X-ray or gamma ray systems or devices – Beam control – Scanner
Reexamination Certificate
2006-03-21
2006-03-21
Bruce, David V. (Department: 2882)
X-ray or gamma ray systems or devices
Beam control
Scanner
C378S057000
Reexamination Certificate
active
07016473
ABSTRACT:
The invention relates to the field of engineering physics in particular to the technique for detecting X-radiation, and it may be used for photometry, dosimetry as well as for measuring of space energy characteristics of optical-and-ionizing radiation fields with the aim of body X-ray scanning, human body in particular, to identify thereon or therein some highly undesirable objects or substances both for medical and security applications i.e. to prevent thefts and acts of terrorism and to provide the security of residential and other buildings that is in airports, banks and other high-risk areas. The X-ray screening of the body is realized by means of scanning it with a pre-shaped collimated bunch of X-radiation of low intensity due to moving the body and a source of X-radiation provided relative to one another, reception of X-radiation transmitted by the body, shaping and analysis of the image in its electronic form. It is the aim of the present invention to design a method and an apparatus which alongside with being safe and efficient make it possible to provide full body scanning with high precision. The aim set forth has been achieved by shaping the bunch of X-radiation as a single flat beam while X-radiation received at each scanning instant and converted into visible light radiation is in its turn converted into digital electronic signals. The radiation detectors filed are featuring a decreased noise level alongside with increased sensitivity and precision for registration of the intensity of X-radiation and also an extended dynamic range of X-radiation intensity values being registered which makes it possible to provide implementation of the method and the apparatus filed in the most advantageous way.
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Linev Vladimir N.
Semenikov Anatoly I.
Bruce David V.
Jordan and Hamburg LLP
Naychno-Proizvodstvennoe Chastnoe Unitarnoe Predpriyatie “
Song Hoon
LandOfFree
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