Neutron diffraction facilities at the high flux reactor, Petten

The High Flux Reactor in Petten is equipped with twelve beam tubes for the extraction of thermal neutrons for applications in materials and medical sc ience. Beam tubes HB4 and HB5 are equipped with diffractometers for residua l stress and powder investigations. Recently at HB4 the Large Component Neu tron Diffraction Facility has been installed. it is a unique facility with respect to its capability of handling heavy components up to 1000 kg in res idual stress testing. Its basic features are described and the first applic ations on thick piping welds are shown, The diffractometer at HB5 can be se t up for powder and stress measurements. Recent applications include temper ature dependent measurements on phase transitions in intermetallic compound s and on Li ion energy storage materials. (C) 2000 Elsevier Science B.V. Al l rights reserved.