Please cite this article in press as: I. Kirienko, et al., Engineering analyses of Divertor Thomson scattering system, Fusion Eng. Des. (2017), http://dx.doi.org/10.1016/j.fusengdes.2017.05.036 ARTICLE IN PRESS G Model FUSION-9520; No. of Pages 4 Fusion Engineering and Design xxx (2017) xxx–xxx Contents lists available at ScienceDirect Fusion Engineering and Design jo ur nal home p age: www.elsevier.com/locate/fusengdes Engineering analyses of Divertor Thomson scattering system Ivan Kirienko a,∗ , Igor Buslakov a , Victor Modestov a , Alexander Nemov a , Roman Fedorenko a , Egor Toibich a , Mikhail Kochergin b , Eugene Mukhin b , Andrey Litvinov b , Alexandr Koval b , Philip Andrew c a Peter the Great Saint Petersburg Polytechnic University, 195251 SPb, 29 Polytechnicheskaya, Russian Federation b Ioffe Physico-Technical Institute, 194021 SPb, 26 Polytechnicheskaya St., Russian Federation c ITER Organization,Route de Vinon sur Verdon, 13115, Saint Paul Lez Durance, France h i g h l i g h t s • New design of the Divertor Thomson Scattering is presented. • Thermal, electromagnetic and seismic analyses are conducted. • P-type and S-type damage are explored. • Conclusions about the obtained stresses and construction survivability are made. a r t i c l e i n f o Article history: Received 3 October 2016 Received in revised form 28 April 2017 Accepted 7 May 2017 Available online xxx Keywords: ITER Divertor port Thomson scattering Thermal analysis Electromagnetic analysis Seismic analysis a b s t r a c t The ITER Divertor Thomson Scattering system is designed to provide an instrument capable of measuring the profiles of electron temperature and relative profiles of electron density in the outer divertor plasma. Main components of construction are front rack, back rack, neutron shielding and diagnostic mirrors. The whole Divertor Thomson Scattering system has been analyzed to be consistent with thermal, mechanical, electromagnetic and seismic loads which can affect construction. All the obtained results, such as displacement and stress maps, temperature distribution and values of forces and torques in construction during plasma disruption events, can lead to some significant changes in construction design in order to improve the system. © 2017 Published by Elsevier B.V. 1. Introduction ITER Divertor Thomson Scattering (DTS) system consists of 2 main parts: Front (Generic) and Back racks, which are mainly made as supporting structures of diagnostic subsystems and mounted on external interfaces. The rack containing the ITER Thomson scattering system in- vessel components is to be attached to the vacuum vessel lower divertor port. DTS construction is designed to measure the profiles of electron temperature and relative profiles of electron density in the outer divertor plasma with the help of Thomson scattering method. Diag- ∗ Corresponding author. E-mail addresses: kirienko id@spbstu.ru, ivankirienko@gmail.com (I. Kirienko), vmodestov@spbstu.ru (V. Modestov). nostic elements are mirrors made of SiC material. They are installed into front and back diagnostic racks. Other elements of the DTS are made of SS316 steel. This report represents results of the calculations made using Ansys software which is based on finite element analysis method. In this paper results of thermal, structural, electromagnetic and seis- mic analysis according to [1] are shown. Also, main conclusions related to these calculations are included. Calculations of the DTS previous design are represented in [2]. Latest design of the DTS is shown in the figure below (Fig. 1). 2. Thermal analysis 2.1. Normal operation In the Normal operation mode the DTS system is being heated by the nuclear energy released during thermonuclear reaction. Six http://dx.doi.org/10.1016/j.fusengdes.2017.05.036 0920-3796/© 2017 Published by Elsevier B.V.