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Heavy ion detection experiments were carried out with superconducting series array tunnel junctions. 40Ar beam from linear accelerator was introduced to a cryostat and stopped in a substrate on which series array tunnel junctions were fabricated. An energy resolution of 4.2% was obtained for 191 MeV 40Ar, but linearity proved poor for energy ranges from 136 MeV to 191 MeV.
Date of Publication: June 2005