Radiographic device and method for recovering information from o

Details Radiographic device and method for recovering information from o Radiographic device and method for recovering information from o

1979-04-13

1981-09-29

Smith, Alfred E.

Radiant energy

Automatic/serial detection of similar sources

250455, 250496, 355121, G03B 2704, G03B 4116, G01N 2100, G01N 2300

Patent

active

042925215

ABSTRACT:
A device for recovering information from overexposed regions of image recording emulsions in general, and radiographs in particular includes a light-tight housing the outer surface of which is covered with a layer of lead, a source arranged to project ionizing radiation within said housing, and a removeable cassette which, in use, carries the over-exposed radiograph in close contact with a further film for recording the information. The cassette has a light-tight cover which is displaceable to permit exposure of the further film to an image produced by irradiation of the over-exposed radiograph by the source. The method includes irradiating the over-exposed radiograph, placed in close contact with a further film, by means of a device as aforesaid.

REFERENCES:
patent: 1101468 (1914-06-01), Parfitt
patent: 2184599 (1939-12-01), Jenny et al.
patent: 2890345 (1959-06-01), Muffly
patent: 3121792 (1964-02-01), Mittelstaedt
patent: 3564242 (1971-02-01), Lescrenier
patent: 4104519 (1978-08-01), Oldendorf
patent: 4104528 (1978-04-01), Strax
Freitag et al., "Uber die Technik der Kontaktmicroradiographie," Electromedica, vol. 43, No. 2, pp. 52-54.

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