Method for reducing X-ray tube power de-rating during...

Details Method for reducing X-ray tube power de-rating during... Method for reducing X-ray tube power de-rating during...

2011-05-17

2011-05-17

Song, Hoon (Department: 2882)

X-ray or gamma ray systems or devices

Source

Electron tube

C378S138000

Reexamination Certificate

active

07945024

ABSTRACT:
Methods are provided through which X-ray tube power de-rating can be reduced during dynamic focal spot deflection. In one embodiment, a method comprising generating an electron beam, focusing the electron beam to a first position on an anode, defocusing the electron beam on the anode and refocusing the electron beam at a second position on the anode. In another embodiment, a method comprising generating an electron beam, focusing the electron beam to a first position on an anode, inhibiting the electron beam and refocusing the electron beam at a second position on the anode. In another embodiment, a method comprising generating an electron beam, focusing the electron beam to a first position on an anode, steering the electron beam away from a nominal focal spot radius on the anode and refocusing the electron beam at a second position on the anode.

REFERENCES:
patent: 4631742 (1986-12-01), Oliver
patent: 6778633 (2004-08-01), Loxley et al.
patent: 2005/0163281 (2005-07-01), Negle

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