A portable X-pinch design for x-ray diagnostics of warm dense matter
作者机构：Plasma Physics GroupImperial College LondonLondon SW72BWUnited Kingdom University of CambridgeCambridgeUnited Kingdom Department of NuclearPlasmaand Radiological EngineeringUniversity of Illinois at Urbana-ChampaignUrbanaIllinois 61801USA Lebedev Physical InstituteRussian Academy of SciencesMoscow 119991Russia
出 版 物：《Matter and Radiation at Extremes》 (极端条件下的物质与辐射（英文）)
年 卷 期：2022年第7卷第1期
页 面：53-63页
核心收录：
学科分类：070207[理学-光学] 07[理学] 08[工学] 0803[工学-光学工程] 0702[理学-物理学]
基 金：Parts of the research detailed were funded by First Light Fusion Ltd.,the U.K.EPSRC the U.S.Department of Energy under Cooperative Agreement Nos.DE-NA0003764 and DE-SC0018088
主 题：energy diagnostics pinch
摘 要：We describe the design and x-ray emission properties(temporal,spatial,and spectral)of Dry Pinch I,a portable X-pinch driver developed at Imperial College *** Pinch I is a direct capacitor discharge device,30033003700 mm3 in size and∼50 kg in mass,that can be used as an external driver for x-ray diagnostics in high-energy-density physics *** key findings,the device is shown to reliably produce 1.1±0.3 ns long x-ray bursts that couple∼50 mJ of energy into photon energies from 1 to 10 *** average shot-to-shot jitter of these bursts is found to be 10±4.6 ns using a combination of x-ray and current *** spatial extent of the x-ray hot spot from which the radiation emanates agrees with previously published results for X-pinches-suggesting a spot size of 10±6μm in the soft energy region(1–10 keV)and 190±100μm in the hard energy region(10 keV).These characteristics mean that Dry Pinch I is ideally suited for use as a probe in experiments driven in the laboratory or at external facilities when more conventional sources of probing radiation are not *** the same time,this is also the first detailed investigation of an X-pinch operating reliably at current rise rates of less than 1 kA/ns.
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