検出値較正方法、X線CT装置、較正用ファントムおよび保持具
- 专利权人:
- 株式会社リガク
- 发明人:
- 原 幸寛,小玉 祐一,山田 鮎太,新井 嘉則
- 申请号：
- JP2006302654
- 公开号：
- JP5090714B2
- 申请日:
- 2006.11.08
- 申请国别(地区):
- JP
- 年份:
- 2012
- 代理人:
- 摘要：
PROBLEM TO BE SOLVED: To provide an effective detected value calibration method which enables the acquisition of an image of a specimen with a moderate contrast by carrying out an effective calibration and an X-ray CT system, a phantom for calibration and a holder used for it.
SOLUTION: The detected value calibration method for the calibration of detected values in an X-ray CT radiography comprises the step of fixing the phantom 1 for calibration filled with a liquid on the X-ray CT system to carry out an X-ray CT radiography for calibration, the step of putting the specimen 30 into the liquid of the phantom 1 for calibration to fix the phantom for calibration with the specimen 30 in it on the X ray CT system to carry out the X-ray CT radiography of the specimen 30 and a step of calibrating the detected values by the X-ray CT radiography of the specimen using the detected values by the X-ray CT radiography for calibration. The photographing is made with the tube voltage of X rays lowered to carry out the calibration, thereby achieving a higher contrast of CT data.
COPYRIGHT: (C)2008,JPO&INPIT
- 来源网站：
- 中国工程科技知识中心
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