International Topical Meeting on Nuclear Research Applications and Utilization of Accelerators
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ADS/ET-09
The MEGAPIE Operation Synthesis W. Wagner Paul Scherrer Institut, Villigen, Switzerland Corresponding Author: werner.wagner@psi.ch The MEGAwatt Pilot Experiment (MEGAPIE) was initiated by six European institutions (PSI, FZK, CEA, SCK-CEN, ENEA, CNRS), JAEA (Japan), DOE (US) and KAERI (Korea) with the objective to demonstrate the safe operation and to fathom the neutronic performance of a liquid metal (lead bismuth eutectic, LBE) target for high power spallation and ADS applications. The MEGAPIE target was operated at the Swiss Spallation Neutron Source SINQ starting mid-August 2006, for a scheduled irradiation period until 21st December 2006. The continuous (51 MHz) 590 MeV proton beam hitting the target reached routinely an average current of 1300 μA, corresponding to a beam power 0.78 MW. The presentation summarizes the main features of the target and the ancillary systems, and reports on the operational experiences made with this target during start-up and routine operation. The general performance is highlighted, including transient reactions after beam trips or interrupts, the performance of new beam and target safety devices, and the functional experience and lessons learned with the ancillary systems. The authors have assigned to the International Atomic Energy Agency a non-exclusive, royalty-free licence to publish this paper.
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