Zobrazeno 1 - 10
of 20
pro vyhledávání: '"E. V. Pawlik"'
Publikováno v:
SPIE Proceedings.
A project to develop precision segmented reflectors (PSRs) which operate at submillimeter wavelengths is described. The development of a light efficient means for the construction of large-aperture segmented reflecting space-based telescopes is the p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::059e31376c7c8260ddfc316ba30092cf
https://doi.org/10.1117/12.20407
https://doi.org/10.1117/12.20407
Autor:
Shigeo Nakanishi, E. V. Pawlik
Publikováno v:
Journal of Spacecraft and Rockets. 5:801-807
Kaufman thrustor with curved stainless steel accelerating grid system noting operation, efficiency, plasma instability, etc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f3332f792fd6727eae71a1defc82164b
https://doi.org/10.2514/3.29361
https://doi.org/10.2514/3.29361
Publikováno v:
Journal of Spacecraft and Rockets. 7:968-976
Solar electric propulsion system performance consisting of thrustors with thrust vector aligning actuators, switching network and flight type power conditioner
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1e22ffed968f1895dd38244d33d3e3e6
https://doi.org/10.2514/3.30079
https://doi.org/10.2514/3.30079
Publikováno v:
Journal of Spacecraft and Rockets. 8:245-250
Hollow cathode ion thrustor and lightweight power conditioner of solar-electric propulsion system for unmanned deep space probes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa7ed6ac3c69f9f6e243a64204b135cd
https://doi.org/10.2514/3.30255
https://doi.org/10.2514/3.30255
Autor:
P. A. Mueller, E. V. Pawlik
Publikováno v:
Journal of Spacecraft and Rockets. 7:837-842
Results of an analysis and a digital computer simulation of various control loops for ion thruster control are presented. The concept considered for controlling the thrust of an ion thruster over a 2-to-l range in output power is to vary the propella
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fd73573b704419fb38c5c852a559a3d6
https://doi.org/10.2514/3.30050
https://doi.org/10.2514/3.30050
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::be6cca3fa040372207a474cd16cd2afc
https://doi.org/10.2514/3.29363
https://doi.org/10.2514/3.29363
Publikováno v:
Journal of Spacecraft and Rockets. 10:327-332
The calibration of a typical 20-cm diameter ion thrustor was examined to determine performance penalties that must be assessed in projecting measured performance into a space environment. Four specific areas were investigated. These include (1) doubl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5430d5a942f017a4e54e7c11b554df91
https://doi.org/10.2514/3.61889
https://doi.org/10.2514/3.61889
Publikováno v:
Journal of Spacecraft and Rockets. 10:35-41
Experimental and analytical results for a typical 20-cm-diam, hollow-cathode ion thrustor are reported. The foundation of the investigation was the application of thermal model correction techniques. Pertinent thermal properties and plasma heating ch
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::424f65a716ef824eb2b36444c25250b6
https://doi.org/10.2514/3.61844
https://doi.org/10.2514/3.61844
Autor:
W. M. Phillips, E. V. Pawlik
Publikováno v:
13th International Electric Propulsion Conference.
A study is currently underway to design a nuclear electric propulsion vehicle capable of performing detailed exploration of the outer-planets. Primary emphasis is on the power subsystem. Secondary emphasis includes integration into a spacecraft, and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4f9dbccd49810115cafa8e5f3a8d3820
https://doi.org/10.2514/6.1978-691
https://doi.org/10.2514/6.1978-691
Autor:
L. K. Rudolph, E. V. Pawlik
Publikováno v:
14th International Electric Propulsion Conference.
Recent research results have inferred that the self-field magnetoplasmadynamic (MPD) thruster can attain efficiency and specific impulse levels which are competitive with ion thrusters. Based on these results, a program was initiated at JPL to develo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::94475779a59afa1710638eaf9416009b
https://doi.org/10.2514/6.1979-2050
https://doi.org/10.2514/6.1979-2050