Experimental Demonstration of Plasma-Drag Acceleration of a Dust Cloud to Hypervelocities

Ticoş, C. M.; Wang, ‪Zhehui; Wurden, G. A.; Kline, J. L.; Montgomery, D. S.; Dorf, L.; Shukła, P. K.

doi:10.1103/physrevlett.100.155002

Cited by 33 publications

(18 citation statements)

References 32 publications

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“…Experiments have confirmed that the ion drag force can propel the dust particles and accelerates them to speeds up to a few km/s. 10,24,26 The ion drag force is proportional with the plasma density and its flow speed. Our proposed dust removal technique is based on the drag force exerted by the plasma flow at a reduced pressure.…”

Section: Resultsmentioning

confidence: 99%

“…Initially a) catalin.ticos@inflpr.ro proposed for confining and focusing the plasma in order to obtain fusion-like conditions, 8 the coaxial gun has found some utility in topics connected to fusion research such as fueling of tokamaks, 9 dust acceleration to hypervelocity, 10 and merging of plasma jets. 11 Other applications are in material science studies for ion implantation on surfaces 12 or in fundamental plasma dynamics studies.…”

Section: Introductionmentioning

confidence: 99%

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Experimental demonstration of Martian soil simulant removal from a surface using a pulsed plasma jet

Ticoş

Scurtu

Toader

et al. 2015

Review of Scientific Instruments

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A plasma jet produced in a small coaxial plasma gun operated at voltages up to 2 kV and working in pure carbon dioxide (CO2) at a few Torr is used to remove Martian soil simulant from a surface. A capacitor with 0.5 mF is charged up from a high voltage source and supplies the power to the coaxial electrodes. The muzzle of the coaxial plasma gun is placed at a few millimeters near the dusty surface and the jet is fired parallel with the surface. Removal of dust is imaged in real time with a high speed camera. Mars regolith simulant JSC-Mars-1A with particle sizes up to 5 mm is used on different types of surfaces made of aluminium, cotton fabric, polyethylene, cardboard, and phenolic.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Experimental demonstration of Martian soil simulant removal from a surface using a pulsed plasma jet

Ticoş

Scurtu

Toader

et al. 2015

Review of Scientific Instruments

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“…Starkbroadening measurement did show that dense plasmas of 10 22 m −3 density has been created. 37 Downstream in the FMP chamber provided more room for diagnostics. In Fig.…”

Section: B Results From the Type II Experimentsmentioning

confidence: 99%

Dust trajectories and diagnostic applications beyond strongly coupled dusty plasmas

2007

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Plasma interaction with dust is of growing interest for a number of reasons. On the one hand, dusty plasma research has become one of the most vibrant branches of plasma science. On the other hand, substantially less is known about dust dynamics outside the laboratory strongly coupled dusty-plasma regime, which typically corresponds to 1015m−3 electron density with ions at room temperature. Dust dynamics is also important to magnetic fusion because of concerns about safety and potential dust contamination of the fusion core. Dust trajectories are measured under two plasma conditions, both of which have larger densities and hotter ions than in typical dusty plasmas. Plasma-flow drag force, dominating over other forces in flowing plasmas, can explain the dust motion. In addition, quantitative understanding of dust trajectories is the basis for diagnostic applications using dust. Observation of hypervelocity dust in laboratory enables dust as diagnostic tool (hypervelocity dust injection) in magnetic fusion. In colder plasmas (∼10eV or less), dust with known physical and chemical properties can be used as microparticle tracers to measure both the magnitude and directions of flows in plasmas with good spatial resolution as the microparticle tracer velocimetry.

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“…Details about many applications of dust injection can be found in the literature [3][4][5]. We summarize the required velocities and dust sizes for some of the fusion-energy results in Fig.…”

Section: Three Regimes Of Dust Injection For Fusion Energymentioning

confidence: 99%

Applications and Progress of Dust Injection to Fusion Energy

Wang¹,

Mansfield

Roquemore

et al. 2008

AIP Conference Proceedings

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Articles you may be interested inThe effect of dust charge fluctuations on collisional drift waves in a magnetized plasma cylinder Phys.Abstract. Three regimes of dust injection are proposed for different applications to fusion energy. In the 'low-speed regime (< 5 km/s), basic dust transport study, edge plasma diagnostics, edge-localized-mode (ELM) pacing in magnetic fusion devices can be realized by injecting dust of known properties into today's fusion experiments. ELM pacing, as an alternative to mini-pellet injection, is a promising scheme to prevent disruptions and type I ELM's that can cause catastrophic damage to fusion devices. Different schemes are available to inject dust. In the 'intermediate-speed' regime (10 -200 km/s), possible applications of dust injection include fueling of the next-step fusion devices, core-diagnostics of the next-step fusion devices, and compression of plasma and solid targets to aid fusion energy production. Promising laboratory results of dust moving at 10-50 km/s do exist. Significant advance in this regime may be expected in the near term to achieve higher dust speeds. In the 'high-speed regime (> 500 km/s), dust injection can potentially be used to directly produce fusion energy through impact. Ideas on how to achieve these extremely high speeds are mostly on paper. No plan exists today to realize them in laboratory. Some experimental results, including electrostatic, electromagnetic, gas-dragged, plasma-dragged, and laser-ablation-based acceleration, are summarized and compared. Some features and limitations of the different acceleration methods will be discussed. A necessary component of all dust injectors is the dust dropper (also known as dust dispenser). A computer-controlled piezoelectric crystals has been developed to dropped dust in a systematic and reproducible manner. Particle fluxes ranges from a few tens of particles per second up to thousands of particles per second by this simple device.

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Experimental Demonstration of Plasma-Drag Acceleration of a Dust Cloud to Hypervelocities

Cited by 33 publications

References 32 publications

Experimental demonstration of Martian soil simulant removal from a surface using a pulsed plasma jet

Experimental demonstration of Martian soil simulant removal from a surface using a pulsed plasma jet

Dust trajectories and diagnostic applications beyond strongly coupled dusty plasmas

Applications and Progress of Dust Injection to Fusion Energy

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