X-RAY IMAGING APPARATUS AND IMAGING METHOD OF X-RAY IMAGING APPARATUS

PROBLEM TO BE SOLVED: To allow exposure at any imaging timing, and to obtain signals of a subject by high speed response. SOLUTION: A one-frame delay memory 120, a differentiator 121, a reference value generating circuit 110, and a comparator 109 are provided as means to detect the beginning and the...

Full description

Saved in:
Bibliographic Details
Main Authors UMIBE NORIYUKI, TASHIRO KAZUAKI
Format Patent
LanguageEnglish
Published 07.05.2003
Edition7
Subjects
CALCULATING
COMPUTING
COUNTING
DIAGNOSIS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
MEASUREMENT OF NUCLEAR OR X-RADIATION
MEASURING
MEDICAL OR VETERINARY SCIENCE
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
SURGERY
TESTING
Online AccessGet full text

Cover

More Information
Summary:PROBLEM TO BE SOLVED: To allow exposure at any imaging timing, and to obtain signals of a subject by high speed response. SOLUTION: A one-frame delay memory 120, a differentiator 121, a reference value generating circuit 110, and a comparator 109 are provided as means to detect the beginning and the end of radiation of X-ray from an X-ray source 101 based on signals obtained by nondestructive readout from an X-ray imaging panel 105. The difference between the signals in a frame and those in the next frame obtained by nondestructive readout is found, and the differential signals and the reference value are compared. The beginning and/or the end of irradiation with X-ray is detected by the result obtained by the comparison.
Bibliography:Application Number: JP20010325167