JET Cooperation
Research status
IPP is one of the main participants in the scientific programme of JET. In 2010 there were 45 physicists from IPP involved in experiments at JET. They operated diagnostics, contributed to the research at JET with theory studies and also analyses in surface physics, and conducted experiments. This activity is initiated by an experimentation proposal from the interested parties and includes visits to JET and participation in experiments there. Generally, the results are then analysed in detail at the home laboratories.
Preparation of ITER
As the JET programme primarily serves for the preparation of ITER, comparison between JET and Garching's ASDEX Upgrade – the two largest ITER-like tokamaks in Europe – is particularly fruitful. Furthermore, physicists and engineers from IPP are also involved in defining and realising upgrades of the JET device. Again, the objective is to achieve better predictions of ITER's performance.
The newly clad plasma vessel: 4,500 carbon tiles have been replaced by beryllium and tungsten tiles using the Remote Handling Manipulator Arm (left hand side in the background) (photo: JET)
After a nearly two-years shutdown for the installation of the ITER-like wall with beryllium and tungsten tiles (see an
interview with JET director Francesco Romanelli), with the first plasma on 24 August 2011 JET has begun a new era. For 26 years JET hads been a predominantly carbon-walled machine. Now it is a new device with the same wall materials as ITER. JET will be progressively brought up to full power to allow a proper investigation of the ITER materials under conditions approaching those of ITER.
With this change to a carbon-free environment JET takes a step, which ASDEX Upgrade has already taken, that will link the programs of these two machines even more strongly. For the leadership of one of the two JET Task Forces for 2011consequentially an IPP scientist was appointed. Task Force E1is responsible for the development of plasma scenarios which are compatible with an ITER-like Wall.
Sketch of JET (by courtesy of JET)
Preparation of ITER
As the JET programme primarily serves for the preparation of ITER, comparison between JET and Garching's ASDEX Upgrade – the two largest ITER-like tokamaks in Europe – is particularly fruitful. Furthermore, physicists and engineers from IPP are also involved in defining and realising upgrades of the JET device. Again, the objective is to achieve better predictions of ITER's performance.
The newly clad plasma vessel: 4,500 carbon tiles have been replaced by beryllium and tungsten tiles using the Remote Handling Manipulator Arm (left hand side in the background) (photo: JET)
After a nearly two-years shutdown for the installation of the ITER-like wall with beryllium and tungsten tiles (see an
interview with JET director Francesco Romanelli), with the first plasma on 24 August 2011 JET has begun a new era. For 26 years JET hads been a predominantly carbon-walled machine. Now it is a new device with the same wall materials as ITER. JET will be progressively brought up to full power to allow a proper investigation of the ITER materials under conditions approaching those of ITER.With this change to a carbon-free environment JET takes a step, which ASDEX Upgrade has already taken, that will link the programs of these two machines even more strongly. For the leadership of one of the two JET Task Forces for 2011consequentially an IPP scientist was appointed. Task Force E1is responsible for the development of plasma scenarios which are compatible with an ITER-like Wall.
Sketch of JET (by courtesy of JET)
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