X-ray or gamma ray systems or devices – Specific application – Absorption
Reexamination Certificate
2004-06-25
2008-09-09
Kiknadze, Irakli (Department: 2882)
X-ray or gamma ray systems or devices
Specific application
Absorption
C378S062000
Reexamination Certificate
active
07424094
ABSTRACT:
Gamma radiation imaging system for non-destructive inspection of the luggage contains a DR sub-system, which obtains the projected image of the luggage by translationally scanning, and a CT sub-system, which obtains the tornograph image of the luggage by rotating scanning. Said DR sub-system includes a fixed gantry, a conveyor system, a radiation source mounted on the fixed gantry, front and back collimators, and the array detector. Said CT sub-system includes a rotating gantry, a conveyor system, a radiation source mounted on the rotating gantry, front and back collimators, and the array detector, wherein, the radiation source in said CT sub-system is192Ir or75Se radioactive isotope gamma source with high specific activity. Said gamma source is enclosed in a shield chamber with a projecting opening. The shield chamber is mounted on said rotating gantry. Said array detector is adapted for detecting gamma ray of192Ir or75Se radioactive isotope; The radiation source in said DR sub-system is192Ir or75Se radioactive isotope gamma source with high specific activity, said gamma source is enclosed in a shield chamber with a projecting opening. The shield chamber is mounted on said fixed gantry. Said array detector is adapted for detecting gamma ray of192Ir or75Se radioactive isotope.
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An Jigang
Liu Yisi
Wang Liqiang
Wu Haifeng
Wu Zhifang
Kiknadze Irakli
Occhiuti Rohlicek & Tsao LLP
Tsinghua University
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