X-ray tube system and apparatus with conductive proximity...

Details X-ray tube system and apparatus with conductive proximity... X-ray tube system and apparatus with conductive proximity...

2005-05-31

2005-05-31

Glick, Edward J. (Department: 2882)

X-ray or gamma ray systems or devices

Source

C378S121000

Reexamination Certificate

active

06901136

ABSTRACT:
An imaging tube (52, 52′) includes a vacuum vessel (96) and an atmospheric-side supply line assembly (104, 104′). The vacuum vessel (96) has an internal vacuum (98). The supply line assembly (104, 104′) has an electromagnetic shield (94, 94′). An insulator (106, 106′) separates the internal vacuum (98) from an external atmosphere (126). A cathode post (92, 92′) resides within the vacuum vessel (96). The cathode post (92, 92′) is in conductive proximity with the electromagnetic shield (94, 94′) and prevents the bending of electrostatic field lines within the imaging tube (52, 52′).

REFERENCES:
patent: 5136625 (1992-08-01), Heiting et al.
patent: 6236713 (2001-05-01), True et al.
patent: 6570962 (2003-05-01), Maska et al.
patent: 6798865 (2004-09-01), Tang
patent: 2004/0096037 (2004-05-01), Tang et al.

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