An experimental programme, the MEGAPIE project, began in 2000 at the Paul Scherrer Institut (PSI) in Zurich (Switzerland) concerning the construc­tion of an intensive spallation neutron source at the existing SINQ facility. It appeared immediately that such a programme would show very interesting results for the ADSR problematics.

The objectives are to study all the steps of the operation of an industrial liquid metal spallation source: design, building, operating and decommission.

The feasibility studies were performed in 2000, and the conceptual design in 2001. The system integration could be done in 2003, and the first tests and commissioning in 2004.

The MEGAPIE specifications are shown in table 13.2, and a preliminary design in figure 13.2.

Attatchment for Lifting Gear

Connectors for Supplies and Diagnostics

Shie/ding Plug

Heat removal zone

Manifold for Enclosure Coolant

Neutron production zone

Thermal Shield

Main Beam Window Inner Enclosure Window Outer Enclosure Window