DC Field | Value | Language |
---|---|---|
dc.contributor.author | Field, A. R. | ko |
dc.contributor.author | Dunai, D. | ko |
dc.contributor.author | Gaffka, R. | ko |
dc.contributor.author | Ghim, Youngchul | ko |
dc.contributor.author | Kiss, I. | ko |
dc.contributor.author | Meszaros, B. | ko |
dc.contributor.author | Krizsanoczi, T. | ko |
dc.contributor.author | Shibaev, S. | ko |
dc.contributor.author | Zoletnik, S. | ko |
dc.date.accessioned | 2019-04-15T15:52:57Z | - |
dc.date.available | 2019-04-15T15:52:57Z | - |
dc.date.created | 2013-03-11 | - |
dc.date.created | 2013-03-11 | - |
dc.date.issued | 2012-01 | - |
dc.identifier.citation | REVIEW OF SCIENTIFIC INSTRUMENTS, v.83, no.1 | - |
dc.identifier.issn | 0034-6748 | - |
dc.identifier.uri | http://hdl.handle.net/10203/255372 | - |
dc.description.abstract | A new beam emission spectroscopy turbulence imaging system has recently been installed onto the MAST spherical tokamak. The system utilises a high-throughput, direct coupled imaging optics, and a single large interference filter for collection of the Doppler shifted D-alpha emission from the similar to 2 MW heating beam of similar to 70 keV injection energy. The collected light is imaged onto a 2D array detector with 8 x 4 avalanche photodiode sensors which is incorporated into a custom camera unit to perform simultaneous 14-bit digitization at 2 MHz of all 32 channels. The array is imaged at the beam to achieve a spatial resolution of similar to 2 cm in the radial (horizontal) and poloidal (vertical) directions, which is sufficient for detection of the ion-scale plasma turbulence. At the typical photon fluxes of similar to 10(11) s(-1) the achieved signal-to-noise ratio of similar to 300 at the 0.5 MHz analogue bandwidth is sufficient for detection of relative density fluctuations at the level of a few 0.1%. The system is to be utilised for the study of the characteristics of the broadband, ion-scale turbulence, in particular its interaction with flow shear, as well as coherent fluctuations due to various types of MHD activity. [doi:10.1063/1.3669756] | - |
dc.language | English | - |
dc.publisher | AMER INST PHYSICS | - |
dc.subject | ANOMALOUS TRANSPORT | - |
dc.subject | PLASMA | - |
dc.title | Beam emission spectroscopy turbulence imaging system for the MAST spherical tokamak | - |
dc.type | Article | - |
dc.identifier.wosid | 000300594900031 | - |
dc.identifier.scopusid | 2-s2.0-84859206119 | - |
dc.type.rims | ART | - |
dc.citation.volume | 83 | - |
dc.citation.issue | 1 | - |
dc.citation.publicationname | REVIEW OF SCIENTIFIC INSTRUMENTS | - |
dc.identifier.doi | 10.1063/1.3669756 | - |
dc.contributor.localauthor | Ghim, Youngchul | - |
dc.contributor.nonIdAuthor | Field, A. R. | - |
dc.contributor.nonIdAuthor | Dunai, D. | - |
dc.contributor.nonIdAuthor | Gaffka, R. | - |
dc.contributor.nonIdAuthor | Kiss, I. | - |
dc.contributor.nonIdAuthor | Meszaros, B. | - |
dc.contributor.nonIdAuthor | Krizsanoczi, T. | - |
dc.contributor.nonIdAuthor | Shibaev, S. | - |
dc.contributor.nonIdAuthor | Zoletnik, S. | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | ANOMALOUS TRANSPORT | - |
dc.subject.keywordPlus | PLASMA | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.