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dc.contributor.authorRaman, R.-
dc.contributor.authorLay, W.-S.-
dc.contributor.authorJarboe, T.R.-
dc.contributor.authorMenard, J.E.-
dc.contributor.authorOno, M.-
dc.description.abstractA novel, rapid time-response, disruption mitigation system referred to as the Electromagnetic Particle Injector (EPI) is described. This method can accurately deliver the radiative payload to the plasma center on a <10 ms time scale, much faster, and deeper, than what can be achieved using conventional methods. The EPI system accelerates a sabot electromagnetically. The sabot is a metallic capsule that can be accelerated to desired velocities by an electromagnetic impeller. At the end of its acceleration, within 2 ms, the sabot will release a radiative payload, which is composed of low-z granules, or a shell pellet containing smaller pellets. The primary advantage of the EPI concept over gas propelled systems is its potential to meet short warning time scales, while accurately delivering the required particle size and materials at the velocities needed for achieving the required penetration depth in high power ITER-scale discharges for thermal and runaway current disruption mitigation. The present experimental tests from a prototype system have demonstrated the acceleration of a 3.2 g sabot to over 150 m/s within 1.5 ms, consistent with the calculations, giving some degree of confidence that larger ITER-scale injector can be developed.en_US
dc.description.tableofcontentsreadme and digital data filesen_US
dc.publisherPrinceton Plasma Physics Laboratory, Princeton Universityen_US
dc.relationNuclear Fusion (November 2018)en_US
dc.subjectFast time responseen_US
dc.subjectHigh velocityen_US
dc.titleElectromagnetic Particle Injector for Fast Time Response Disruption Mitigation in Tokamaksen_US
pu.projectgrantnumber31016 G0001 10003086 101-
pu.depositorKaye, Stanley-
dc.contributor.funderU. S. Department of Energy contract number DE-AC02-09CH11466en_US
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