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Far Field Plume Distribution and Divergence for NEXT: DART Mission (2019)

Crofton, M. W. ; Arther, N. ; John, J. W. ; [et al.]

In: CASI

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Publication Date: 2019-07-13

Description: In support of the Double Asteroid Redirection Test (DART) mission, laboratory measurements were made on the NEXT ion engine, which will be used for the spacecraft's in-space propulsion [1]. This study revisits a small range of mission-specific 2.7A throttle levels to understand the effect of in-flight flow rate variability, investigate intermediate throttle conditions, and improve measurement methodology. This paper specifically examines the far-field plume divergence and backflow ion flux distribution of the NEXT, while a companion paper examines the charge state distributions.

Keywords: Spacecraft Propulsion and Power

Type: GRC-E-DAA-TN63682 , AIAA Science and Technology Forum and Exposition (SciTech); Jan 07, 2019 - Jan 11, 2019; San Diego, CA; United States

Format: application/pdf

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