Title:
放射線画像検出装置およびその作動方法
Document Type and Number:
Japanese Patent JP5895032
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To speedily perform processing based on output of a radiation dose detecting sensor.SOLUTION: An FPD 35 includes a pixel 36 for image detection and a detection pixel 65 for radiation dose detection. A signal processing circuit 43 is a pipeline type which is provided with first and second buffer memories 54a and 54b at a post stage of an A/D converter 53. During radiation dose detecting operation, the signal processing circuit 43 performs, in a first cycle, inputting of a radiation dose detecting signal Sd based on electrical charge s from the detection pixel 65, into the first buffer memory 54a, and outputting of a dummy signal Dd from the second buffer memory 54b, in parallel. In a second cycle shorter than the first cycle, the outputting of the radiation dose detecting signal Sd from the first buffer memory 54a, and the inputting of the dummy signal Dd into the second buffer memory 54b are performed in parallel. The first cycle and the second cycle are alternately repeated, and an irradiation start of X-radiation is detected with an irradiation start detector 61 by use of the radiation dose detecting signal Sd.SELECTED DRAWING: Figure 4
Inventors:
Kentaro Noma
Kenji Nakamura
Naoto Iwakiri
Koichi Kitano
Keita Watanabe
Kenji Nakamura
Naoto Iwakiri
Koichi Kitano
Keita Watanabe
Application Number:
JP2014146827A
Publication Date:
March 30, 2016
Filing Date:
July 17, 2014
Export Citation:
Assignee:
FUJIFILM Corporation
International Classes:
H04N5/378; A61B6/00; G01T1/17; H04N5/32
Domestic Patent References:
| JP2009207062A | ||||
| JP2008124548A | ||||
| JP2008535397A | ||||
| JP5306957A | ||||
| JP2006237772A |
Attorney, Agent or Firm:
Kazunori Kobayashi