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Publikováno v:
47th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit.
The paper deals with the results of two test campaigns carried out at Alta and at Giessen University respectively on Snecma’s PPS1350-TSD Hall thruster and on RIT-10 ion engine for performance characterization with nitrogen and oxygen as propellant
Autor:
C. Koppel, D. Valentian
Publikováno v:
32nd Joint Propulsion Conference and Exhibit.
Publikováno v:
21st International Electric Propulsion Conference.
Publikováno v:
Acta Astronautica. 16:233-239
The A.G.H.F. is a modular facility specifically dedicated to the directional solidification of metallic or semiconductors samples. The design of the facility is driven from the Bridgman-Stockbarger technique which is used to obtain the cristal growth
Publikováno v:
Cryogenics. 27:4-7
This flowmeter has been developed for a space cryostat in the framework of the Infrared Space Observatory (ISO) project. It is a thermal mass device, derived from a commercial model. For the first step several commercial thermal mass flowmeters were
Publikováno v:
Cryogenics. 27:59-62
For the Infrared Space Observatory project, an electric motor has been studied and tested. This stepper motor, derived from a space qualified component, is able to run under vacuum at liquid helium temperatures. Moreover, its superconducting winding
Autor:
H.O. Schrade, C. Bartoli, Alessandro Atzei, H. Bassner, H. von Rohden, D. Valentian, M. Andrenucci, Eduard Igenbergs, A. Trippi, G. Baiocchi, Horst W. Loeb
Publikováno v:
Acta Astronautica. 14:393-412
This paper presents the major activities carried out in Europe in the field of Electric Propulsion. Four lines of development are presently pursued. Two different models from the RIT family of radio-frequency ion thrusters are being developed in Germ
Autor:
D. Valentian, J.P. Bugeat
Publikováno v:
Acta Astronautica. 10:697-701
A laboratory model of field emission ion thruster has been used to demonstrate the clustering capability of field emission ion sources. The single emitters sustained preliminary tests aimed to increase elementary trust. Clustering had shown the addit
Publikováno v:
25th Joint Propulsion Conference.