X-ray apparatus having a control device for preventing damaging

Details X-ray apparatus having a control device for preventing damaging X-ray apparatus having a control device for preventing damaging

1997-02-28

1998-09-15

Porta, David P.

X-ray or gamma ray systems or devices

Source

Electron tube

378117, 378118, H05G 100

Patent

active

058091068

ABSTRACT:
In an X-ray tube with a hydrodynamic slide bearing, an electron beam is caused to strike the focal point track area F on its rotary anode, which then emits X rays. An X-ray emission control device that sets the conditions for emitting the X rays stores as data the rises and drops in the temperature at the electron beam incident point and the other part on the focal point track surface of the anode. On the basis of the data, the input permission or inhibition conditions for the X-ray tube at every moment are calculated and the resulting conditions are displayed on a display unit. As a result, it is possible to perform a computing process in advance to determine whether or not X rays can be emitted under specific conditions without a permitting the rotary anode in the X-ray tube with a hydrodynamic slide bearing to melt and then display the results, thereby enabling a safe, efficient photographing control.

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patent: 5077775 (1991-12-01), Vetter
patent: 5140246 (1992-08-01), Rarick

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