Emissive coating for X-ray tube rotors

Details Emissive coating for X-ray tube rotors Emissive coating for X-ray tube rotors

1994-04-04

1996-09-03

Wong, Dong

X-ray or gamma ray systems or devices

Source

Electron tube

378128, 378144, H01J 3510

Patent

active

055531148

ABSTRACT:
An improved high performance x-ray system having a rotating anode therein which includes an improved coating for the x-ray tube rotor. The surface of the x-ray tube rotor is coated with a ductile, metal coating, preferably iron, having a thickness of about 0.2 to about 5.0 mils thick. The rotor coating has ductile properties with a strain to fail greater than 0.05% and thermal expansion properties which when placed on an x-ray tube rotor, provides at least about 40,000 x-ray scan-seconds prior to tube failure due to rotor spalling.

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