Title:
【発明の名称】放射線検出装置
Document Type and Number:
Japanese Patent JP3376920
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To precisely correct the sensitivity of an X-ray detector. SOLUTION: An output signal, for an X-ray detector 11, obtained in such a way that the X-ray detector 11 is irradiated with X-rays at a prescribed intensity is measured. Its change in terms of time is detected. The output signal from the X-ray detector 11 after a judgment that the change in terms of time is terminated is used as sensitivity correction data. At this time the number of times of blank measurements required until the judgment that the change in terms of time of the X-ray detector 11 is terminated is stored. In a sensitivity correction after that the X-ray detector 11 is irradiated with the X-rays at a prescribed intensity, and the output signal from the X-ray detector 11 after the execution of blank measurements in the stored number of times of blank measurements is used as sensitivity correction data.
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Inventors:
Ryoichi Sawada
Naoyuki Hori
Naoyuki Hori
Application Number:
JP19163798A
Publication Date:
February 17, 2003
Filing Date:
July 07, 1998
Export Citation:
Assignee:
SHIMADZU CORPORATION
International Classes:
A61B6/00; G01T1/17; G01T1/167; (IPC1-7): G01T1/167; A61B6/00; G01T1/17
Domestic Patent References:
| JP772256A | ||||
| JP4138325A | ||||
| JP2163642A | ||||
| JP2248889A | ||||
| JP1073668A | ||||
| JP429083A | ||||
| JP682467A | ||||
| JP629789A |
Attorney, Agent or Firm:
Yoshiro Kurauchi