Power supply apparatus

Details Power supply apparatus Power supply apparatus

2007-10-02

2009-08-25

Owens, Douglas W (Department: 2821)

Electric lamp and discharge devices: systems

Discharge device load with fluent material supply to the...

Electron or ion source

C315S111410, C315S111610

Reexamination Certificate

active

07579780

ABSTRACT:
A power supply apparatus for controlling an ion accelerator includes a controller configured to adjust magnitude of ion acceleration in the ion accelerator. The controller controls an anode voltage applied to an anode electrode of the ion accelerator, a gas flow rate of gas flowing through a gas flow rate regulator of the ion accelerator, and magnetic flux density at an ion exit of the ion accelerator to satisfy a formula given as follows:500×109<β·Va·Qd·S·B2where S is a sectional area of the ion exit [m2]; d is an ion accelerating region length [m]; β is a magnetic flux bias ratio; Va is anode voltage [V]; Q is gas flow rate [sccm]; and B is magnetic flux density at the ion exit [T].

REFERENCES:
patent: 5838120 (1998-11-01), Semenkin et al.
patent: 6208080 (2001-03-01), King et al.
patent: 6960888 (2005-11-01), Foster
patent: 2007/0145901 (2007-06-01), Tamida et al.
patent: 2005-282403 (2005-10-01), None
Naoji Yamamoto et al., “Discharge Current Oscillation in Hall Thrusters”, Journal of Propulsion and Power, May 27, 2005, 7 pages.

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