CAT scanner

Details CAT scanner CAT scanner

1990-01-05

1990-11-06

Fields, Carolyn E.

X-ray or gamma ray systems or devices

Electronic circuit

X-ray source power supply

378 15, H05G 160

Patent

active

049691716

ABSTRACT:
A CAT (computerized axial tomography) scanner having a lightweight rotary portion. The scanner has slip rings through which electric power is supplied to an x-ray tube. The slip rings do not need any special insulating mechanism. The scanner includes an inverter (3) for converting a line voltage into an AC voltage between the line voltage and a high voltage applied to the x-ray tube. The frequency of the AC voltage is between the frequency of the line voltage and radio frequencies. This AC voltage is supplied via the slip rings to the rotary portion and then stepped up and rectified by step-up tanks (7, 8) on the rotary portion to obtain the high DC voltage applied to the x-ray tube.

REFERENCES:
patent: 4117334 (1978-09-01), Strauts
patent: 4171488 (1979-10-01), Buehnel
patent: 4192997 (1980-03-01), Baumann
patent: 4221968 (1980-09-01), Franke
patent: 4221969 (1980-09-01), Schmidt
patent: 4323781 (1982-04-01), Baumann et al.
patent: 4368535 (1983-01-01), Baumann
patent: 4514795 (1985-04-01), van der Zwarr
patent: 4661896 (1987-04-01), Isobayashi et al.
patent: 4720844 (1988-01-01), Bougle
patent: 4783795 (1988-11-01), Yahara
patent: 4912735 (1990-03-01), Beer

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