Energy composition of high-energy neutral beams on the COMPASS tokamak

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F16%3A00464276" target="_blank" >RIV/61389021:_____/16:00464276 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11320/16:10334381

Result on the web

<a href="http://dx.doi.org/10.1515/nuka-2016-0069" target="_blank" >http://dx.doi.org/10.1515/nuka-2016-0069</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1515/nuka-2016-0069" target="_blank" >10.1515/nuka-2016-0069</a>

Result language

angličtina

Original language name

Energy composition of high-energy neutral beams on the COMPASS tokamak

Original language description

The COMPASS tokamak is equipped with two identical neutral beam injectors (NBI) for additional plasma heating. They provide a beam of deuterium atoms with a power of up to (2 300) kW. We show that the neutral beam is not monoenergetic but contains several energy components. An accurate knowledge of the neutral beam power in each individual energy component is essential for a detailed description of the beam--plasma interaction and better understanding of the NBI heating processes in the COMPASS tokamak. Thisnpaper describes the determination of individual energy components in the neutral beam from intensities of thenDoppler-shifted D lines, which are measured by a high-resolution spectrometer viewing the neutral beam-linenat the exit of NBI. Furthermore, the divergence of beamlets escaping single aperture of the last acceleratingngrid is deduced from the width of the Doppler-shifted lines. Recently, one of the NBI systems was modifi ed bynthe removal of the Faraday copper shield from the ion source. The comparison of the beam composition and thenbeamlet divergence before and after this modifi cation is also presented.

Czech name

—

Czech description

—

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BL - Plasma physics and discharge through gases

OECD FORD branch

—

Project

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

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2016

Confidentiality

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

Name of the periodical

Nukleonika

ISSN

0029-5922

e-ISSN

—

Volume of the periodical

61

Issue of the periodical within the volume

4

Country of publishing house

PL - POLAND

Number of pages

5

Pages from-to

419-423

UT code for WoS article

000387150200005

EID of the result in the Scopus database

2-s2.0-84995470835