Radiant energy – Invisible radiation responsive nonelectric signalling – Luminescent device
Patent
1983-02-04
1985-02-12
Anderson, Bruce C.
Radiant energy
Invisible radiation responsive nonelectric signalling
Luminescent device
378184, G01J 158
Patent
active
044993811
ABSTRACT:
A laminate for conversion of X-rays into radiation that darkens X-ray films has a flexible plate which is disposed between a fluorescent layer and a ferromagnetic layer. The latter enables the plate and the fluorescent layer to bear against an X-ray film in a cassette or at an exposure station for X-ray films by being attracted to a plate-like permanent magnet. The ferromagnetic layer is permanently bonded to the respective side of the flexible plate or is simply confined between the plate and an outer layer which is permeable to X-rays and whose marginal portions extend beyond the ferromagnetic layer and are bonded to the respective marginal portions of the plate. Alternatively, the ferromagnetic layer can be inserted into a sealable envelope or bag which is bonded to the respective side of the plate, namely, to that side of the plate which away from the fluorescent layer.
REFERENCES:
patent: Re30045 (1979-07-01), Green
patent: 1610171 (1926-12-01), Sheppard
patent: 2407596 (1946-09-01), Wirshing et al.
patent: 2409162 (1946-10-01), Staud
patent: 2950222 (1960-08-01), Hinson
patent: 3177361 (1965-04-01), Holowaty et al.
patent: 3704369 (1972-11-01), Paidosh
Agfa-Gevaert Aktiengesellschaft
Anderson Bruce C.
Kontler Peter K.
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