Zobrazeno 1 - 10
of 23
pro vyhledávání: '"V. K. Rawlin"'
Publikováno v:
21st International Electric Propulsion Conference.
For more than 30 years, NASA has conducted an ion propulsion program which has resulted in several experimental space flight demonstrations and the development of many supporting technologies. Technologies appropriate for geosynchronous stationkeepin
Autor:
David C. Byers, V. K. Rawlin
Publikováno v:
Journal of Spacecraft and Rockets. 14:648-654
Presented are the results of an analysis of some critical elements of electron-bombardment ion propulsion systems for use in the transportation and on-orbit operations of large space systems. Using baseline technology from the ongoing primary propuls
Publikováno v:
Journal of Spacecraft and Rockets. 13:579-584
Fluctuations of the discharge and beam plasmas of a 30-cm ion thruster have been measured using 60-Hz laboratory-type power supplies. The thruster was operated at beam currents of 2.0,1.5, and 1.0 A over a range of magnetic baffle currents, at consta
Autor:
V. K. Rawlin, W. R. Kerslake
Publikováno v:
Journal of Spacecraft and Rockets. 7:14-20
1 Kerslake, W. R., Byers, D. C., and Staggs, J. F., "SERT II Experimental Thruster System," AIAA Paper 67-700, Colorado Springs, Colo., 1967; also "SERT II: Mission and Experiments," Journal of Spacecraft and Rockets, Vol. 7, No. 1, Jan. 1970, pp. 4-
Autor:
E. V. Pawlik, V. K. Rawlin
Publikováno v:
Journal of Spacecraft and Rockets. 5:814-820
Mercury fed plasma bridge neutralizers for in- flight operation of SERT II electron bombardment ion thrustor
Autor:
R. T. Bechtel, V. K. Rawlin
Publikováno v:
12th International Electric Propulsion Conference.
The results of extensive testing of two 30-cm ion thrusters which are virtually identical to the 900 series Engineering Model Thruster in an ongoing 15,000-hour life test are presented. Performance data for the nominal fullpower (2650 W) operating po
Autor:
C. E. Hawkins, V. K. Rawlin
Publikováno v:
Conference on Advanced Technology for Future Space Systems.
A 30-cm-diam mercury ion thruster, using two or three grid ion accelerating systems, is operated at increased values of beam current. Comparisons with the SEP (Solar Electric Propulsion) and EPSEP (Extended Performance SEP) baseline thrusters are mad
Autor:
M. A. Mantenieks, V. K. Rawlin
Publikováno v:
11th Electric Propulsion Conference.
The 3.0-m diameter chamber of the 7.6-m diameter by 21.4-m long vacuum tank at NASA LeRC was modified to permit testing of an array of up to six 30-cm thrusters with a variety of laboratory and thermal vacuum bread-board power systems. A primary obje
Autor:
V. K. Rawlin, D. C. Byers
Publikováno v:
12th International Electric Propulsion Conference.
The results of an anlaysis of electron bombardment ion propulsion systems for use in the transportation and on-orbit operations of large space systems are presented. Using baseline technology from the ongoing primary propulsion program and other sour
Publikováno v:
13th International Electric Propulsion Conference.
This study of advanced electrostatic ion thrusters for space propulsion was initiated to determine the suitability of the baseline 30-cm thruster for future missions and to identify other thruster concepts that would better satisfy mission requiremen