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

Lomanowski, B.A. and Meigs, A.G. and Conway, N.J. and Zastrow, K.-D. and Sharples, R.M. and Heesterman, P. and Kinna, D. and JET EFDA Contributors, (2014) 'Enhanced visible and near-infrared capabilities of the JET mirror-linked divertor spectroscopy system.', Review of scientific instruments., 85 (11). 11E432.


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.

Item Type:Article
Additional Information:Contributed paper, published as part of the Proceedings of the 20th Topical Conference on High-Temperature Plasma Diagnostics, Atlanta, Georgia, USA, June 2014
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Publisher statement:© 2014 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Review of Scientific Instruments 85, 11E432 (2014) and may be found at
Date accepted:01 July 2014
Date deposited:14 April 2015
Date of first online publication:18 September 2014
Date first made open access:No date available

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