text:   Energy Density Plasmas",4,"['New arXiv paper, ""An Imaging Refractometer for Density Fluctuation Measurements in High Energy Density Plasmas"" <LINK>. This new diagnostic analyses a laser beam passing through #turbulent #Plasma, recording ray locations and ray deflections in orthogonal axes. <LINK>', 'The idea is that the spectrum of ray deflections relates to the spectrum of density fluctuations within the turbulent plasma. These fluctuations were studied with digital Fourier transforms of shadowgraphy and schlieren images, but our new technique resolves much smaller scales. https://t.co/CoHkahN2Cb', 'We compare our diagnostic to existing methods using ray tracing techniques, and present data from an experiment which shows the exquisite detail we can capture. Next up: going beyond the power spectrum and looking for signatures of intermittency in magnetohydrodynamic turbulence. https://t.co/uvxT9JaJW1', ""Thanks to everyone who has helped with this paper, it's been a long journey. The data is from 2016, so it's taken a pandemic to finally analyse it. Along the way we've developed a really nice ray-tracing/ray-transfer-matrix code which we can use for all our optical diagnostics.""]",20,07,1122