Ben Shepherd and Norbert Collomb discussing the magnet measurements with CERN colleagues. The magnet is shown in the foreground on the stretched wire bench.
The tuneable permanent magnet quadrupole designed and built by ASTeC and Technology Department for the Compact Linear Collider Project (link opens in a new window) is now undergoing detailed magnetic testing at CERN.
The magnet has already been successfully tested at Daresbury and these results are now being cross checked using complementary measurement techniques to confirm that the magnet specification has been achieved.
Ben Shepherd and Jim Clarke from the Magnetics and Radiation Sources Group, together with Norbert Collomb from TD travelled to CERN on 7th November 2012 to witness the tests and to discuss the design of a second type of quadrupole which will be prototyped at Daresbury in 2013. The CERN experts were pleased to confirm that the field strength and tuneability were as expected. More detailed measurements of the field quality will take place shortly on a second test bench.