International
Tables for
Crystallography
Volume C
Mathematical, physical and chemical tables
Edited by E. Prince

International Tables for Crystallography (2006). Vol. C. ch. 7.1, p. 631

Table 7.1.6.2 

U. W. Arndtb

Table 7.1.6.2 | top | pdf |
X-ray phosphors (from Arndt, 1982[link])

Phosphor Type Bulk density No. of photons per 8 keV quantum Max. emission wavelength (nm) Decay to 1% (s)
Produced Collected
ZnS (Ag) Polycrystal 4.1 750 300 450 3 × 10−7 + slow components
Gd2O2S Polycrystal 7.1 500 200 550 10−3
CsI (Tl) Monocrystal 4.5 240 62 580 10−6
These figures are for collection on a photocathode on the opposite side of a fibre-optics face plate, in the absence of a reflective coating.