Radiant energy – Invisible radiant energy responsive electric signalling – With radiant energy source
Reexamination Certificate
2006-03-21
2008-09-23
Porta, David P. (Department: 2884)
Radiant energy
Invisible radiant energy responsive electric signalling
With radiant energy source
Reexamination Certificate
active
07427761
ABSTRACT:
Discriminating radioactive nuclides of a gamma ray source and nondestructively measuring an image concentration and spatial distribution of a gamma ray by radioactive nuclides. A visualizing apparatus having a container1including a gamma ray source2; a gamma ray detector7around the container1which detects gamma rays through a collimator6; a gamma ray detection signal processing device9which processes a gamma ray detection signal measuring energy and counted value thereof; an energy discrimination processing device10which performs discrimination and intensity analysis of radioactive nuclides by performing spectrum analysis of gamma ray energy and intensity measured for each unit time or position; an imaging calculation processing device11which forms images of concentration and space distribution of the gamma ray source for each discriminated radioactive nuclide; and an image display device12which performs visual display based on a result of the calculation processing.
REFERENCES:
patent: 3878373 (1975-04-01), Blum
patent: 6792069 (2004-09-01), Hirabayashi et al.
patent: 2003-194740 (2003-07-01), None
Ara Kuniaki
Hayashida Hitoshi
Hirabayashi Masaru
Ohtaka Masahiko
Japan Atomic Energy Agency
Kim Kiho
Porta David P.
Wenderoth , Lind & Ponack, L.L.P.
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