Zobrazeno 1 - 10
of 62
pro vyhledávání: '"Thomas W. Haag"'
Autor:
Sarah E. Cusson, Thomas W. Haag, James H. Gilland, Scott J. Hall, Jonathan A. Mackey, Benjamin Jorns, Alec D. Gallimore, Hani Kamhawi, Matthew J. Baird, Peter Y. Peterson
Publikováno v:
Journal of Propulsion and Power. 38:40-50
The performance of a three-channel, 100-kW nested Hall thruster was evaluated on xenon propellant for total powers up to 102 kW. The thruster demonstrated stable operation in all seven available ch...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e790e7ed7181bbccff66adff6f7858b4
https://doi.org/10.2514/1.b38080
https://doi.org/10.2514/1.b38080
Publikováno v:
Journal of Propulsion and Power. 36:668-676
The performance of many Hall thrusters has been shown to exhibit sensitivity to background pressure in ground-based test facilities, and this property can have an impact on the prediction of in-spa...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f07b9ec0f84f0116a5ad4a353416a70c
https://doi.org/10.2514/1.b37702
https://doi.org/10.2514/1.b37702
Autor:
Jason D. Frieman, Hani Kamhawi, Jon Mackey, Thomas W. Haag, Peter Y. Peterson, Richard R. Hofer
Publikováno v:
AIAA SCITECH 2022 Forum.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5d02a967bc79f1dd3a21e83e4f8c8c08
https://doi.org/10.2514/6.2022-1353
https://doi.org/10.2514/6.2022-1353
Autor:
Scott King, Anthony Pancotti, James E. Polk, Joseph Blakely, John Ziemer, Mitchell L. R. Walker, Thomas W. Haag
Publikováno v:
J Propuls Power
Accurate, direct measurement of thrust or impulse is one of the most critical elements of electric thruster characterization, and one of the most difficult measurements to make. This paper summarizes recommended practices for the design, calibration,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3f5992c41452c3021cccb813e34837c0
https://pubmed.ncbi.nlm.nih.gov/33510551
https://pubmed.ncbi.nlm.nih.gov/33510551
Autor:
Zachary Taillefer, Lawrence Byrne, T.K. Gray, Thomas W. Haag, Samuel Sawyer, Terry Yu, Dean P. Petters, George Kolencik, Jon Mackey, Vlad Hruby, Mike Strain, Surjeet Paintal, James Szabo
Publikováno v:
AIAA Propulsion and Energy 2020 Forum.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b69e75783c1c163176c91baa22b04d71
https://doi.org/10.2514/6.2020-3651
https://doi.org/10.2514/6.2020-3651
Publikováno v:
Krejci
The characterization of a miniaturized ionic liquid electrospray thruster for nanosatellite applications is presented. The thruster investigated features an emitter array of 480 emitter tips per square centimeter and a 1 cm[superscript 3] propellant
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a61197ce0f71b0eb55e5974f2ee077dc
https://doi.org/10.2514/1.a33531
https://doi.org/10.2514/1.a33531
Autor:
Peter Y. Peterson, Hani Kamhawi, Daniel A. Herman, Jonathan A. Mackey, James H. Gilland, Thomas W. Haag, Richard R. Hofer, Jason D. Frieman
Publikováno v:
AIAA Propulsion and Energy 2019 Forum.
The NASA Hall Effect Rocket with Magnetic Shielding (HERMeS) 12.5-kW Hall thruster has been the subject of extensive technology maturation by NASA GRC and JPL in preparation for development into a flight propulsion system. As part of this effort, a s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::87e9cbe06736fdcdef808ead2347019f
https://doi.org/10.2514/6.2019-3895
https://doi.org/10.2514/6.2019-3895
Publikováno v:
2018 Joint Propulsion Conference.
This paper reviews recent iodine electric propulsion research and development activities at the NASA Glenn Research Center (GRC). Activities included (i) investigation of the iodine compatibility of BaO-CaO-Al2O3 impregnated tungsten hollow cathodes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::63bc08d9342c1d51537daec5c8c916c8
https://doi.org/10.2514/6.2018-4422
https://doi.org/10.2514/6.2018-4422
Publikováno v:
2018 Joint Propulsion Conference.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::81575a1b232697e2e038ddb7a736c261
https://doi.org/10.2514/6.2018-4421
https://doi.org/10.2514/6.2018-4421
Autor:
Drew M. Ahern, James H. Gilland, Jason D. Frieman, Thomas W. Haag, Hani Kamhawi, Jonathan A. Mackey, Richard R. Hofer, Peter Y. Peterson, Daniel A. Herman, Wensheng Huang, George J. Williams
Publikováno v:
2018 Joint Propulsion Conference.
The design of a new diagnostic to measure the net erosion of Hall thruster surfaces is presented. This diagnostic consists of a pair of optical non-contact profilometer pens mounted to a set of motion stages, which can interrogate the surface feature
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f989cf3df03e3e17761810b339474ada
https://doi.org/10.2514/6.2018-4721
https://doi.org/10.2514/6.2018-4721