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

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 reversed-field pinch devices TPE-RX and RFX. The system consists of a gas-puffing nozzle, 32 optical channels measuring H{sub {alpha}} emitted 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.

Authors:
; ; ; ; ; ; ; ; ; ;  [1]
  1. Consorzio RFX, Associazione Euratom-ENEA sulla Fusione, corso Stati Uniti 4, Padova 35127 (Italy)
Publication Date:
OSTI Identifier:
20641258
Resource Type:
Journal Article
Journal Name:
Review of Scientific Instruments
Additional Journal Information:
Journal Volume: 75; Journal Issue: 10; Conference: 15. topical conference on high temperature plasma diagnostics, San Diego, CA (United States), 19-22 Apr 2004; Other Information: DOI: 10.1063/1.1789589; (c) 2004 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0034-6748
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; BOUNDARY LAYERS; CALIBRATION; ELECTRON TEMPERATURE; EMISSIVITY; FLUCTUATIONS; ION TEMPERATURE; LANGMUIR PROBE; MHZ RANGE 01-100; PLASMA; REVERSE-FIELD PINCH; TPE-RX DEVICE; TURBULENCE

Citation Formats

Cavazzana, R, Scarin, P, Serianni, G, Agostini, M, Degli Agostini, F, Cervaro, V, Lotto, L, Yagi, Y, Sakakita, H, Koguchi, H, Hirano, Y, and AIST, Tsukuba, Ibaraki 305-8568. Optical and electrical diagnostics for the investigation of edge turbulence in fusion plasmas. United States: N. p., 2004. Web. doi:10.1063/1.1789589.
Cavazzana, R, Scarin, P, Serianni, G, Agostini, M, Degli Agostini, F, Cervaro, V, Lotto, L, Yagi, Y, Sakakita, H, Koguchi, H, Hirano, Y, & AIST, Tsukuba, Ibaraki 305-8568. Optical and electrical diagnostics for the investigation of edge turbulence in fusion plasmas. United States. https://doi.org/10.1063/1.1789589
Cavazzana, R, Scarin, P, Serianni, G, Agostini, M, Degli Agostini, F, Cervaro, V, Lotto, L, Yagi, Y, Sakakita, H, Koguchi, H, Hirano, Y, and AIST, Tsukuba, Ibaraki 305-8568. 2004. "Optical and electrical diagnostics for the investigation of edge turbulence in fusion plasmas". United States. https://doi.org/10.1063/1.1789589.
@article{osti_20641258,
title = {Optical and electrical diagnostics for the investigation of edge turbulence in fusion plasmas},
author = {Cavazzana, R and Scarin, P and Serianni, G and Agostini, M and Degli Agostini, F and Cervaro, V and Lotto, L and Yagi, Y and Sakakita, H and Koguchi, H and Hirano, Y and AIST, Tsukuba, Ibaraki 305-8568},
abstractNote = {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 reversed-field pinch devices TPE-RX and RFX. The system consists of a gas-puffing nozzle, 32 optical channels measuring H{sub {alpha}} emitted 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.},
doi = {10.1063/1.1789589},
url = {https://www.osti.gov/biblio/20641258}, journal = {Review of Scientific Instruments},
issn = {0034-6748},
number = 10,
volume = 75,
place = {United States},
year = {Fri Oct 01 00:00:00 EDT 2004},
month = {Fri Oct 01 00:00:00 EDT 2004}
}