Our research with the particle physics rolling grant at Sheffield attempts to progress understanding of some of the most important questions concerning the origins and make-up of the Universe. One of these big questions is to understand what gives fundamental particles their mass. Part of our work on the huge ATLAS experiment at the Large Hadron Collider (LHC) at CERN in Geneva is aimed at this question, in particular to see if the famous Higgs Boson particle exists. The best theories we have to explain particle mass predict that it should be there. We will play a key role in analysing the vast amount of data soon expected to make this exciting discovery. Another search at ATLAS will be to determine if the so-called supersymmetry (SUSY) theory is correct. This is our best prospect for understanding how particles interact at high energy and itself predicts a new class of particles. The concept states that for every known fundamental particle there exists a super-partner particle. We worked for many years developing the key silicon technology now installed in ATLAS to search for these particles. Now we are ready with our software to play a key role in analysing the data that will hopefully discover that they exist. One of the implications of SUSY theory is the likelihood that the most stable new particle, the so-called lightest supersymmetric particle (LSP), probably is very abundant throughout the Universe, making up about 25% of its mass. This would easily explain one of the big mysteries in physics, the so-called Dark Matter seen by astronomers from its gravitational effects on stars and galaxies. Our group has pioneered techniques to search directly for dark matter particles in the laboratory and is participating in a new multi-national venture, EURECA. This will build a tonne-sized device using low temperature superconductors to perform a new search. We will contribute to the key aspect of how to shield the experiment from natural background particles, like muons. Another mystery in the Universe are the strange properties of its most abundant particle, the neutrino. This has only recently been found to have a small mass and to readily change form between three different 'flavours' while propagating through space. Details of this are not fully understood but it is known that if properly unravelled it might answer another big question, why there is so little anti-matter in the Universe. We are working on these questions through participation in the big international T2K neutrino beam experiments in Japan. We are building a key component of the detectors and will, within two years, start to analyse the data to unravel these issues. T2K probably will not do a full job, so we have instigated in the UK work on a new neutrino detector concept, based on liquid argon, contributing to the FJNE programme. We plan to build test devices to enable the next generation of neutrino experiments to follow T2K. This is linked also to our work on accelerator technology, MICE, where we are building test beam targets. This is a vital step towards the ultimate facility, a neutrino factory. We are working on key technology for this within the UKNF project. Finally, much of the hardware and computer code developed for these fundamental studies have great relevance well outside our main research. There are many examples, involving projects with a dozen UK companies. For instance, our work with Corus Ltd. on new techniques for neutron detection, has allowed development of new monitors to detect illicit transport of nuclear materials at ports. This will continue now and broaden into medical applications. Our dark matter work has produced a new national facility for underground science, the Boulby laboratory. Here we have started a new project on climate change, SKY, to explore the effect of comic rays on cloud formation.

THz technology is a very new and exciting frontier in science and engineering. A vast number of potential applications ranging from superior high resolution RADAR systems for both military and civilian use to medical diagnostic aids for treatment of bed sores, skin cancer and burns, wireless office communications and even archaeological and astronomical applications have been proposed. The medical applications are particularly exciting and are attracting much media attention, THz radiation having already been dubbed T-Rays by the pressThis project proposes the development of just such a source of THz radiation - a novel form of Planar Gunn diode. This device has already been physically realized and the prototypes have been proven to work (under a Scottish Executive Proof of Concept grant). This grant proposal seeks to develop the full potential of the device, exploring and exploiting its unusual geometry which makes it ideally suited to integration in MMIC circuitry in contrast to conventional Gunn diodes, increasing its power and developing the technology to the point where it will be taken up by British industry.

Abstracts are not currently available in GtR for all funded research. This is normally because the abstract was not required at the time of proposal submission, but may be because it included sensitive information such as personal details.

Broad ThemesCrime and terrorism threaten States, businesses and individuals; they increasingly exploit technology, sometimes more effectively than the security forces that oppose them. Our proposed Security Science DTC aims to promote fundamental science and research but to do so in a training environment that will provide a broader understanding of these threats; the pace at which they evolve, and the extent to which holistic responses are increasingly required if we are to contain them or to recover more rapidly from attack. We aim to prepare a future generation of security scientists better able to face these rapidly emerging new threats in crime and security. To do so this DTC will catalyse a truly interdisciplinary research effort that brings together multiple domains in security science to focus on the physical and cyber security of the State (borders and critical infrastructures, broadly construed, including financial, transport, energy, health and communication), business and the individual. Need and impact on the research landscape Science and technology have been utilized to protect against the threats outlined above, yet it is now widely accepted that security must be integrated, with a much greater awareness of the environmental operating contexts. This need has been expressed by governments (through policy papers and the creation of new bodies with interorganisational mandates such as the Serious and Organised Crime Agency), industry (through their increasing engagement with academic institutions to develop a new generation of security technologies that take into account factors such as behavioral response and ethical sensitivity) and research councils (eg. through their new 'Global Uncertainties: Security for all in a changing world' programme which cuts across all research council remits). The EPSRC is in an ideal position to invest in a national DTC where a critical mass of researchers can foster innovation and encourage and nurture an integrated systems approach that recognizes the importance of environmental context, human factors, and public policy to security solutions. This vision is based on the observation that the benefits of introducing advanced technologies into the security arena are significantly enhanced by engagement with the broader social, political and economic contexts within which those technological solutions apply. It is clear that disciplines as far apart as psychology and electronic engineering should come together in new ways to combat security threats in a holistic manner. This enhanced sensitivity to interconnectedness and multidisciplinary will lead to more effective science and encourage synergies to develop, increase knowledge transfer and facilitate engagement with end-users. Security is a challenging domain that drives adventurous research in a wide range of disciplines represented in this proposal (e.g. cryptography, radiation physics, nanotechnology). A DTC that helps secure the future supply of researchers with strong links to and appreciation of problems in the security context will help support the long term vigour of these disciplines. The DTC will also provide the UK with a hub to spark synergistic collaboration with other centres working in these areas such as the US Centres for Excellence (eg. National Consortium for the Study of Terrorism and Responses to Terrorism (START), University of Maryland). We further believe that this DTC in integrated security science will act as a prototype for future similar activities around the world. Ultimately, research associated with this DTC will help to position the UK as the international leader in the development of a uniquely equipped generation of security scientists, delivering innovative research to meet one of society's greatest challenges.

Abstracts are not currently available in GtR for all funded research. This is normally because the abstract was not required at the time of proposal submission, but may be because it included sensitive information such as personal details.