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The practical realisation of dosimetry standards at NPL is supported by theoretical and computational modelling.
A new state-of-the-art clinical linac facility was opened in November 2008 at the NPL in addition to the existing research linac facility.
The Practical Course in Reference Dosimetry run by the National Physical Laboratory is primarily aimed at radiotherapy physicists and would benefit anyone wishing to improve their practical dosimetry techniques.
The success of radiotherapy is largely down to increasingly complex treatments
The most common antennas used for communication systems, and measurements of electric fields are dipole and monopole wire antennas.
Our aim in this research work is to construct, test and report a new antenna facility for minimally invasive measurements of electrically small antennas.
Electrically small antennas for wireless communications applications are prone to excite common mode currents on cables connected to them for measuring their performance.
The accurate measurement of radiation patterns of electrically small antennas (ESAs) requires a reflectionless environment and minimal disturbance from the antenna support and feed cable.
A commonly held perception is that the results of indentation studies of polymer composites, by instrumented nanoindentation testing and atomic force microscopy, automatically reveal an interphase of mechanically different properties to the matrix or reinforcement.
Hydrogen can provide a range of calculable reference frequencies, from the rf to the VUV, which are linked by welldefined atomic theory.
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Light microscopes have a resolution limit of around 250 nanometres (nm), which means anything smaller will appear blurred.
Photoelectrochemical activity screening of dyes on TiO2 surfaces is becoming increasingly relevant as industry tries to expand commercialisation of dye-sensitized solar cells (DSSCs).
Joint winners of the NPL Science Poster Fair 2012
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