Experimental investigation on particle size and launch angle distribution of lofted dust particles by electrostatic forces

Örger, Necmi Cihan; Toyoda, Kazuhiro; Masui, Hirokazu; Cho, Mengu

doi:10.1016/j.asr.2021.03.037

Cited by 11 publications

(2 citation statements)

References 45 publications

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“…However, all of their experiments, Wang et al (2016) and Orger et al (2021), do not seem to have exactly simulated the environment of the LHG nor provided evidence that is consistent with observational results of the LHG. Their experiments have only ever been performed in moderate vacuum conditions of 10 -4 Pa or 4 × 10 -3 Pa and with the use of hydrophilic silicate particles that are not ablated.…”

Section: Appendix D the Charge Patch Model And Effect Of Cohesionmentioning

confidence: 89%

Dust release from cold ring particles as a mechanism of spoke formation in Saturn's rings

Hirata¹,

Kimura²,

Ohtsuki³

2022

Icarus

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Section: Appendix D the Charge Patch Model And Effect Of Cohesionmentioning

confidence: 89%

Dust release from cold ring particles as a mechanism of spoke formation in Saturn's rings

Hirata¹,

Kimura²,

Ohtsuki³

2022

Icarus

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“…Recently, the recognition of the roles micro-cavities play in surface charging led to a better understanding of particle liftoff from surfaces due to plasma effects, the so-called patched charge model [59]. The model, verified by a series of experiments (figure 4) [60][61][62][63][64][65][66], is based on the emission and re-absorption of secondary electrons, generated by impacting energetic ( 1 eV) electrons, ions or UV photons. As opposed to the case of a flat surface, secondary electrons can remain trapped in cavities that form between dust particles, generating a potential difference of the order of 2-3 V, due to the typical energy of secondary electrons.…”

Section: Near-surface Dust Mobilizationmentioning

confidence: 99%

The lunar dust environment: concerns for Moon-based astronomy

Horányi,

Szalay,

Wang

2024

Phil. Trans. R. Soc. A.

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The Moon has no atmosphere, hence, it offers a unique opportunity to place telescopes on its surface for astronomical observations. It is phase-locked with Earth, and its far side remains free from ground-based interference, enabling the optimal use of radio telescopes. However, the surface of the Moon, as any other airless planetary object in the solar system, is continually bombarded by interplanetary dust particles that cause impact damage and generate secondary ejecta particles that continually overturn the top layer of the lunar regolith. In addition, there is evidence, that small particles comprising the lunar regolith can be electrically charged, mobilized and transported, also representing a hazard for covering sensitive surfaces and interfering with exposed mechanical structures. In addition to the naturally occurring dust transport, rocket firings during landings and take-offs, pedestrian and motorized vehicle traffic will also liberate copious amounts of dust, representing a potential hazard for the safe and optimal use of optical platforms. This article is part of a discussion meeting issue ‘Astronomy from the Moon: the next decades (part 2)’.

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