29th Symposium on Fusion Technology (SOFT 2016)

P4.054 Investigations on camera integration and data acquisition architecture for the ITER equatorial Vis/IR diagnostic

8 Sep 2016, 14:20

1h 40m

Foyer 2A (2nd floor), 3A (3rd floor) (Prague Congress Centre)

Board: 54

Poster D. Diagnostics, Data Acquisition and Remote Participation P4 Poster session

Speaker

Vincent Martin (Bertin Technologies)

Description

The ITER equatorial visible and infrared wide-angle viewing system is a first plasma diagnostic that will be used to image the visible plasma boundary and the in-vessel components temperatures for real-time machine protection and plasma control purposes, as well as offline physics studies. The system will be installed in four equatorial ports and will have 15 lines of sight covering most of the in-vessel component surface. The preliminary design of the system is under development by a consortium of academic and industrial partners on behalf of the European domestic agency (F4E). This project is currently at the system-level design stage where different design options including optical design, integration of key components and back-end electronics are elaborated and assessed in order to select the best adapted architecture. In this context, this paper reports on the current achievements on sensor and data acquisition hardware architecture options and on the physical integration of the cameras in the port-cell environment.The sensor pre-selection is based on a market survey of visible and infrared cameras. A scoring metric has been defined to compare the different camera models in terms of relevance with the current measurement requirements. A global configuration is then drawn for the complete system.The proposed data acquisition hardware architecture takes into account the long distance to transport the camera signal, the camera data throughput and the ITER recommendations for hardware selection.The investigation on the camera integration relies on the available volume in front of the optical line outputs in the port-cell, the nuclear radiation levels and the human access limitation for maintenance operation. The goal is to propose a concept of a shielded cabinet able to host the defined number of cameras, providing local shielding for the electronics and minimizing the human presence for camera maintenance activities in the port-cell area.