Joel Sercel | California Institute of Technology (original) (raw)

Joel Sercel

Aerospace engineer and entrepreneur.

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Research paper thumbnail of Computational Modeling of Heat Transport and Volatile Extraction from Asteroid Materials

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Research paper thumbnail of Electron-cyclotron-resonance (ECR) plasma thruster research

24th Joint Propulsion Conference, Jul 11, 1988

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Research paper thumbnail of Magnetic Lens For Plasma Engine

NASA Tech Briefs, Jul 1, 1992

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Research paper thumbnail of The Vista Spacecraft-Advantages of Icf for , Nterplanetary Fusion Propulsion Applications

A major purpose of the Technical Information Center is to provide the broadest dissemination poss... more A major purpose of the Technical Information Center is to provide the broadest dissemination possible of information contained in DOE'S Research and Development Reports to business, industry, the academic community, and federal, state and local governments. Although portions of this report are not reproducib!e,

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Research paper thumbnail of In-Space Utilisation of Asteroids:: “Answers to Questions from the Asteroid Miners”

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Research paper thumbnail of Asteroid Redirect Mission (ARM) Formulation Assessment and Support Team (FAST) Final Report

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Research paper thumbnail of Experimental studies of an ECR plasma thruster

The Electron Cyclotron Resonance (ECR) thruster is a proposed electrodeless space electric propul... more The Electron Cyclotron Resonance (ECR) thruster is a proposed electrodeless space electric propulsion device with interesting and little understood physics. A laboratory ECR thruster was run in a vacuum tank at pressures in the 10 exp -5 torr range using 2.12 GHz microwave beam and Ar gas propellant. Movable diagnostic probes (a Faraday cup and a gridded energy analyzer) measured plasma characteristics as propellant gas flow rate and input microwave power level were varied. Ion energy and flux data were used to calculate I(sp), propulsive efficiency, and thrust. The ion flux profiles show an unexpected depression on the thruster axis for low tank pressures that disappears as the tank pressure increases. Ion energies decrease as the flow rate and pressure increase, but the microwave power level affects the energy only negligibly. The calculated propulsion parameters demonstrate that the efficiency of the laboratory device is low, and that tank pressure greatly changes the performance.

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Research paper thumbnail of Electron-cyclotron-resonance (ECR) plasma acceleration

19th AIAA, Fluid Dynamics, Plasma Dynamics, and Lasers Conference, Jun 8, 1987

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Research paper thumbnail of abstract) A Solar Electric Propulsion Mission to the Moon and Beyond

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Research paper thumbnail of In-Space Fabrication and Growth of Affordable Large Interior Rotating Habitats

ASCEND 2020, Nov 2, 2020

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Research paper thumbnail of Deliverable water from small NEOs to DRLO

AAS/Division for Planetary Sciences Meeting Abstracts #47, Nov 1, 2015

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Research paper thumbnail of Thousand Astronomical Unit Voyage: A Deep Space Mission

Bulletin of the American Astronomical Society, Sep 1, 1986

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Research paper thumbnail of ECR plasma thruster research - Preliminary theory and experiments

25th Joint Propulsion Conference, Jul 12, 1989

ABSTRACT

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Research paper thumbnail of An experimental and theoretical study of the ECR plasma engine

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Research paper thumbnail of Simple model of plasma acceleration in a magnetic nozzle

21st International Electric Propulsion Conference, Jul 18, 1990

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Research paper thumbnail of Icemaker/sup TM/: an excel-based environment for collaborative design

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Research paper thumbnail of Optimized continuous-thrust round-trip trajectories to ultra-low Δv ISRU targets

Planetary and Space Science, Feb 1, 2022

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Research paper thumbnail of Sutter Survey: Telescope Breakthrough Enables MicroSats to Map Accessible NEOs

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Research paper thumbnail of Solar Thermal Rocket Propulsion

Paper analyzes potential of solar thermal rockets as means of propulsion for planetary spacecraft... more Paper analyzes potential of solar thermal rockets as means of propulsion for planetary spacecraft. Solar thermal rocket uses concentrated Sunlight to heat working fluid expelled through nozzle to produce thrust.

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Research paper thumbnail of Maximizing the Scientific Return of Low Cost Planetary Missions Using Solar Electric Propulsion(abstract)

AAS/Division for Planetary Sciences Meeting Abstracts #26, 1994

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Research paper thumbnail of Computational Modeling of Heat Transport and Volatile Extraction from Asteroid Materials

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Electron-cyclotron-resonance (ECR) plasma thruster research

24th Joint Propulsion Conference, Jul 11, 1988

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Magnetic Lens For Plasma Engine

NASA Tech Briefs, Jul 1, 1992

Bookmarks Related papers MentionsView impact

Research paper thumbnail of The Vista Spacecraft-Advantages of Icf for , Nterplanetary Fusion Propulsion Applications

A major purpose of the Technical Information Center is to provide the broadest dissemination poss... more A major purpose of the Technical Information Center is to provide the broadest dissemination possible of information contained in DOE'S Research and Development Reports to business, industry, the academic community, and federal, state and local governments. Although portions of this report are not reproducib!e,

Bookmarks Related papers MentionsView impact

Research paper thumbnail of In-Space Utilisation of Asteroids:: “Answers to Questions from the Asteroid Miners”

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Asteroid Redirect Mission (ARM) Formulation Assessment and Support Team (FAST) Final Report

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Experimental studies of an ECR plasma thruster

The Electron Cyclotron Resonance (ECR) thruster is a proposed electrodeless space electric propul... more The Electron Cyclotron Resonance (ECR) thruster is a proposed electrodeless space electric propulsion device with interesting and little understood physics. A laboratory ECR thruster was run in a vacuum tank at pressures in the 10 exp -5 torr range using 2.12 GHz microwave beam and Ar gas propellant. Movable diagnostic probes (a Faraday cup and a gridded energy analyzer) measured plasma characteristics as propellant gas flow rate and input microwave power level were varied. Ion energy and flux data were used to calculate I(sp), propulsive efficiency, and thrust. The ion flux profiles show an unexpected depression on the thruster axis for low tank pressures that disappears as the tank pressure increases. Ion energies decrease as the flow rate and pressure increase, but the microwave power level affects the energy only negligibly. The calculated propulsion parameters demonstrate that the efficiency of the laboratory device is low, and that tank pressure greatly changes the performance.

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Electron-cyclotron-resonance (ECR) plasma acceleration

19th AIAA, Fluid Dynamics, Plasma Dynamics, and Lasers Conference, Jun 8, 1987

Bookmarks Related papers MentionsView impact

Research paper thumbnail of abstract) A Solar Electric Propulsion Mission to the Moon and Beyond

Bookmarks Related papers MentionsView impact

Research paper thumbnail of In-Space Fabrication and Growth of Affordable Large Interior Rotating Habitats

ASCEND 2020, Nov 2, 2020

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Deliverable water from small NEOs to DRLO

AAS/Division for Planetary Sciences Meeting Abstracts #47, Nov 1, 2015

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Thousand Astronomical Unit Voyage: A Deep Space Mission

Bulletin of the American Astronomical Society, Sep 1, 1986

Bookmarks Related papers MentionsView impact

Research paper thumbnail of ECR plasma thruster research - Preliminary theory and experiments

25th Joint Propulsion Conference, Jul 12, 1989

ABSTRACT

Bookmarks Related papers MentionsView impact

Research paper thumbnail of An experimental and theoretical study of the ECR plasma engine

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Simple model of plasma acceleration in a magnetic nozzle

21st International Electric Propulsion Conference, Jul 18, 1990

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Icemaker/sup TM/: an excel-based environment for collaborative design

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Optimized continuous-thrust round-trip trajectories to ultra-low Δv ISRU targets

Planetary and Space Science, Feb 1, 2022

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Sutter Survey: Telescope Breakthrough Enables MicroSats to Map Accessible NEOs

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Solar Thermal Rocket Propulsion

Paper analyzes potential of solar thermal rockets as means of propulsion for planetary spacecraft... more Paper analyzes potential of solar thermal rockets as means of propulsion for planetary spacecraft. Solar thermal rocket uses concentrated Sunlight to heat working fluid expelled through nozzle to produce thrust.

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Maximizing the Scientific Return of Low Cost Planetary Missions Using Solar Electric Propulsion(abstract)

AAS/Division for Planetary Sciences Meeting Abstracts #26, 1994

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