X-ray or gamma ray systems or devices – Specific application – Fluorescence
Reexamination Certificate
2006-10-31
2006-10-31
Ho, Allen C. (Department: 2882)
X-ray or gamma ray systems or devices
Specific application
Fluorescence
C378S087000, C378S088000
Reexamination Certificate
active
07130370
ABSTRACT:
Inventions related to the intra-vision means, designed for production of visually sensed images of the internal structure of an object, in particular, of a biological object, are aimed at higher accuracy of determining the relative density indices of the object's substance in the obtained image together with avoiding complex and expensive engineering; when used for diagnostic purposes in medicine, the dosage of tissues surrounding those that are examined is decreased. X-rays from source1is concentrated (for example, using X-ray lens2) in the zone that includes the current point4, to which the measurement results are attributed and which is located within the target area7of the object5. Excited in this zone secondary scattered radiation (Compton, fluorescent) is transported (for example, using X-ray lens3) to one or more detectors6. By moving the said zone, the target area7of object5is scanned, and based upon population of the intensity values of the secondary radiation, which are obtained with the help of one or more detectors6and which are determined concurrently with coordinates of the current point6, judgment on the density of the object's substance in this point is made. Density values together with respective coordinate values obtained using sensors11are used in the means12for data processing and imaging to build up a picture of substance density distribution in the target area of the object.
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