P. Scarin, G. Serianni, M. Agostini, F. Degli Agostini, V. Cervaro, L. Lotto, Y. Yagi, H. Sakakita, H. Koguchi, Y. Hirano

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

A new, two dimensional and fast diagnostic system has been developed for studying the dynamic structure of plasma turbulence; it will be used in the edge of the re versed-field pinch devices TPE-RX and RFX. The system consists of a gas-puffing nozzle, 32 optical channels measuring Hαemitted from the puffed gas (to study the optical emissivity of turbulent patterns and to analyze structures in two dimensions), and an array of Langmuir probes (to compare the turbulent pattern with the optical method and to measure the local plasma parameters). The signals can be acquired at 10 Msamples/s with 2 MHz band width. The design of the system, calibrations, and tests of the electronic circuitry and the optical sensors are presented. © 2004 American Institute of Physics.
Original languageEnglish
Pages (from-to)4152 - 4154
Number of pages3
JournalReview of Scientific Instruments
Volume75
Issue number10 II
DOIs
Publication statusPublished - Oct 2004
Externally publishedYes

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Instrumentation

Cite this

Cavazzana, R., Scarin, P., Serianni, G., Agostini, M., Agostini, F. D., Cervaro, V., ... Hirano, Y. (2004). Optical and electrical diagnostics for the investigation of edge turbulence in fusion plasmas. Review of Scientific Instruments, 75(10 II), 4152 - 4154. https://doi.org/10.1063/1.1789589