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Journal Publications

  1. Xu, K., Walker, M. L. R., “High-Power, Null-Type, Inverted Pendulum Thrust Stand,” Review of Scientific Instruments, August, 2007. – In Progress
     
  2. Yano, M., Walker, M. L. R., “Design of an Annular Helicon Plasma Source,” Journal of Propulsion of Power, August 17, 2007. – In Review
     
  3. Walker, M. L. R., Gallimore, A. D., “Hall Thruster Cluster Operation with a Shared Cathode,” Journal of Propulsion and Power, Volume 23, Number 3, May 2007, pp. 528-536.
     
  4. Yano, M., Walker, M. L. R., “Generalized Theory of Annularly-Bounded Helicon Waves,” Physics of Plasmas, Volume 14, Number 3, March 2007, pp. 033510 1-7.
     
  5. Walker, M. L. R., Gallimore, A. D., “Performance Characteristics of a Cluster of 5-kW Laboratory Hall Thrusters,” Journal of Propulsion and Power, Volume 23, Number 1, January 2007, pp. 35-43.
     
  6. Yano, M., Walker, M. L. R., “Plasma Ionization by Annularly-Bounded Helicon Waves,” Physics of Plasma, Volume 13, Number 6, June 2006, pp. 063501 1-5.
     
  7. Rovey, J. L., Walker, M. L. R., Peterson, P. Y., Gallimore, A. D., “A Magnetically-Filtered Faraday Probe for Measuring the Ion Current Density Profile of a Hall Thruster,” Review of Scientific Instruments, Volume 77, Number 1, January 2006, pp. 013503 1-8.
     
  8. Walker, M. L. R., Hofer, R. R., Gallimore, A. D., "Ion Collection in Hall Thruster Plumes," Journal of Propulsion and Power, Volume 22, Number 1, Jan.-Feb., 2006, pp. 205-209.
     
  9. Walker, M. L. R., Victor, A. L., Hofer, R. R., Gallimore, A. D., "Effect of  Backpressure on Ion Current Density Measurements in Hall Thruster Plumes," Journal of Propulsion and Power, Volume 21, Number 3, May-June, 2005, pp. 408-415.
     
  10. Walker, M. L. R., Gallimore, A. D., "Neutral Density Map of Hall Thruster Plume Expansion in a Vacuum Chamber," Review of Scientific Instruments, Volume 76, Number 5, May 2005, pp. 053509 1-10.
     
  11. Walker, M. L. R., Gallimore, A. D., Cai, C., Body, I. D., "Vacuum Chamber Pressure Maps of a Hall Thruster Cold Flow Expansion," Journal of Propulsion and Power, Volume 20, Number 6, Nov.–Dec. 2004, pp. 1127-1131.
  
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Conference Papers

  1. Xu, K. G., McCormick, W. G., Walker, M. L. R., “Ion Focusing for High Thrust-to-Power Hall Thrusters”, 44th Joint Propulsion Conference, Hartford, CT, July 20-23, 2008.
     

  2. Williams, L., Walker, M. L. R., “Experimental Characterization of a Carbon Nanotube Field Emission Cathode”, 44th Joint Propulsion Conference, Hartford, CT, July 20-23, 2008.
     

  3. Palmer, D., Walker, M. L. R., “Performance of an Annular Helicon Plasma Source”, 44th Joint Propulsion Conference, Hartford, CT, July 20-23, 2008.
     

  4. Palmer, D., Walker, M. L. R., Manente, M., Carlsson, J., Bramanti, C., Pavarin, D., “Experimental Analysis of a Low-Power Helicon Thruster”, 44th Joint Propulsion Conference, Hartford, CT, July 20-23, 2008.
     

  5. Pavarin, D., Manente, M., Walker, M. L. R., Carlsson, J., Bramanti, C., Saggin, B., “Feasibility Study of a Medium-Power Helicon Thruster”, 44th Joint Propulsion Conference, Hartford, CT, July 20-23, 2008.
     

  6. Kluever, C. A., Walker, M. L. R., “Electric Propulsion Thruster Comparison for LEO Maneuvers”, 44th Joint Propulsion Conference, Hartford, CT, July 20-23, 2008.
     

  7. Walker, M. L. R., Manente, M., Carlsson, J., Bramanti, C., Pavarin, D., “Experimental Analysis of Low-Power Helicon Thruster”, 5th International spacecraft Propulsion Conference, Crete, Greece, May 5-9, 2008.
     

  8. Manente, M., Walker, M. L. R., Carlsson, J., Bramanti, C., Pavarin, D., “Feasibility Study of Low-Power Helicon Thruster”, 5th International spacecraft Propulsion Conference, Crete, Greece, May 5-9, 2008.
     

  9. Palmer, D., Akinli, C., Walker, M. L. R., “Characterization of an Annular Helicon Plasma Source”, IEPC-2007-202, International Electric Propulsion Conference, Florence, Italy, September 17-20, 2007.
     
  10. Akinli, C., Palmer, D., Walker, M. L. R., “Comparison of the Theoretical and Experimental Performance of an Annular Helicon Plasma Source”, IEPC-2007-236, International Electric Propulsion Conference, Florence, Italy, September 17-20, 2007.
     
  11. Palmer, D., Yano, M., Walker, M. L. R., “Characterization of Cylindrical and Annular Helicon Plasma Sources”, 9th International Workshop on the Interrelationship between Plasma Experiments in Laboratory and Space, Cairns, Australia, August 5-10, 2007.
     
  12. Stubbers, R, Jurczyk, B. E., Rovey, J. L., Walker, M. L. R., Alman, D. A. Coventry, M. D., “Compact Toroid Formation Using an Annular Helicon Preionization Source”, AIAA-2007-5307, 43rd Joint Propulsion Conference, Cincinnati, OH, July 8-11, 2007.
     
  13. Yano, M., Williams, L., Walker, M. L. R. “Design and Operation of an Annular Helicon Plasma Source”, AIAA-2007-5309, 43rd Joint Propulsion Conference, Cincinnati, OH, July 8-11, 2007.
     
  14. Gilland, J. H., Walker, M. L. R., Pencil, E. J., "Thrust Stand for Applied Field MPD Thrusters", IEPC-2005-215, 29th International Electric Propulsion Conference, Princeton, NJ, Oct. 31-Nov. 4, 2005.  
     
  15. Walker, M. L. R., Gallimore, A. D., "Performance Characteristics of a Cluster of 5 kW Laboratory Hall Thrusters," AIAA-2004-3767, 40th Joint Propulsion Conference, Fort Lauderdale, FL, July 11-14, 2004.
     
  16. Rovey, J. L., Walker, M. L. R., Gallimore, A. D., Peterson, P. Y., "Evaluation of a Magnetically-Filtered Faraday Probe for measuring the ion current density profile of a Hall thruster," AIAA-2004-3948, 40th Joint Propulsion Conference, Fort Lauderdale, FL, July 11-14, 2004.
     
  17. Walker, M. L. R., Gallimore, A. D., "Hot Flow Pressure Map of a Vacuum Facility as a Function of Flow Rate to Study Facility Effects," IEPC-0077-03, 28th International Electric Propulsion Conference, Toulouse, France, March 17-21, 2003.
     
  18. Walker, M. L. R., Gallimore, A. D., Cai, C., Body, I. D., "Pressure Map of a Facility as a Function of Flow Rate to Study Facility Effects," AIAA-2002-3815, 38th Joint Propulsion Conference, Indianapolis, IN, July 7-10, 2002.
     
  19. Walker, M. L. R., Hofer, R. R., Gallimore, A. D., "The Effects of Nude Faraday Probe Design and Vacuum Facility Backpressure on the Measured Ion Current Density Profile of Hall Thruster Plumes," AIAA-2002-4253, 38th Joint Propulsion Conference, Indianapolis, IN, July 7-10, 2002.
     
  20. Boyd, I. D., Cai, C., Walker, M. L. R., Gallimore, A. D., “Computation of Neutral Gas Flow of a Hall Thruster into a Vacuum Chamber,” 23rd International Symposium on Rarefied Gas Dynamics, Whistler, British Columbia, July 20-25, 2002.
     
  21. Hofer, R. R., Walker, M. L. R., Gallimore, A. D., "A Comparison of Nude and Collimated Faraday Probes for Use with Hall Thrusters," IEPC-01-020, 27th International Electric Propulsion Conference, Pasadena, CA, October 15-19, 2001.
  
 

Other Publications

 

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