Particle astrophysics with the Pierre Auger observatory. Australia's scientific reputation is enhanced through participation in international collaborations that aim to solve long-standing mysteries in science. The Pierre Auger Observatory covers a huge 3000 square km in western Argentina, where we are attempting to solve one of the biggest puzzles in modern astrophysics - the origin of the highest energy cosmic rays, particles 100 million times more energetic than we can produce on Earth. Ade ....Particle astrophysics with the Pierre Auger observatory. Australia's scientific reputation is enhanced through participation in international collaborations that aim to solve long-standing mysteries in science. The Pierre Auger Observatory covers a huge 3000 square km in western Argentina, where we are attempting to solve one of the biggest puzzles in modern astrophysics - the origin of the highest energy cosmic rays, particles 100 million times more energetic than we can produce on Earth. Adelaide scientists were founding members of the Auger project, and now have leading roles within the experiment. This is providing our students with access to world-class facilities and researchers in a field which has moved to the mainstream of astrophysics research.Read moreRead less
Instrumentation for the era of gravitational wave science. This project aims to study noise sources that limit the low-frequency performance of gravitational wave antenna: thermal noise, quantum radiation pressure noise and Newtonian noise. Gravitational wave detection is a new way in which to observe our universe. Although detectors such as advanced LIGO (Laser Interferometer Gravitational-Wave Observatory) should detect gravitational waves, further sensitivity improvement, particularly at low ....Instrumentation for the era of gravitational wave science. This project aims to study noise sources that limit the low-frequency performance of gravitational wave antenna: thermal noise, quantum radiation pressure noise and Newtonian noise. Gravitational wave detection is a new way in which to observe our universe. Although detectors such as advanced LIGO (Laser Interferometer Gravitational-Wave Observatory) should detect gravitational waves, further sensitivity improvement, particularly at low frequencies, will be needed to provide event rates necessary for astronomy. Expected project outcomes will support the development of the first free mass interferometer to operate at 120K using silicon optics, a vital facility for the world community. Pushing the boundaries of measurement may also drive innovation in optical sensing with potential applications in defence, security and exploration.Read moreRead less
Ultra-sensitive third-generation gravitational wave detectors. Second-generation gravitational wave detectors that will directly detect gravitational waves for the first time are currently being assembled. Their sensitivity will be limited by intrinsic thermal motion of the atoms in the mirror coatings and the quantum nature of the laser beams in the detectors. This project aims to develop new designs with the aim of circumventing these limitations and developing the ultra-sensitive optical metr ....Ultra-sensitive third-generation gravitational wave detectors. Second-generation gravitational wave detectors that will directly detect gravitational waves for the first time are currently being assembled. Their sensitivity will be limited by intrinsic thermal motion of the atoms in the mirror coatings and the quantum nature of the laser beams in the detectors. This project aims to develop new designs with the aim of circumventing these limitations and developing the ultra-sensitive optical metrology required to realise those designs. It is expected that the increased sensitivity of these third-generation detectors will allow more detailed measurement of the gravitational wave signals and provide unprecedented understanding of some of the most violent events in the universe.Read moreRead less
Mechanisms of sound absorption at the nanoscale. Understanding the interaction of sound with nanoscale structures will guide the creation of novel carbon nanotube materials, optimised for sound absorption, which have potential application anywhere that noise exists and needs to be attenuated. Fuel savings from reduced drag and weight in applications such as jet aircraft engines are also expected.
Linguistic analysis of Ngarrindjeri texts. The Ngarrindjeri language of the Lower Murray of South Australia was richly documented in the nineteenth and mid-twentieth centuries. The largest body of texts (163 texts in Berndt and Berndt, 1993) is a treasure-trove of language and cultural knowledge from the 1940s, but has received little linguistic attention, because of difficulties in interpreting writing conventions and because of the inadequate translations provided. Through systematic linguisti ....Linguistic analysis of Ngarrindjeri texts. The Ngarrindjeri language of the Lower Murray of South Australia was richly documented in the nineteenth and mid-twentieth centuries. The largest body of texts (163 texts in Berndt and Berndt, 1993) is a treasure-trove of language and cultural knowledge from the 1940s, but has received little linguistic attention, because of difficulties in interpreting writing conventions and because of the inadequate translations provided. Through systematic linguistic analysis and reconstructions, this project aims to shed light on how Ngarrindjeri changed over the 100 years since first documentation, how clan languages differed, and how Ngarrindjeri texts and sentences were structured. It is expected to provide important insight into the variation expected in language contact situations.Read moreRead less
Positron Nano-Dosimetry: Fundamental Measurements of Positron Interactions and their use in State-of-the-Art Modelling of Positron Transport. This proposal will provide unique experimental and theoretical information on how positrons, the electron antiparticles, interact with matter, in particular with biologically important molecules. This data will be used in a unique set of modelling approaches which will provide, for the first time, an insight into how positrons are transported through gases ....Positron Nano-Dosimetry: Fundamental Measurements of Positron Interactions and their use in State-of-the-Art Modelling of Positron Transport. This proposal will provide unique experimental and theoretical information on how positrons, the electron antiparticles, interact with matter, in particular with biologically important molecules. This data will be used in a unique set of modelling approaches which will provide, for the first time, an insight into how positrons are transported through gases, liquids and ultimately, soft matter. It will thus have important ramifications for diagnostic tools such as Positron Emission Tomography. The fundamental research will also shed light on one of the key 'mysteries' of life - why the biological building blocks of life possess a definite " handedness", or chirality.Read moreRead less