The ion-composition of the plasma produced by impacts of fast dust particles
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Cited by (51)
A cosmic dust detection suite for the deep space Gateway
2021, Advances in Space ResearchCitation Excerpt :At low impact speeds there is surface ionization, whereas at higher speeds there is complete volume ionisation. There are also velocity thresholds for partial or full ionization of different elemental species, and this is illustrated for example by Dahlmann et al., 1977, or Ratcliff et al., 1997a; 1997b. A step forward in understanding this was the wide-spread adoption of the use of non-metal projectiles in laboratory impact experiments (the particles are accelerated electrostatically, so are coated with thin overlayers of either metal or conducting polymers).
Trajectory measurements for individual dust particles on the colorado dust accelerator
2018, Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated EquipmentCitation Excerpt :Micrometeorite impacts by interstellar dust on the sub-micrometer to micrometer size scale, whether on the surface of an airless body or space-borne instruments, are useful phenomena for extracting information on a particle’s characteristics (e.g. chemical composition, size, and trajectory) as well as on the environment in which it is found (e.g. dust flux) [1]. Dust particles in space typically impact at hypervelocities leading to a plasma produced by the ionization of both the impactor and the impact surface material [2]. Space-borne instruments based on some form of impact target use impact ionization for in situ measurements.
Impact ionisation mass spectrometry of platinum-coated olivine and magnesite-dominated cosmic dust analogues
2018, Planetary and Space ScienceDetection of meteoric smoke particles in the mesosphere by a rocket-borne mass spectrometer
2014, Journal of Atmospheric and Solar-Terrestrial PhysicsCitation Excerpt :A possible source of spurious signals is secondary charge generation analogous to that seen from the impact of the icy NLC particles that can be tens of nanometers in radius (Havnes and Næsheim, 2007; Kassa et al., 2012). However, laboratory experiments with accelerators for nanometer-scale particles with compositions similar to MSPs have shown the absence of charge generation for these smaller particles moving at velocities typical of sounding rockets (Dalmann et al., 1977). The payloads carried four Colorado Dust Detectors (CDD) (Robertson et al., 2004; Amyx et al., 2008) spaced 90° apart around the periphery of the forward bulkhead, Fig. 1.
On the application of a linear time-of-flight mass spectrometer for the investigation of hypervelocity impacts of micron and sub-micron sized dust particles
2013, Planetary and Space ScienceCitation Excerpt :The generated charge signals are then amplified and recorded. With suitable charge detectors and instrument geometry, impact ionization sensors can act as highly sensitive time-of-flight (TOF) mass spectrometers (Dalmann et al., 1977). The advantages of such detectors are their simplicity and the possibility of simultaneous measurements of the dynamical properties of the particle and its chemical composition, as well as the reduction of noise because of coincidence detection.
Application and calibration of a simple position detector for a dust accelerator
2013, Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment