Search Results - "Chang Díaz, Franklin"

Solar electric propulsion for human mars missions by Chang Díaz, Franklin, Carr, John, Johnson, Les, Johnson, William, Genta, Giancarlo, Maffione, P. Federica

“…While solar electric propulsion (SEP) is being widely considered for cargo transport to Mars, its value for propelling fast human missions is often viewed as…”
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Estimation of erosion phenomena within helicon plasma sources through a steady-state explicit analytical model by Del Valle , Juan I., Granados , Víctor H., Chang Díaz, Franklin R.

“…Helicon plasma sources produce high-density discharges without the need of electrodes in direct contact with the plasma, which is thought to provide them with…”
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A review of the processing, composition, and temperature-dependent mechanical and thermal properties of dielectric technical ceramics by de Faoite, Daithí, Browne, David J., Chang-Díaz, Franklin R., Stanton, Kenneth T.

“…The current review uses the material requirements of a new space propulsion device, the Variable Specific Impulse Magnetoplasma Rocket (VASIMR ® ) as a basis…”
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Heat flux estimation of a plasma rocket helicon source by solution of the inverse heat conduction problem by Mulcahy, James M., Browne, David J., Stanton, Kenneth T., Chang Diaz, Franklin R., Cassady, Leonard D., Berisford, Daniel F., Bengtson, Roger D.

“…A solution of the inverse heat conduction problem (IHCP) by the steepest descent method is carried out in order to determine the waste heat flux from a helicon…”
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High power light gas helicon plasma source for VASIMR by Squire, Jared P., Chang-Díaz, Franklin R., Glover, Timothy W., Jacobson, Verlin T., McCaskill, Greg E., Winter, D. Scott, Baity, F. Wally, Carter, Mark D., Goulding, Richard H.

“…In the Advanced Space Propulsion Laboratory (ASPL) helicon experiment (VX-10) we have measured a plasma flux to input gas rate ratio near 100% for both helium…”
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Investigation of Plasma Detachment From a Magnetic Nozzle in the Plume of the VX-200 Magnetoplasma Thruster by Olsen, Christopher S., Ballenger, Maxwell G., Carter, Mark D., Chang Diaz, Franklin R., Giambusso, Matthew, Glover, Timothy W., Ilin, Andrew V., Squire, Jared P., Longmier, Benjamin W., Bering, Edgar A., Cloutier, Paul A.

“…Understanding the physics involved in plasma detachment from magnetic nozzles is well theorized, but lacking in large scale experimental support. We have…”
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Plasma-Surface Interactions Within Helicon Plasma Sources by Del Valle, Juan I., Chang Diaz, Franklin R., Granados, Víctor H.

“…Helicon plasma sources do not require electrodes or grids directly immersed in the plasma, and also present an axial magnetic field confining the plasma…”
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Plasma propulsion for interplanetary flight by Chang-Díaz, Franklin R.

“…The Variable Specific Impulse Magnetoplasma Rocket (VASIMR) is a high-power propulsion concept using radio waves to create and accelerate plasma in a magnetic…”
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Test of a miniature double-focusing mass spectrometer for real-time plasma monitoring by Diaz, Jorge Andres, Vargas, Andres E.Mora, Diaz, Franklin Chang, Squire, Jared P, Jacobson, Verlin, McCaskill, Greg, Rohrs, Henry, Chhatwal, Rajiv

“…A miniature double-focusing mass spectrometer with an 8 mm radius was tested at the Advanced Space Propulsion Laboratory (ASPL) at NASA Johnson Space Center…”
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Improved simulation of the ICRF waves in the VASIMR plasma by Ilin, Andrew V., Chang Díaz, Franklin R., Squire, Jared P., Tarditi, Alfonso G., Carter, Mark D.

“…This paper describes the recent developments in the modeling of the ICRF heating process in the VASIMR plasma using the EMIR code. The latest upgrade of the…”
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The Vasimr Rocket by Chang Diaz, Franklin R

“…New rocket technology is discussed. Present rockets rely on propellants and fuels that occupy the majority of the ship's bulk, but the Variable Specific…”
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Plasma propulsion for interplanetary flight by CHANG-DIAZ, Franklin R

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Adiabatic plasma expansion in a magnetic nozzle by Sheehan, J. P., Longmier, Benjamin W., Bering, Edgar A., Olsen, Christopher S., Squire, Jared P., Carter, Mark D., Cassady, Leonard D., Chang Diaz, Franklin R., Glover, Tim W., Hin, Andrew V., Ballenger, Maxwell G.

“…Summary form only given. A mechanism for ambipolar ion acceleration in a magnetic nozzle is proposed. The plasma is adiabatic in the diverging section of a…”
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The Commercialization of Space: The Final Frontier by Franklin Chang Díaz, as told to Katy Vine

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High power light gas helicon plasma source for VASIMR by SQUIRE, Jared P, CHANG-DIAZ, Franklin R, GLOVER, Timothy W, JACOBSON, Verlin T, MCCASKILL, Greg E, SCOTT WINTER, D, WALLY BAITY, F, CARTER, Mark D, GOULDING, Richard H

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The Vasimr Rocket: There used to be two types of rocket: powerful but fuel-guzzling, or efficient but weak. Now there is a third option that combines the advantages of both by Franklin R. Chang Díaz

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