WEBVTT

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It's the Jupiter Energetic Particle Detector Instrument,

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and the acronym doesn't quite work out properly,

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but somebody loved the word JEDI,

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for obvious reasons.

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We affectionately call our instrument the hockey puck,

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because the main sensor

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is about the size and shape of a hockey puck disc.

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That hockey puck is sort of glued on or attached to a box

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which holds all of the electronics associated with the sensor.

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JADE in particular works in very close coordination with JEDI.

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So JADE is measuring the lower energy part of the charged particles

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that are in Jupiter's environment.

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JEDI measures the higher energy particles.

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Those particles then go through

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the instrument and strike what's called a micro-channel plate sensor.

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And a micro-channel plate sensor amplifies the signal

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so that you get a current out the back end

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and modern electronics can measure electric currents.

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We measure the radiation belts around planets

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all the strongly magnetized planets have radiation belts.

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Jupiter has the most intense and interesting radiation belts.

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It's a rotationally dominated space environment or magnetosphere,

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where Earth is a solar wind-driven space environment.

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By studying two different environments that are powered by different things,

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you can begin to isolate the physical processes that are causing these variations.

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We hope to make discoveries there.