Structural analysis of the ITER ex-vessel plasma position reflectometer components located in the gallery

Santiago Guillermo Cabrera Ramos, Esther Rincón, Álvaro Cappa, Teresa Estrada, José Martinez, Mercedes Medrano, Francisco Ramos, Laura Sánchez, Raúl Morón

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

The Plasma Position Reflectometry (PPR) diagnostic system is planned to provide information related to the edge electron density profile and plasma position at four defined locations distributed both poloidally and toroidally in the ITER vacuum vessel. It consists of five fully independent reflectometers grouped in three different paths, depending on the port through which are routed (Equatorial Port 10, Upper Port 01 and Upper Port 14), with different lengths and waveguide number and distribution. The sections of the ex-vessel transmission lines (TL) in the Gallery, between the two secondary confinement barriers, are considered “captive components”. They are installed as close as possible to the ceiling and are trapped by other systems installed below so they will not be accessible for repair. This paper summarizes the design, the analysis strategy and main results of global analyses for each PPR route in the Gallery in order to analyze global deformations, reactions on supports and identify the critical parts of the whole PPR system. Based on the results obtained in the global model, detailed models will be built in future studies for critical components to assess their structural integrity.

Original languageEnglish
Pages (from-to)1413-1418
Number of pages6
JournalFusion Engineering and Design
Volume146
DOIs
StatePublished - Sep 2019
Externally publishedYes

Bibliographical note

Funding Information:
The work leading to this publication has been funded partially by Fusion for Energy under Specific Grant AgreementF4E-FPA-375-SG05. This publication reflects the views only of the authors, and Fusion for Energy cannot be held responsible for any use which may be made of the information contained therein.

Funding Information:
The work leading to this publication has been funded partially by Fusion for Energy under Specific Grant Agreement F4E-FPA-375-SG05 . This publication reflects the views only of the authors, and Fusion for Energy cannot be held responsible for any use which may be made of the information contained therein.

Keywords

  • Finite element analysis
  • ITER diagnostic
  • Reflectometer
  • Structural analysis

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