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Phosphors PHOSPHORS Phosphors

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X - Ray phosphors
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X-ray phosphors and super-fast X-ray phosphors for optical ceramics
X - ray phosphors - application: roentgenogram, medicine diagnostics, computed tomography    Are sensitive to low-, mid-, and high-energy radiation. When used in medicine diagnostics ( roentgenogram ), they lower an irradiation dose of a patient by a factor of 3-5. May be prepared in the form of blocks of transparent ceramics and used in systems of computed tomography.
Table 1. Characteristics of X-ray phosphors.
Mark Density, g/cm3 Spectral
maximum, nm
Energy
output, %
Persistence time, ms Average particle
size
d50,
microns
down to 10% down to 1%
Re-383 5,00 383
417
16-18 1,8 12 4-6
Re-430 6,50 430 8-10 10-3 10-2 10
Re-510 7,35 510 8-9 10-2 10-1 8
Re-543 5,78 543 12-14 1,4 12 14-20
Re-544 7,38 544 18-20 1,6 15 10-16
Re-545 8,45 545 10-12 1,5 15 10
Re-540 6,30 535 8-10 10-4 10-3 2-20
Re-611 6,50 611 6-10 1,2 10 10
Re-520 5,5 520 10 10-3 10-2 20
Re-540 8,8 540 10 10-3 10-2 20
Changed:
20101

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