X-ray tube enclosure with resistive coating

Details X-ray tube enclosure with resistive coating X-ray tube enclosure with resistive coating

1991-05-22

1992-10-27

Porta, David P.

X-ray or gamma ray systems or devices

Source

Electron tube

378121, 378201, 313479, 331 97, H01J 3502

Patent

active

051596180

ABSTRACT:
A X-ray emissive vacuum tube is fully enclosed in an electrically conductive casing with electrical terminals through which bias potentials are applied to the tube. Occasionally an arc discharge occurs between electrodes within the tube generating a high frequency signal which ordinarily resonates with the conventional casings. However a resistive coating is applied to the inner surface of the case. That coating has a resistivity sufficient to lower the Q of the case to a value at which significant ringing does not result from the discharge.

REFERENCES:
patent: 2504706 (1950-04-01), Lempert et al.
patent: 3465154 (1969-09-01), Berends
patent: 4284922 (1981-08-01), Perring et al.
patent: 5030935 (1991-07-01), Williams et al.

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