Enhancement of the FIDA diagnostic at ASDEX Upgrade for velocity space tomography. (11th January 2016)
- Record Type:
- Journal Article
- Title:
- Enhancement of the FIDA diagnostic at ASDEX Upgrade for velocity space tomography. (11th January 2016)
- Main Title:
- Enhancement of the FIDA diagnostic at ASDEX Upgrade for velocity space tomography
- Authors:
- Weiland, M
Geiger, B
Jacobsen, A S
Reich, M
Salewski, M
Odstrčil, T - Other Names:
- collab.
- Abstract:
- Abstract: Recent upgrades to the FIDA (fast-ion D-alpha) diagnostic at ASDEX Upgrade are discussed. The diagnostic has been extended from three to five line of sight arrays with different angles to the magnetic field, and a spectrometer redesign allows the simultaneous measurement of red- and blue-shifted parts of the Doppler spectrum. These improvements make it possible to reconstruct the 2D fast-ion velocity distribution from the FIDA measurements by tomographic inversion under a wide range of plasma parameters. Two applications of the tomography are presented: a comparison between the distributions resulting from 60 keV and 93 keV neutral beam injection and a velocity-space resolved study of fast-ion redistribution induced by a sawtooth crash inside and outside the sawtooth inversion radius.
- Is Part Of:
- Plasma physics and controlled fusion. Volume 58:Number 2(2016:Feb.)
- Journal:
- Plasma physics and controlled fusion
- Issue:
- Volume 58:Number 2(2016:Feb.)
- Issue Display:
- Volume 58, Issue 2 (2016)
- Year:
- 2016
- Volume:
- 58
- Issue:
- 2
- Issue Sort Value:
- 2016-0058-0002-0000
- Page Start:
- Page End:
- Publication Date:
- 2016-01-11
- Subjects:
- tomography -- sawtooth -- crash -- transport -- Doppler -- spectroscopy
Plasma (Ionized gases) -- Periodicals
Controlled fusion -- Periodicals
530.44 - Journal URLs:
- http://ioppublishing.org/ ↗
http://iopscience.iop.org/0741-3335 ↗ - DOI:
- 10.1088/0741-3335/58/2/025012 ↗
- Languages:
- English
- ISSNs:
- 0741-3335
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - BLDSS-3PM
British Library STI - ELD Digital store - Ingest File:
- 8486.xml