×

Radiation imaging apparatus, method for controlling the same, and radiation image detection device

  • US 9,322,928 B2
  • Filed: 12/23/2013
  • Issued: 04/26/2016
  • Est. Priority Date: 07/26/2011
  • Status: Active Grant
First Claim
Patent Images

1. An X-ray radiation imaging apparatus used in combination with an X-ray radiation generating apparatus, for performing fluoroscopy, the X-ray radiation generating apparatus successively generating pulses of X-ray radiation to perform pulse irradiation, the X-ray radiation imaging apparatus comprising:

  • an image detector for detecting an X-ray radiation image of an object, the image detector having an image capture field in which pixels are arranged in a matrix, each pixel storing a signal charge in accordance with a dose of the X-ray radiation;

    an X-ray radiation detector for detecting the X-ray radiation and outputting a detection signal in accordance with the dose;

    a controller for allowing the image detector to operate in one of a pulse irradiation mode and a successive irradiation mode, the controller detecting a rise and a fall of the pulse of the X-ray radiation based on the detection signal outputted from the X-ray radiation detector and determining start timing of a storage operation based on timing of detecting the rise and determining start timing of a readout operation based on timing of detecting the fall in the pulse irradiation mode, the signal charge being stored in the storage operation, the stored signal charge being read out in the readout operation, the storage operation and the readout operation being repeated alternately at predetermined time intervals without detection of the rise and the fall of the pulse of the X-ray radiation in the successive irradiation mode;

    a determination section for obtaining external information, which includes information related to the X-ray radiation generating apparatus and imaging conditions, and determining whether the image detector is allowed to be set to the pulse irradiation mode based on the obtained external information; and

    a mode setting section for setting the image detector to one of the pulse irradiation mode and the successive irradiation mode based on a result of determination of the determination section, the mode setting section setting the image detector to the pulse irradiation mode in a case where the image detector is allowed to be set to the pulse irradiation mode, the mode setting section setting the image detector to the successive irradiation mode in a case where the image detector is not allowed to be set to the pulse irradiation mode.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×