Method for supplying power to a heating element of a source...

Details Method for supplying power to a heating element of a source... Method for supplying power to a heating element of a source...

2006-07-18

2006-07-18

Glick, Edward J. (Department: 2882)

X-ray or gamma ray systems or devices

Electronic circuit

X-ray source power supply

C378S110000

Reexamination Certificate

active

07079622

ABSTRACT:
A method for determining the heating time constant of a cathode of an X-ray tube. The value of a boost current applied during a preliminary period must be a function of both a pre-existing heating holding current and a service current to be used subsequently. A model of evolution of cathode temperature produces a minimizing tube current error between a tube current that is expected for the tube and a tube current obtained. The model requires only four parameters that need to be computed.

REFERENCES:
patent: 4366575 (1982-12-01), Bax
patent: 4775992 (1988-10-01), Resnick et al.
patent: 5546441 (1996-08-01), Stege
patent: 16 39 397 (1971-02-01), None
patent: 2 718 599 (1995-10-01), None

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