Publications

Thruster Publications:

1) T.R. Barker and P.J. Wilbur, "Impingement-Current Erosion Characteristics of Accelerator Grids on Two-Grid Thrusters," 32nd Joint Propulsion Conference Paper AIAA 96-3201, July 1-3, 1996, Lake Buena Vista, FL.

2) Zhang, Quan, Xiaohang Peng, Jeff M. Monheiser, Paul J. Wilbur and Dennis Keefer, "Comparisons between Simulation and Experimental Results for Ion Thrusters with Oversized Grid Apertures," AIAA Paper 94-3122, Joint Propulsion Conference, June 1994, Indianapolis, IN.

3) Monheiser, J.M. and P.J. Wilbur, "Development and Verification of a Model to Predict Impingement Currents for Ion Thrusters," NASA CR-195322, April 1994.

4) Monheiser, J. and P.J. Wilbur, "Effects of Design and Operating Conditions on Acceleratore-Grid Impingement Current," Paper IEPC-93-174, Proceedings of 23rd International Electric Propulsion Conference, Seattle, WA., September 1993.

5) Wilbur, P.J., "Ion Propulsion," McGraw Hill Encyclopedia of Science and Technology, McGraw-Hill, 7th Ed., 1992, pp. 375-381.

6) Monheiser, J.M. and P.J. Wilbur, "Advanced Electric Propulsion Research - 1991," NASA CR-190761, October 1992.

7) Monheiser, J.M. and P.J. Wilbur, "An Experimental Study of Impingement Ion Production Mechanisms," AIAA Paper 92-3826, July 1992, Nashville, TN.

8) Wilbur, P.J., R.G. Jahn, and F.C. Curran, "Space Electric Propulsion Plasmas," IEEE Trans. on Plasma Sci., V. 19, No. 6, Dec. 1991, pp. 1167-1179.

9) Free, B., J. Owens and P.J. Wilbur, "Variations of Triple-Grid Geometry and Potentials to Alleviate Accel Grid Erosion," International Electric Propulsion Conference Paper 91-047, Viareggio Italy, Oct. 14-17, 1991.

10) Arakawa, Y. and P.J. Wilbur, "Finite Element Analysis of Plasma Flows in Cusped Discharge Chambers," J. Propulsion & Power, V. 7, No. 1, Jan./Feb. 1991, pp. 125-128.

11) Monheiser, J.M. and P.J. Wilbur, "Advanced Electric Propulsion Research- 1990, NASA CR-187103, Jan. 1991.

12) Wilbur, P.J., J.R. Beattie and J. Hyman, Jr., "An Approach to the Parametric Design of Ion Thrusters," J. Prop. and Power, V. 6, No. 5, Sept.-Oct. 1990, pp. 575-583.

13) Bianconi, M., G. Cirri, M. LeBrun, G. Matticari and P.J. Wilbur, "A Review of Manufacturing and Characterization Activities at Proel on a Plasma Bridge Neutralizer for the RIT 10 Thruster," A1AA Paper 90-2588, July 1990.

14) Anderson, J.R., P.J. Wilbur, and M.R. Carruth, Jr, "An Ion Optics System Incorporating Radio Frequency Mass Separation," AIAA Paper 90-2567, July 1990.

15) Wilbur, P.J., "Advanced Electric Propulsion Research - 1988, NASA CR-182254, Feb. 1989.

16) Anderson, J.R. and P.J. Wilbur, "The Divergence Characteristics of Constrained-Sheath Optics Systems for Use with 5-eV Atomic Oxygen Sources," NASA CR-182238, Jan. 1989.

17) Vaughn, J.A. and P.J. Wilbur, "Characterization of Hollow Cathode, Ring Cusp Discharge Chambers," NASA CR-182255, Jan. 1989.

18) Wilbur, P.J., J.R. Beattie and J. Hyman, Jr., "An Approach to the Parametric Design of Ion Thrusters," Paper IEPC 88-080, 20th International Electric Propulsion Conference, Oct. 1988, Garmisch-Partenkirchen, West Germany.

19) Arakawa, Y. and P.J. Wilbur, "Discharge Plasma Calculations in Cusped Ion Thrusters Using the Finite Element Method," Paper IEPC 88-079, 20th International Electric Propulsion Conference, Oct. 1988, Garmisch-Partenkirchen, West Germany.

20) Vaughn, J.A. and P.J. Wilbur, "Ring Cusp/Hollow Cathode Discharge Chamber Performance Studies," Paper IEPC 88-064, 20th International Electric Propulsion Conference, Oct. 1988, Garmisch-Partenkirchen, West Germany.

21) Wilbur, Paul J., "Advanced Electric Propulsion Research," NASA CR-182130, Jan. 1988.

22) Luebben, C.R. and P.J. Wilbur, "Hollow Cathodes for Arcjet Thrusters," AIAA Paper 87-1088, International Electric Propulsion Conference, May 13, 1987, Colorado Springs, Colorado.

23) Wilbur, P.J. and J.Z. Han, "Constrained-Sheath Optics for High Thrust-Density, Low Specific-Impulse Ion Thrusters," AIAA Paper 87-1073, International Electric Propulsion Conference, May 13, 1987, Colorado Springs, Colorado.

24) Wilbur, P.J., "Advanced Electric Propulsion and Space Plasma Contactor Research," NASA CR-180862, Jan. 1987.

25) Wei, Ronghua and Paul J. Wilbur, "Space-charge-limited Current Flow in a Spherical Double Sheath," J. App. Phys., Vol. 60, No. 7, 1 Oct 1986, pp. 2280-2284.

26) Hiatt, J.M. and P.J. Wilbur, "Ring Cusp Discharge Chamber Performance Optimization," Journal of Propulsion and Power," Vol. 2, No. 5, Sept.-Oct. 1986, pp. 390-397.

27) Brophy, J.R. and P.J. Wilbur, "Calculation of Plasma Properties in Ion Sources," AIAA Journal, Vol. 24, No. 9, Sept. 1986, pp. 1516-1523.

28) Wilbur, P.J. and J.R. Brophy, "The Effect of Discharge Chamber Wall Temperature on Ion Thruster Performance," AIAA Journal, V. 24, No. 2, Feb. 1986, pp. 278-283.

29) Wilbur, P.J., "Advanced Electric Propulsion and Space Plasma Contactor Research," NASA CR-175119, Jan. 1986.

30) Brophy, J.R. and P.J. Wilbur, "An Experimental Investigation of Cusped Magnetic Field Discharge Chambers," AIAA Journal, V. 24, No. 1, Jan. 1986, pp. 21-26.

31) Shaw, B.D., C.E. Mitchell and P.J. Wilbur, "The Annular Flow, Electrothermal Plug Ramjet," Journal of Power and Propulsion, Vol. 1, No. 6, Nov.-Dec. 1985, pp. 417-424.

32) Brophy, J.R. and P.J. Wilbur, "Simple Performance Model for Ring and Line Cusp Ion Thrusters," AIAA Journal, Vol. 23, No. 11, Nov. 1985, pp. 1731-1736.

33) Brophy, J.R. and P.J. Wilbur, "Calculation of Plasma Properties in Ion Sources," AIAA Paper No. 85-2006, Sept. 30, 1985.

34) Hiatt, J.M. and P.J. Wilbur, "Ring Cusp Discharge Chamber Performance Optimization," AIAA Paper No. 85-2007, Sept. 30, 1985.

35) Brophy, J.R. and P.J. Wilbur, "Application of an Ion Thruster Performance Model to Orbit Transfer Mission Analysis," AIAA Paper No. 85-1150, July 8-10, 1985.

36) Rovang, D.S. and P.J. Wilbur, "Ion Extraction Capabilities of Two-Grid Accelerator Systems," Journal of Power and Propulsion, Vol. 1, No. 3, May-June 1985, pp. 172-179.

37) Wilbur, P.J., "Advanced Ion Thruster Research," NASA CR-174862, January 1985.

38) Brophy, J.R. and P.J. Wilbur, "Ion Thruster Performance Model," NASA CR-174810, December 1984.

39) Shaw, B.D. and P.J. Wilbur, "The Annular Flow Electrothermal Ramjet," NASA CR-174704, July 1984.

40) Shaw, B.D., C.E. Mitchell and P. J. Wilbur, "The Annular Flow Electro-thermal Ramjet," AIAA paper 84-1593, June l984.

41) Rovang, D.C. and P.J. Wilbur, "Ion Extraction Capabilities of Two-Grid Accelerator Systems," Int'l. Elec. Propulsion Conf., Tokyo, Japan, May l984, IEPC Paper 84-86.

42) Brophy, J.R. and P.J. Wilbur, "An Experimental Investigation of Cusped Magnetic Field Discharge Chambers," Int'l Elec. Propulsion Conf., Tokyo, Japan, May l984, IEPC Paper 84-70.

43) Brophy, J.R. and P.J. Wilbur, "Simple Performance Model for Ring and Line Cusp Ion Thruster," Int'l Elec. Propulsion Conf. Tokyo, Japan, May l984, IEPC Paper 84-68.

44) Wilbur, P.J. and J.R. Brophy, "The Effect of Discharge Chamber Wall Temperature on Ion Thruster Performance," Int'l. Elec. Propulsion Conf., Tokyo, Japan, May l984, IEPC Paper 84-67.

45) Rovang, D.C. and P.J. Wilbur, "Ion Extraction Capabilities of Two-Grid Accelerator Systems," NASA CR-174621, Feb. l984.

46) Wilbur, P.J., "Advanced Ion Thruster Research," NASA CR-168340, Jan. l984.

47) Wilbur, P.J., "Electrostatic Thruster Capabilities for Orbit-Raising and Manuvering Missions," Appears in Orbit-Raising and Manuvering Propulsion: Research Status and Needs, L. H. Caveny ed., Vol. 89. Progress in Astronautics and Aeronautics, l984, American Institute of Aeronautics and Astronautics, pp. 327-341.

48) Brophy, J.R. and P.J. Wilbur, "The Flexible Magnetic Field Thruster," J. of Spacecraft and Rockets, Vol. 20, No. 6, Nov.-Dec. l983, pp. 611-618.

49) Wilbur, P.J., C.E. Mitchell and B.D. Shaw, "The Electrothermal Ramjet," J. of Spacecraft and Rockets, Vol. 20, No. 6, Nov.-Dec. l983, pp. 603-618.

50) Feng, Yu-Cai and P.J. Wilbur, "Enhancement of Ion Beam Currents Through Space-Charge Compensation," J. Appl. Phys., Vol. 54, No. 11, Nov. l983, pp. 6113-6118.

51) Brophy, J.R. and P.J. Wilbur, "Recent Developments in Ion Sources for Space Propulsion," Proceedings of the International Ion Engineering Congress, 12-16 September 1983, Kyoto, Japan, Invited Paper, pp. 411-422.

52) Wilbur, P.J., "Advanced Ion Thruster and Electrothermal Launcher Research," NASA CR 168083, Jan. 1983.

53) Brophy, J.R. and P.J. Wilbur, "Baffle Aperture Design Model for Electron Bombardment Thrusters", J. of Spacecraft and Rockets, Vol. 19, No. 6, Nov/Dec. 1982, pp. 586-591.

54) Homa, J.M. and P.J. Wilbur, "Ion Beamlet Vectoring by Grid Translation," AIAA Paper No. 82-1895, Nov. 1982.

55) Feng, Yu-Cai and P.J. Wilbur, "The Influence of Stray Magnetic Fields on Ion Beam Neutralization," AIAA Paper No. 82-1945, Nov. 1982.

56) Rovang, D.C. and P.J. Wilbur, "Ion Extraction Capabilities of Very Closely Spaced Grids," AIAA Paper No. 82-1894, Nov. 1982.

57) Brophy, J.R. and P.J. Wilbur," The Flexible Magnetic Field Thruster," AIAA Paper No. 82-1936, Nov. 1982.

58) Wilbur, P.J., C.E. Mitchell and B.D. Shaw, "The Electrothermal Ramjet," AIAA Paper 82-1216, June l982.

58) Wilbur, P.J., "Advanced Space Propulsion Research", NASA CR-165584, Dec. 1981.

59) Aston, G. and P.J. Wilbur, "The Screen Hole Plasma Sheath of an Ion Accelerator System", appears in Electric Propulsion and its Application to Space Missions, v. 79 of Progress in Astronautics and Aeronautics, 1981, pp. 251-261.

60) Longhurst, G.R. and P.J. Wilbur, "Plasma Property and Performance Predictions for Mercury Ion Thrusters", appears in Electric Propulsion and its Application to Space Missions, v. 79 of Progress in Astronautics and Aeronautics, 1981, pp. 224-250.

61) Wilbur, P.J., "A Model for Nitrogen Chemisorption in Ion Thrusters, appears in Electric Propulsion and its Application to Space Missions, v. 79 of Progress in Astronautics and Aeronautics, 1981, pp. 211-223.

62) Brophy, J.R. and P.J. Wilbur, "Electron Diffusion through the Baffle Aperture of a Hollow Cathode Thruster", appears in Electric Propulsion and its Application to Space Missions, v. 79 of Progress in Astronautics and Aeronautics, 1981, pp. 159-172.

63) Aston, G. and P.J. Wilbur, "Ion Extraction from a Plasma," J. Appl. Phys., Vol. 52, No. 4, April 1981, pp. 2614-2626.

64) Brophy, J.R. and P.J. Wilbur, "Design Model for the Baffle Aperture Region of a Hollow Cathode Thruster," AIAA Paper No. 81-0758, April 1981.

65) Wilbur, P.J., "Ion and Advanced Electric Thruster Research," NASA CR-165253, December 1980.

66) Brophy, J.R., and P.J. Wilbur, "Baffle Aperture Design Study of Hollow Cathode Equipped Ion Thrusters," NASA CR-165164, Oct. 1980.

67) Aston, G., and P.J. Wilbur, "Ion Extraction from a Plasma," NASA CR-159849, June 1980.

68) Wilbur, P.J., "Physical Phenomena in Mercury Ion Thrusters," NASA CR-159784, Dec. 1979.

69) Wilbur, P.J., and H.R. Kaufman, "Double Ion Production in Argon and Xenon Ion Thrusters," Journal of Spacecraft and Rockets, Vol. 16, July-August, 1979, pp. 264-267.

70) Aston, G. and P.J. Wilbur, "The Screen Hole Plasma Sheath of an Ion Accelerator System," AIAA Paper 79-2114, Oct. 1979.

71) Wilbur, P.J., "A Model for Nitrogen Chemisorption in Ion Thruster," AIAA Paper 79-2062, Oct. 1979.

72) Brophy, J.R. and P.J. Wilbur, "Electron Diffusion Through the Baffle Aperture of a Hollow Cathode Thruster," AIAA Paper 79-2060, Oct. 1979.

73) Longhurst, G.R. and P.J. Wilbur, "Plasma Property and Performance Prediction in Mercury Ion Thruster," AIAA Paper 79-2054, Oct. 1979.

74) Wilbur, P.J., "Mercury Ion Thruster Research--1978," NASA CR-159485, December 1978.

75) Longhurst, G.R., and P.J. Wilbur, "Multipole Mercury Ion Thrusters," Journal of Spacecraft and Rockets, Vol. 16, No. 1, pp. 42-47, 1979.

76) Aston, G., H.R. Kaufman, and P.J. Wilbur, "Ion Beam Divergence Characteristics of Two-Grid Accelerator Systems," AIAA Journal, Vol. 16, No. 5, pp. 516-524, May 1978.

77) Longhurst, G.R., and P.J. Wilbur, "Multipole Mercury Ion Thruster," AIAA Paper 78-632, April 1978.

78) Wilbur, P.J., and H.R. Kaufman, "Scaling Relationships for Mercury and Gaseous Propellant Ion Thrusters," AIAA Paper No. 78-667, April 1978.

79) Wilbur, P.J., "Mercury Ion Thruster Research--1977," NASA CR-135317, December 1977.

80) Beattie, J.R., and P.J. Wilbur, "Cusped Magnetic Field Mercury Ion Thruster," Journal of Spacecraft and Rockets, Vol. 14, No. 12, pp. 747-755, December 1977.

81) Peters, R.R., and P.J. Wilbur, "Mercury Ion Thruster Doubly Charged Ion Model," Journal of Spacecraft and Rockets, Vol. 14, No. 8, pp. 461-468.

82) Wilbur, P. J., "15 cm Mercury Ion Thruster Research - 1976, NASA CR-135116, December 1976.

83) Beattie, J.R., and P.J. Wilbur, "Cusped Magnetic Field Mercury Ion Thruster," AIAA Paper No. 76-1011, Nov. 14-17, 1976.

84) Peters, R.R., and P.J. Wilbur, "Mercury Ion Thruster Doubly Charged Ion Model," AIAA Paper No. 76-1010, Nov. 14-17, 1976.

85) Beattie, J.R., and P.J. Wilbur, "Cusped Magnetic Field Mercury Ion Thruster," AIAA Paper No. 76-1001, Nov. 14-17, 1976.

86) Wilbur, P.J. and H.R. Kaufman, "Plasma Research in Electric Propulsion at Colorado State University," Proceedings of Princeton University Conference on Partially Ionized Plasmas including the 3rd Symposium on Uranium Plasmas, June 10, 1976, pp. 37-47.

87) Aston, Graeme, and P.J. Wilbur, "The Ion-Optics of a Two-grid Electron-Bombardment Thruster," NASA CR-135034, May 1976.

88) Peters, R.R. and P.J. Wilbur, "Double Ion Production in Mercury Thruster," NASA CR-135034, May 1976.

89) Wilbur, P.J., "15 cm Mercury Ion Thruster Research - 1975," NASA CR-134905, December 1975.

90) Beattie, J.R. and P.J. Wilbur, "15 cm Cusped Magnetic Field Mercury Mercury Ion Thruster Research," AIAA Paper 74-429, March 19-21, 1975.

91) Peters, R.R. and P.J. Wilbur, "Double Ion Production in Mercury Thrusters," AIAA Paper 75-398, March 19-21, 1975.

92) Wilbur, P.J., "Performance of Fifteen-Centimeter Ion Thruster with Reliable Restart Capability," Journal of Spacecraft and Rockets, Vol. 11, No. 9, September 1974, pp. 621-624.

93) Wilbur, P.J., "Mercury Flow Meter for Ion thruster Testing," Journal of Spacecraft and Rockets, Vol. 11, No. 10, October 1974, pp. 728-729.

94) Wilbur, P.J., "Hollow Cathode Restartable 15 cm Diameter Ion Thruster," NASA CR-134532, December 1973.

95) Wilbur, P.J., "A Mercury Flow Meter for Ion Thruster Testing," AIAA 10th Electric Propulsion Conference (1973), AIAA Paper No. 73-1087, November 1973.

96) Wilbur, P.J., "Performance of a 15-cm Ion Thruster with Reliable Restart Capability," AIAA 10th Electric Propulsion Conference (1973), AIAA Paper No. 73-1139, November 1973.

97) Wilbur, Paul J., "Correlation of Ion and Beam Current Densities in Kaufman Thrusters," Journal of Spacecraft and Rockets, Vol. 10 No. 9, p. 623, September 1973.

98) Wilbur, Paul J., "Performance of a 15 cm Ion Thruster with Dished Grids," Conference on Electric Propulsion of Space Vehicles-Culham Laboratory, Abingdon, Berkshire, England, April 10-12, 1973.

99) Wilbur, Paul J. and Jerry Isaacson, "Plasma Property Contours in a 15 cm Hollow Cathode Kaufman Thruster," Colorado State University Report CER 72-73 PJW20, February 1973.

100) Wilbur, Paul J., "Effects of the Hollow Cathode Discharge on Throttled Ion Thruster Performance," Journal of Spacecraft and Rockets, Vol. 10, No. 1, p. 3, January 1973.

101) Wilbur, Paul J., "Experimental Investigation of a Throttlable 15 cm Hollow Cathode Ion thruster," NASA CR-121038, December 1972.

102) Prigmore, Daryl and P.J. Wilbur, "Mobile Rankine Cycle Power Plants, A System Weight Study," ASME Paper 72-WA/Ener 4, Nov. 26-30, 1972.

103) Wilbur, P.J., "Effects of the Hollow Cathode Discharge on Throttled Ion Thruster Performance," AIAA 9th Electric Propulsion Conference (1972), AIAA Paper No. 72-421, April 1972.

104) Wilbur, Paul J., "Electrolytic Capacitor Current Pulse Networks for Quasi-Steady MPD Arcs," AIAA Journal, Vol. 9, No. 8, pp. 1447-1451, August 1971.

105) Palumbo, G., R.P. Vahrenkamp, D.J. Fitzgerald, P.J. Wilbur, H.R. Kaufman and W. R. Mickelsen, "Effect of Geometry and Field Inside the Pole Piece in an Electron Bombardment Thruster," AIAA 8th Electric Propulsion Conference, Stanford, California (1970), AIAA Paper No. 70-1088.

106) Wilbur, Paul J., "Electrolytic Capacitor Current Pulse Networks for Quasi-Steady MPD Arcs," AIAA 8th Electric Propulsion Conference (1970), AIAA Paper No. 70-1082, September 1970.

107) Wilbur, Paul J. and Robert G. Jahn, "Energy Transfer from a Pulse Network to a Propagating Current Sheet," AIAA Journal, Vol. 8, No. 1, p. 144, January 1970.

108) Wilbur, Paul J. and Robert G. Jahn, "Energy Transfer from a Pulse Network to a Propagating Current Sheet," AIAA Paper 69-113, January 21, 1969.