X-ray or gamma ray systems or devices – Source – Electron tube
Patent
1998-01-21
2000-08-29
Porta, David P.
X-ray or gamma ray systems or devices
Source
Electron tube
378113, 378138, 310359, H01J 3530
Patent
active
061119334
ABSTRACT:
In an X-ray device which includes an X-ray tube (12) provided with means (15, 22, 23) for influencing the electron flow through the X-ray tube (12), a control voltage for the means for influencing the electron flow is customarily generated by means of a complex circuit which, because of its size, is not suitable to be accommodated within the protective tube housing. This has the drawback that the control voltage for the X-ray tube, usually of high voltage potential, must be supplied additionally to the high-voltage supply. Therefore, it is desirable to realize a simple generation means the control voltage which is suitable for accommodation in the protective tube housing. To this end, the invention proposes a piezoelectric transformer (21, 24, 25) for generating the control voltage for the X-ray tube. The invention also relates to a piezoelectric transformer which is particularly suitable for generating such a control voltage.
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Lunding Arne
Peter Diethard
Schaaf Uwe
v. Hacht Reinhard
Van Der Broeck Heinz
Ho Allen C.
Porta David P.
Renfrew, Jr. Dwight R.
U.S. Philips Corporation
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