First measurements of a scintillator based fast-ion loss detector near the ASDEX Upgrade divertor

J. Gonzalez-Martin, J. Ayllon-Guerola, M. Garcia-Munoz, A. Herrmann, P. Leitenstern, P. De Marne, S. Zoletnik, A. Kovacsik, J. Galdon-Quiroga, J. Rivero-Rodriguez, M. Rodriguez-Ramos, L. Sanchis-Sanchez, J. Dominguez

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A new reciprocating scintillator based fast-ion loss detector has been installed a few centimeters above the outer divertor of the ASDEX Upgrade tokamak and between two of its lower Edge Localized Modes (ELM) mitigation coils. The detector head containing the scintillator screen, Faraday cup, calibration lamp, and collimator systems are installed on a motorized reciprocating system that can adjust its position via remote control in between plasma discharges. Orbit simulations are used to optimize the detector geometry and velocity-space coverage. The scintillator image is transferred to the light acquisition systems outside of the vacuum via a lens relay (embedded in a 3D-printed titanium holder) and an in-vacuum image guide. A charge coupled device camera, for high velocity-space resolution, and an 8 × 8 channel avalanche photo diode camera, for high temporal resolution (up to 2 MHz), are used as light acquisition systems. Initial results showing velocity-space of neutral beam injection prompt losses and fast-ion losses induced by a (2, 1) neoclassical tearing mode are presented.

Original languageEnglish
Article number10I106
JournalReview of Scientific Instruments
Volume89
Issue number10
DOIs
Publication statusPublished - Oct 1 2018

Fingerprint

Phosphors
scintillation counters
Detectors
detectors
acquisition
Ions
cameras
Vacuum
remote control
vacuum
ions
beam injection
neutral beams
relay
Remote control
CCD cameras
collimators
holders
temporal resolution
Electric lamps

ASJC Scopus subject areas

  • Instrumentation

Cite this

Gonzalez-Martin, J., Ayllon-Guerola, J., Garcia-Munoz, M., Herrmann, A., Leitenstern, P., De Marne, P., ... Dominguez, J. (2018). First measurements of a scintillator based fast-ion loss detector near the ASDEX Upgrade divertor. Review of Scientific Instruments, 89(10), [10I106]. https://doi.org/10.1063/1.5038968

First measurements of a scintillator based fast-ion loss detector near the ASDEX Upgrade divertor. / Gonzalez-Martin, J.; Ayllon-Guerola, J.; Garcia-Munoz, M.; Herrmann, A.; Leitenstern, P.; De Marne, P.; Zoletnik, S.; Kovacsik, A.; Galdon-Quiroga, J.; Rivero-Rodriguez, J.; Rodriguez-Ramos, M.; Sanchis-Sanchez, L.; Dominguez, J.

In: Review of Scientific Instruments, Vol. 89, No. 10, 10I106, 01.10.2018.

Research output: Contribution to journalArticle

Gonzalez-Martin, J, Ayllon-Guerola, J, Garcia-Munoz, M, Herrmann, A, Leitenstern, P, De Marne, P, Zoletnik, S, Kovacsik, A, Galdon-Quiroga, J, Rivero-Rodriguez, J, Rodriguez-Ramos, M, Sanchis-Sanchez, L & Dominguez, J 2018, 'First measurements of a scintillator based fast-ion loss detector near the ASDEX Upgrade divertor', Review of Scientific Instruments, vol. 89, no. 10, 10I106. https://doi.org/10.1063/1.5038968
Gonzalez-Martin J, Ayllon-Guerola J, Garcia-Munoz M, Herrmann A, Leitenstern P, De Marne P et al. First measurements of a scintillator based fast-ion loss detector near the ASDEX Upgrade divertor. Review of Scientific Instruments. 2018 Oct 1;89(10). 10I106. https://doi.org/10.1063/1.5038968
Gonzalez-Martin, J. ; Ayllon-Guerola, J. ; Garcia-Munoz, M. ; Herrmann, A. ; Leitenstern, P. ; De Marne, P. ; Zoletnik, S. ; Kovacsik, A. ; Galdon-Quiroga, J. ; Rivero-Rodriguez, J. ; Rodriguez-Ramos, M. ; Sanchis-Sanchez, L. ; Dominguez, J. / First measurements of a scintillator based fast-ion loss detector near the ASDEX Upgrade divertor. In: Review of Scientific Instruments. 2018 ; Vol. 89, No. 10.
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