First simultaneous measurements of Reynolds stress with ball-pen and Langmuir probes

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F17%3A00476139" target="_blank" >RIV/61389021:_____/17:00476139 - isvavai.cz</a>

Alternative codes found

RIV/68407700:21340/17:00316122

Result on the web

<a href="http://dx.doi.org/10.1063/1.4984240" target="_blank" >http://dx.doi.org/10.1063/1.4984240</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/1.4984240" target="_blank" >10.1063/1.4984240</a>

Result language

angličtina

Original language name

First simultaneous measurements of Reynolds stress with ball-pen and Langmuir probes

Original language description

A new multi-pin probe head was installed and tested at the COMPASS tokamak. The probe head consists of several ball-pen and Langmuir probes in similar geometric configurations, which enables fast, simultaneous measurements of the radial and poloidal electric field components from differences of plasma or floating potentials using appropriately positioned ball-pen or Langmuir probes, respectively. The fast measurements of the radial electric field are compared with other methodsnof measuring selected frequency components of the radial electric field. The radial profiles of the Reynolds stress calculated from correlations of electric field fluctuations obtained by either probe type are compared along with their spectral composition. Lower Reynolds stress values are found for Langmuir probes in comparison to ball-pen probes due to negative contributions from higher frequency fluctuations possibly associated with electron temperature fluctuations.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

21100 - Other engineering and technologies

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Review of Scientific Instruments

ISSN

0034-6748

e-ISSN

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Volume of the periodical

88

Issue of the periodical within the volume

6

Country of publishing house

US - UNITED STATES

Number of pages

8

Pages from-to

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UT code for WoS article

000404641300015

EID of the result in the Scopus database

2-s2.0-85020257420