Abstract
A high time resolution (HTR) electron detector has been developed for use in sounding rocket studies of the aurora. The detector is used to look for particle bunching in the range 50 kHz–10MHz. The design uses a Johnston Laboratory MM-1 electron multiplier and an onboard frequency spectrum analyzer. By using the onboard analyzer, the data can be transmitted back to ground on a single 93 kHz voltage-controlled oscillator. The detector covers the 50 kHz–10 MHz range six times per second and detects modulation on the order of a few percent of the total electron flux. Spectra are presented for a flight over an auroral arc.
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