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

被引：12

作者：

Gonzalez-Martin, J. ^{[1
,2
]}

Ayllon-Guerola, J. ^{[1
,2
]}

Garcia-Munoz, M. ^{[2
,3
]}

Herrmann, A. ^{[4
]}

Leitenstern, P. ^{[4
]}

De Marne, P. ^{[4
]}

Zoletnik, S. ^{[5
]}

Kovacsik, A. ^{[5
]}

Galdon-Quiroga, J. ^{[2
,3
]}

Rivero-Rodriguez, J. ^{[1
,2
]}

Rodriguez-Ramos, M. ^{[2
,3
]}

Sanchis-Sanchez, L. ^{[2
,3
]}

Dominguez, J. ^{[1
]}

机构：

[1] Univ Seville, Dept Mech & Mfg Engn, C Camino Descubrimientos S-N, Seville, Spain

[2] Univ Seville, CNA, CSIC, Seville, Spain

[3] Univ Seville, Dept Atom Mol & Nucl Phys, Fac Phys, E-41012 Seville, Spain

[4] Max Planck Inst Plasma Phys, Garching, Germany

[5] Wigner RCP, Budapest, Hungary

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2018年 / 89卷 / 10期

关键词：

D O I：

10.1063/1.5038968

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

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 X 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.

引用

页数：5

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