Remote infrared view of JET divertor compatible with D-T operations

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Journal Title

Journal ISSN

Volume Title

A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Date

2023-09

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Mcode

Degree programme

Language

en

Pages

24

Series

Plasma Physics and Controlled Fusion, Volume 65, issue 9, pp. 1-24

Abstract

A remote viewing system located outside the biological shield wall to image the divertor region in JET is presented here. This paper focuses on the optical and mechanical designs of the installation of a line of sight which is capable of imaging the divertor over an optical distance of approximately 31 m. In addition, it includes the experience obtained during operations and it demonstrates its successful performance. This line of sight was the second viewing system used during the D-T campaign and it follows from the paper dedicated to the remote wide angle view line of sight which is also compatible with D-T operations and includes common elements to the construction of the two lines of sight. The main novel feature is the design in house of two glass reinforced plastic kinematic mounts standing vertically to each accommodate a mirror of 500 mm in diameter.

Description

Funding Information: This work has been carried out within the framework of the EUROfusion Consortium, funded by the European Union via the Euratom Research and Training Program (Grant Agreement No 101052200— EUROfusion). In addition, this work has also been carried out within the framework of the Contract for the Operation of the JET Facilities and has received funding from the European Union’s Horizon 2020 research and innovation programme. Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union or the European Commission. Neither the European Union nor the European Commission can be held responsible for them. Publisher Copyright: © 2023 Crown copyright, UKAEA

Keywords

cameras, divertor, JET, optical relay, remote

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Citation

Balboa, I, Rose, E, Matthews, G F, Croft, D, Stamp, M F, Silburn, S A, Williams, J C, Hepple, D, Huber, A, Whetham, S, Iglesias, D, Kinna, D J, Beldishevski, M, Figueiredo, J, Perez Von Thun, C, Balshaw, N, Horton, L D, Lobel, R C, Pearson, I J, Pepperell, K W, Fishpool, G, Lane, B, Zastrow, K D, Arnoux, G, Bodnar, G, Carman, P, Carvalho, P, Conway, N J, Huber, V, Karhunen, J, Kocsis, G, Manzanares, A, Puglia, P, Ruíz de Galarreta, C, Marren, C, Naish, J, Thompson, V K & JET Contributors 2023, ' Remote infrared view of JET divertor compatible with D-T operations ', Plasma Physics and Controlled Fusion, vol. 65, no. 9, 094002, pp. 1-24 . https://doi.org/10.1088/1361-6587/ace6d3