Title:
閉鎖電子ドリフトを持つ長さの短いプラズマ加速器
Document Type and Number:
Japanese Patent JP3609407
Kind Code:
B2
Abstract:
PCT No. PCT/FR93/00612 Sec. 371 Date Feb. 16, 1995 Sec. 102(e) Date Feb. 16, 1995 PCT Filed Jun. 21, 1993 PCT Pub. No. WO95/00758 PCT Pub. Date Jan. 5, 1995.The system (31 to 33, 34 to 38) for generating a magnetic field in the main channel of the plasma accelerator are adapted to produce, in the main channel (24) an essentially radial magnetic field at the downstream end (225) of the channel (24), its induction being maximum at this point. The magnetic field has a minimum induction in the transition area in the vicinity of the anode (25), the absolute induction value of the field increasing again upstream of the anode (25), in the region of the buffer chamber (23) in order to produce a magnetic mirror effect. The magnetic field lines include, between the anode (25) and the downstream end (225) of the channel (24), a concavity oriented downstream, causing focusing of ions, the maximum ionisation density area being located downstream of the anode (25). The magnetic field sources comprise several distinct magnetic field sources (31 to 33) and inner (35) and outer (34) radial, plane pole pieces (34, 35) disposed at the outlet face on either side of the main channel (24) and linked to one another by a central core (38), a yoke (36) and a peripheral magnetic circuit (37) axially disposed outside of the main channel (24). The yoke (36) consists of radial elements located in the immediate vicinity of the anode (25) and passing through the annular buffer chamber (23), thereby creating spaces (13) for communication between the annular buffer chamber (23) and the main channel (24).
Inventors:
Valentian, Dominic
Morozov, Alexei
Buglois, Antonina
Morozov, Alexei
Buglois, Antonina
Application Number:
JP50249095A
Publication Date:
January 12, 2005
Filing Date:
June 21, 1993
Export Citation:
Assignee:
Societe Nacional Deuteyudo e Do Contriyucón Do Motor Davuación, "S.N.U.U.Se.M. Ah."
International Classes:
H05H1/54; F03H1/00; H01J1/52; H05H1/00; (IPC1-7): H05H1/54; F03H1/00
Domestic Patent References:
| JP3083561B2 | ||||
| JP3505944A | ||||
| JP5240143A |
Foreign References:
| EP0541309A1 |
Other References:
V. N. Dem'yanenko, I. P. Zubkov, and A. I. Morozov, Open single-lens H all-current accelerator, Sov. Phys. Tech. Phys., 米国,1976年 8月,Vol. 21/No. 8, pp. 987-988
A. M. Bishaev and V. Kim, Local plasma properties in a hall-current ac celerator with an extended acceleration zone, Sov. Phys. Tech. Phys.,米国,1978年 9月,Vol. 23/No. 9, pp. 1055-1057
A. I Morozov, Electric propulsion thrusters and plasmodynamics IEPC-95-6, 24th International Electric Propulsin C, IEPC-95-6, 24th International Electric Propulsion Conference, ロシア,1995年10月,13p
A. M. Bishaev and V. Kim, Local plasma properties in a hall-current ac celerator with an extended acceleration zone, Sov. Phys. Tech. Phys.,米国,1978年 9月,Vol. 23/No. 9, pp. 1055-1057
A. I Morozov, Electric propulsion thrusters and plasmodynamics IEPC-95-6, 24th International Electric Propulsin C, IEPC-95-6, 24th International Electric Propulsion Conference, ロシア,1995年10月,13p
Attorney, Agent or Firm:
Aoyama Aoi
Osamu Kawamiya
Osamu Kawamiya