X-ray diffraction and neutron diffraction will be used to investigate the crystal structural alterations in timber during drying in one or more timber species. This volume varies with both electron beam energy, the X-ray line energy and the composition of the phases on either side of the boundaries to the point where determination of the boundary position is not possible simply by inspection or simple segmentation methods. BSE coefficients on either side of the interface. The effects of tilt of the interface on the X-ray and BSE signals will be examined. This results in a transfer of energy through the aperture.
Optical systems require nanometre scale apertures and light guides.
By analogy the physics asociated with the structure of aperture designs employed for NFOM may be investigated using cm scale devices simplifying fabrication and investigation. Dr D.R. Cousens, Centre for Microscopy and Microanalysis Acoustic emissions from fracture processes occurring during crack propagation may be used to locate the source of the emission in 3D with suitable detectors and data processing. Suitable for PgradDip , Honours. Microanalysis A prototype BSE detector has been previously constructed for operation in the ESEM using plastic scintillators, light pipes and photomultipliers. The ESEM is often operated at elevated temperatures where the thermal emission of electrons by the sample and furnace can swamp the signal of the conventional ESD detector.