Mitigation of disruption electro-magnetic load with SPI on JET

Mitigation of disruption electro-magnetic load with SPI on JET

Mitigation of disruption electro-magnetic load with SPI on JET 150 150 UKAEA Opendata

In 2019, the JET-ILW was equipped with a Shattered Pellet Injector (SPI) system with a wide capability to allow studies on the efficacy of shattered pellets in reducing the electro-magnetic and the thermal loads during disruptions and the avoidance/suppression of the formation of runaway electrons. The fully commissioned system became operational in July 2019. The JET-ILW SPI can fire pellets with a diameter of d = [4.57, 8.1, 12.5] mm and pellet compositions of D2, Ne with D2 shell, Ne+D2 mixture, Ar and Ar + D2 sandwich pellets. The pellets are released by means of propellant gas or a mechanical punch.

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