Title:
RADIATION IMAGING APPARATUS
Document Type and Number:
Japanese Patent JP2019084304
Kind Code:
A
Abstract:
To allow for suppression of increase in the area of a dead zone of a semiconductor layer while suppressing a change in sensitivity of a pixel even when a focus is moved relative to a radiation detector.SOLUTION: A radiation imaging apparatus is provided that comprises: a radiation source; a radiation detector detecting radiation radiated from the focal point of the radiation source; and a collimator disposed between the radiation source and the radiation detector. The collimator has a base portion; and a stem portion disposed on a side of the radiation source rather than the base portion, and having a width smaller than the width of the base portion. The base portion is disposed at a boundary of pixels of the radiation detector, and the stem portion is disposed at a position shifted from the boundary in a first direction in which the focal point moves relative to the radiation detector.SELECTED DRAWING: Figure 4
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Inventors:
ONOUCHI MASAFUMI
Application Number:
JP2017217302A
Publication Date:
June 06, 2019
Filing Date:
November 10, 2017
Export Citation:
Assignee:
HITACHI LTD
International Classes:
A61B6/06; A61B6/03; G01T7/00
Domestic Patent References:
| JP2013140121A | 2013-07-18 | |||
| JP2016150208A | 2016-08-22 | |||
| JP2004337609A | 2004-12-02 |
Foreign References:
| US20130121475A1 | 2013-05-16 | |||
| US20060118730A1 | 2006-06-08 |
Attorney, Agent or Firm:
Polaire Patent Business Corporation