Radiation image storage panel

Details Radiation image storage panel Radiation image storage panel

2007-07-03

2007-07-03

Hannaher, Constantine (Department: 2884)

Radiant energy

Invisible radiation responsive nonelectric signalling

Luminescent device

Reexamination Certificate

active

11238988

ABSTRACT:
In a radiation image storage panel which has a phosphor layer containing energy-storing phosphor particles, the energy-storing phosphor particles is composed of a mixture of a phosphor particle group having a relatively large median diameter and a phosphor particle group having a relatively small median diameter, the former group having a median diameter of 4 to 30 μm, the latter group having a median diameter of 1 to 8 μm, and the mixture having a particle size frequency distribution that satisfies the condition of:in-line-formulae description="In-line Formulae" end="lead"?(x+y)/5>zin-line-formulae description="In-line Formulae" end="tail"?in which x is a size frequency (%) at the peak in a larger range of the size frequency distribution curve, y is a size frequency (%) at the peak in a smaller range, and z is the lowest size frequency (%) in the range between the two peaks.

REFERENCES:
patent: 4782237 (1988-11-01), Teraoka et al.

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