Radiant energy – With infrared or thermal pattern recording – Thermal copying of documents
Patent
1974-06-26
1976-06-01
Dixon, Harold A.
Radiant energy
With infrared or thermal pattern recording
Thermal copying of documents
250321, 250368, G03C 900
Patent
active
039611914
ABSTRACT:
A nuclear imaging system in which a substantially on-axis Fresnel zone plate positioned between a source of nuclear radiation in living tissue and a spatial detector is moved in a predetermined time sequence in synchronism with motion of a bar pattern formed at the spatial detector output to improve suppression of unwanted spatial frequency components and to facilitate production of an image of the nuclear source.
REFERENCES:
patent: 2730566 (1956-01-01), Bartow et al.
patent: 3748470 (1973-07-01), Barrett
patent: 3792273 (1974-02-01), Bergstedt
patent: 3840747 (1974-10-01), Macovski
Barrett Harrison H.
Stoner William W.
Wilson David T.
Bartlett Milton D.
Dixon Harold A.
Pannone Joseph D.
Raytheon Company
Warren David M.
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