Method for erasing remaining radiation image and device

Details Method for erasing remaining radiation image and device Method for erasing remaining radiation image and device

1995-03-23

1996-08-27

Fields, Carolyn E.

Radiant energy

Source with recording detector

Using a stimulable phosphor

G01N 2304

Patent

active

055503861

ABSTRACT:
Disclosed is an improvement of a method for erasing a radiation image remaining in a stimulable phosphor sheet which has stored a radiation image and has been irradiated with stimulating rays to read the radiation image. The improvement comprises a first erasing step of irradiating the phosphor sheet with a first erasing light containing a light portion of wavelength in ultraviolet region; and a second erasing step of irradiating the phosphor sheet with a second erasing light containing no light portion of wavelength in ultraviolet region, said second erasing light and said first erasing light being employed in a ratio of amount of light in the range of 15/85 to 45/55. Devices for erasing radiation image appropriately employable in the above-mentioned method are also disclosed.

REFERENCES:
patent: 4439682 (1984-03-01), Matsumoto et al.
patent: 4584483 (1986-04-01), Kato
patent: 4703178 (1987-10-01), Kageyama
patent: 5013916 (1991-05-01), Umemoto et al.
patent: 5065021 (1991-11-01), Arakawa
Abstract of JP 4-156533, "Radiation Image Erasing Method and Device", Umemoto (5/1992).

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