Publications

“On the phase velocity in between weak and strong plasma edge turbulence”, P. Manz, D. Prisiazhniuk, T. Happel, S. Freethy, K. Hallatschek, B.D. Scott, U.Stroth, and the ASDEX Upgrade Team,Plasma Phys. Control. Fusion, submitted

“Validation of ion-scale gyrokinetic simulations with measurements of electron temperature fluctuations and density-temperature phase angles on ASDEX Upgrade”, S.J. Freethy, T. Goerler, A.J. Creely, G.D. Conway, T. Happel, A.E. White and the ASDEX Upgrade Team, Phys. Plasmas25, 055903 (2018); https://doi.org/10.1063/1.5018930

“Turbulent Electron Temperature Fluctuation Profile Measurements on the ASDEX Upgrade Tokamak using Upgraded Correlated Electron Cyclotron Emission.”, A. J. Creely, W.M. Burke, R. Leccacorvi, W.C. Parkin, D.R. Terry, A.E. White, G.D. Conway, S. J. Freethy, and the ASDEX Upgrade Team. Rev. Sci. Instrum., (accepted)

“Effects of density gradients and fluctuations at the plasma edge on ECEI measurements at ASDEX Upgrade”,B. VanovacE. Wolfrum, S. S. DenkA.F. MinkF.M. Martin LaggnerG. BirkenmeierM. WillensdorferE. ViezzerM. HoelzlS.J. FreethyM. G DunneA. Lessig and N. C LuhmannPlasma Phys. Control. Fusion 60, 045002 (2018); http://iopscience.iop.org/article/10.1088/1361-6587/aaa7ac

“Validation of ion scale GENE simulations in L-mode plasmas at ASDEX Upgrade”, S.J. Freethy, A. Creely, T. Görler, G.D. Conway, T. Happel,P. Hennequin, J. Pinzon, D. Prisiazhniuk, U. Stroth, A.E. White and the ASDEX Upgrade Team, Proceedings of the 44th EPS Conference on Plasma Physics (2017), http://ocs.ciemat.es/EPS2017PAP/pdf/O4.122.pdf

“Comparison of detailed experimental wavenumber spectra with gyrokinetic simulation aided by two-dimensional fullwave simulations”, T. Happel, T. Görler, P. Hennequin, C. Lechte, M. Bernert, G.D. Conway, S. J. Freethy, C. Honoré, J. R. Pinzón, U. Stroth and The ASDEX Upgrade Team, Plasma Phys. Control. Fusion 59, 054009 (2017); https://doi.org/10.1088/1361-6587/aa645b

“Validation of nonlinear gyrokinetic simulations of L- and I-mode plasmas on Alcator C-Mod”, A. J. Creely, N. T. Howard, P. Rodriguez-Fernandez, N. Cao, A. E. Hubbard, J. W. Hughes, J. E. Rice, A. E. White, J. Candy, G. M. Staebler, G. D. Conway, S. J. Freethy, and C. Sung, Phys. Plasmas 24, 056104 (2017); http://dx.doi.org/10.1063/1.4977466

“Measurement of turbulent electron temperature fluctuations on the ASDEX Upgrade tokamak using correlated Electron Cyclotron Emission”, S.J. Freethy , G.D. Conway , I. Classen , A.J. Creely , T. Happel , B. Vanovac , A.E. White and the ASDEX Upgrade Team, Proceedings of the 43rd EPS Conference on Plasma Physics (2016), http://ocs.ciemat.es/EPS2016PAP/pdf/P1.024.pdf

“Measurement of turbulent electron temperature fluctuations on the ASDEX Upgrade tokamak using correlated electron cyclotron emission”, S. J. Freethy, G. D. Conway, I. Classen, A. J. Creely, T. Happel, A. Köhn, B. Vanovac and A. E. White, Rev. Sci. Instrum. 87, 11E102 (2016); http://dx.doi.org/10.1063/1.4958908

“Electron Kinetics Inferred from Observations of Microwave Bursts During Edge Localized Modes in the Mega-Amp Spherical Tokamak”, S. J. Freethy K. G. McClements, S. C. Chapman, R. O. Dendy, W. N. Lai, S. J. P. Pamela, V. F. Shevchenko, and R. G. L. Vann, Phys. Rev. Lett,. 114 125004 (2015); http://dx.doi.org/10.1103/PhysRevLett.114.125004

 “2D Doppler backscattering using synthetic aperture microwave imaging of MAST edge plasmas”,D.A. Thomas, K.J. Brunner, S.J. Freethy, B.K. Huang, V.F. Shevchenko and R.G.L. Vann, Nucl. Fusion, 56 026013 (2016); http://dx.doi.org/10.1088/0029-5515/56/2/026013

“Development progress of Correlation ECE and n-T phase-angle diagnostics for AUG”, S.J. Freethy et al,Proceeding of the 12th international reflectometry workshop, 2015; IRW link

“Localised Microwave Bursts During ELMs on MAST” S.J. FreethyV.F. ShevchenkoB. Huang and R.G.L Vann,
EPJ Web of Conferences, 87, 03008 (2015);
 https://doi.org/10.1051/epjconf/20158703008

“Lensless passive and active microwave imaging on MAST”, S J Freethy, B K Huang, V F Shevchenko and R G L Vann, Plasma Physics and Controlled Fusion, 55, 124010 (2013); http://dx.doi.org/10.1088/0741-3335/55/12/124010

 “Synthetic aperture microwave imaging with active probing for fusion plasma diagnostics”, V.F Shevchenko, R G L Vann, S J Freethy and B K Huang, Journal of Instrumentation, 7 P10016 (2012); http://dx.doi.org/10.1088/1748-0221/7/10/P10016

“Optimisation of wide field interferometric arrays via simulated annealing of a beam efficiency function”, S. J. Freethy, V.F. Shevchenko and R.G.L. Vann, IEEE Transactions on Antennas and Propagation, 60 5442 (2012);  http://dx.doi.org/10.1109/TAP.2012.2207936

“Two dimensional studies of electron Bernstein wave emission in MAST”, V.F. Shevchenko et al, Fusion Science and Technology, 59 663 (2011); http://dx.doi.org/10.13182/FST10-137

 “FPGA-based embedded Linux technology in fusion: The MAST microwave imaging system”,B.K. Huang , R.G.L. Vann, S. Freethy,  R.M. Myers, G. Naylor, R.M. Sharples, V.F. Shevchenko, Fusion Engineering and Design , 87 2106 (2011); http://dx.doi.org/10.1016/j.fusengdes.2012.06.004

 “L-H transition and pedestal studies on MAST”, H. Meyer et al., Nuclear Fusion, 51 113011 (2011); http://dx.doi.org/10.1088/0029-5515/51/11/113011

 “Electron kinetics inferred from observations of microwave bursts during edge localised modes in the Mega-Amp Spherical Tokamak”, S.J. Freethy et al, Proceedings of 42nd European Physical Society Conference on Plasma Physics, EPS link

“Bottling a star using ARMs AXIBus in an FPGA”, B K Huang, R G L Vann, V F Shevchenko, S J Freethy, Xcellence in scientific applications, 76 (2011), XCell link

“2D EBW emission studies on MAST”, V F Shevchenko et al., Proceedings of 16th EC Joint Workshop, 2010

“Recent progress with the MAST synthetic aperture imaging radiometer”, S J Freethy V F Shevchenko, R G L Vann, Proceedings of 38th European Physical Society Conference on Plasma Physics