Diagnostics and Plasma Control

To arrive at the most effective scientific programme in support of ITER, the three large enhancement projects approved for JET will be accompanied by a significant upgrade of the present JET diagnostics and plasma control. The upgrades will include diagnostics for ITER scenario development and systems required to fully exploit the JET new projects. Final validation of diagnostics and control concepts for ITER could also be tested at JET before being installed on ITER. At the time of publication, many valuable proposals for diagnostics and plasma control have already been submitted by experts from EFDA Associated laboratories. They are now being considered by the EFDA Scientific and Technical Advisory Committee.

It is a matter of great satisfaction to the many contributors to the JET workprogramme, and in particular to those who designed and built JET 25 years ago, to see that the JET device is still capable of delivering results of significant importance in the future. With its unique multinational character, JET also offers a working environment and organisational structure that could be used to train future ITER users from all over the world. From the engineering point of view, further JET operation would not pose any serious challenges: a recent technical assessment confirmed that only ~15% of the lifetime of the main hardware components (magnetic coils and vessel) has been used to date.