X-ray imaging apparatus
AssigneeKabushiki Kaisha Toshiba
InventorsAkira Tsukamoto, Takayuki Tomisaki
Life of this patent
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Abstract
A plurality of photoelectric conversion sections correspond respectively to a plurality of pixels arranged on a detection surface for converting incident X rays into charge. A plurality of charge storage sections store the charge converted by the plurality of photoelectric conversion sections, respectively. A plurality of transfer TFTs read out the charge stored in the plurality of charge storage sections, respectively. A plurality of protective TFTs have an end thereof connected to the each input terminal of the plurality of transfer TFTs and sweep out from the other end thereof the charge stored in the charge storage sections when the voltage applied thereto exceeds a predetermined voltage level lower than the breakdown voltage of the transfer TFTs.
Claims26
An X-ray imaging apparatus comprising:
- a plurality of charge conversion means corresponding to a plurality of pixels arranged on a detection surface, each of said plurality of charge conversion means directly converting incident X rays into a charge;
- a plurality of charge storage means for storing the charge converted by each of said plurality of charge conversion means;
- a plurality of charge reading means for reading the charge stored in each of said plurality of charge storage means;
- and
- a plurality of sweeping means, each of the plurality of sweeping means having one end thereof connected to a terminal of each of said plurality of charge reading means, each of the plurality of sweeping means sweeping the charge stored in said charge storage means from the one end connected to the terminal through each of the plurality of sweeping means to an opposite end thereof when a voltage applied thereto exceeds a predetermined voltage level.
Dependencies are inferred from the claim text.