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6篇 您的检索式:作者名="A.Rigby"
    题名 作者 年代 出处 被引量
1Short-pulse laser-driven x-ray radiography显示文摘We have developed a new radiography setup with a short-pulse laser-driven x-ray source. Using a radiography axis perpendicular to both long- and short-pulse lasers allowed optimizing the incident angle of the short-pulse laser on the x-ray source target. The setup has been tested with various x-ray source target materials and different laser wavelengths.Signal to noise ratios are presented as well as achieved spatial resolutions. The high quality of our technique is illustrated on a plasma flow radiograph obtained during a laboratory astrophysics experiment on POLARs.E.Brambrink S.Baton M.Koenig R.Yurchak N.Bidaut B.Albertazzi J.E.Cross G.Gregori A.Rigby E.Falize A.Pelka F.Kroll S.Pikuz Y.Sakawa N.Ozaki C.Kuranz M.Manuel C.Li P.Tzeferacos D.Lamb 2016High Power Laser Science and Engineering2016,4,3:3
2Smooth centile curves for skew and kurtotic data modelled using the Box–Cox power exponential distribution显示文摘Robert A.Rigby D. MikisStasinopoulos 2004Statist Med2004,,19:1
3Generalized additive models for location, scale and shape显示文摘R. A.Rigby D. M.Stasinopoulos 2005Journal of the Royal Statistical Society: Series C (Applied Statistics)2005,,3:1
4Generalized additive models for location, scale and shape显示文摘R. A.Rigby D. M.Stasinopoulos 2005Journal of the Royal Statistical Society: Series C (Applied Statistics)2005,,3:1
5Implementation of a Faraday rotation diagnostic at the OMEGA laser facility显示文摘Magnetic field measurements in turbulent plasmas are often difficult to perform. Here we show that for kG magnetic fields, a time-resolved Faraday rotation measurement can be made at the OMEGA laser facility. This diagnostic has been implemented using the Thomson scattering probe beam and the resultant path-integrated magnetic field has been compared with that of proton radiography. Accurate measurement of magnetic fields is essential for satisfying the scientific goals of many current laser–plasma experiments.A.Rigby J.Katz A.F.A.Bott T.G.White P.Tzeferacos D.Q.Lamb D.H.Froula G.Gregori 2018High Power Laser Science and Engineering2018,6,3:0
6Maser radiation from collisionless shocks: application to astrophysical jets显示文摘This paper describes a model of electron energization and cyclotron-maser emission applicable to astrophysical magnetized collisionless shocks. It is motivated by the work of Begelman, Ergun and Rees [Astrophys. J. 625, 51(2005)] who argued that the cyclotron-maser instability occurs in localized magnetized collisionless shocks such as those expected in blazar jets. We report on recent research carried out to investigate electron acceleration at collisionless shocks and maser radiation associated with the accelerated electrons. We describe how electrons accelerated by lower-hybrid waves at collisionless shocks generate cyclotron-maser radiation when the accelerated electrons move into regions of stronger magnetic fields. The electrons are accelerated along the magnetic field and magnetically compressed leading to the formation of an electron velocity distribution having a horseshoe shape due to conservation of the electron magnetic moment. Under certain conditions the horseshoe electron velocity distribution function is unstable to the cyclotron-maser instability [Bingham and Cairns, Phys. Plasmas 7, 3089(2000); Melrose, Rev. Mod. Plasma Phys. 1, 5(2017)].D.C.Speirs K.Ronald A.D.R.Phelps M.E.Koepke R.A.Cairns A.Rigby F.Cruz R.M.G.M.Trines R.Bamford B.J.Kellett B.Albertazzi J.E.Cross F.Fraschetti P.Graham P.M.Kozlowski Y.Kuramitsu F.Miniati T.Morita M.Oliver B.Reville Y.Sakawa S.Sarkar C.Spindloe M.Koenig L.O.Silva D.Q.Lamb P.Tzeferacos S.Lebedev G.Gregori R.Bingham 2019High Power Laser Science and Engineering2019,7,1:0
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