Enhanced visible and near-infrared capabilities of the JET mirror-linked divertor spectroscopy system | Zendy

B. Lomanowski | Zendy; A. Meigs | Zendy; N. J. Conway | Zendy; K.-D. Zastrow | Zendy; R. M. Sharples | Zendy; P. Heesterman | Zendy; D. Kinna | Zendy

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Enhanced visible and near-infrared capabilities of the JET mirror-linked divertor spectroscopy system

Author(s) -

B. Lomanowski,

A. Meigs,

N. J. Conway,

K.-D. Zastrow,

R. M. Sharples,

P. Heesterman,

D. Kinna

Publication year - 2014

Publication title -

review of scientific instruments

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.605

H-Index - 165

eISSN - 1089-7623

pISSN - 0034-6748

DOI - 10.1063/1.4893426

Subject(s) - divertor , spectroscopy , infrared , materials science , grating , deuterium , infrared spectroscopy , near infrared spectroscopy , optics , plasma diagnostics , jet (fluid) , plasma , atomic physics , physics , optoelectronics , tokamak , nuclear physics , quantum mechanics , thermodynamics

The mirror-linked divertor spectroscopy diagnostic on JET has been upgraded with a new visible and near-infrared grating and filtered spectroscopy system. New capabilities include extended near-infrared coverage up to 1875 nm, capturing the hydrogen Paschen series, as well as a 2 kHz frame rate filtered imaging camera system for fast measurements of impurity (Be II) and deuterium Dα, Dβ, Dγ line emission in the outer divertor. The expanded system provides unique capabilities for studying spatially resolved divertor plasma dynamics at near-ELM resolved timescales as well as a test bed for feasibility assessment of near-infrared spectroscopy

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