Author/Authors :
Stork، نويسنده , , D. and Ageladarakis، نويسنده , , P. and Bell، نويسنده , , A.C. and Brennan، نويسنده , , P.D. and Browne، نويسنده , , A. and Browne، نويسنده , , M.L. and Butcher، نويسنده , , P.R. and Caldwell-Nichols، نويسنده , , C. and Chuilon، نويسنده , , P. and Cox، نويسنده , , S.J. and Davies، نويسنده , , N. and Dobbing، نويسنده , , J.A. and Dolgetta، نويسنده , , N. and Elsmore، نويسنده , , C.G. and How، نويسنده , , J.A. and Howie، نويسنده , , J. and Jones، نويسنده , , T.T.C. and Kaye، نويسنده , , A.S. and King، نويسنده , , Q. and Marchese، نويسنده , , V. and Obert، نويسنده , , Richard W. and Orchard، نويسنده , , J. and Papastergiou، نويسنده , , S. and Pearce، نويسنده , , R.J.H. and Svensson، نويسنده , , L. and van Veen، نويسنده , , J. and Wright، نويسنده , , M. and Young، نويسنده , , D.، نويسنده ,
Abstract :
In 1997, the JET device was operated for an extensive campaign with deuterium–tritium (D–T) plasmas (the DTE1 campaign). A comprehensive network of machine protection systems was necessary so that this experimental campaign could be executed safely without damage to the machine or release of activated material. This network had been developed over many years of JET deuterium plasma operation and therefore the modifications for D–T operation was not a significant problem. The DTE1 campaign was executed successfully and safely and the machine protection systems proved reliable and robust and, in the limited cases where they were required to act, functioned correctly. The machine protection systems at JET are described and their categorisation and development over time are summarised. The management, commissioning and operational experience during DTE1 are discussed and some examples of fault scenarios are described. The experience with protection systems at JET highlights the importance of correct design and philosophy decisions being taken at an early stage. It is shown that this experience will be invaluable data input to the safe operation of future large fusion machines.
