Gd2O2S: Tb-screens

Scintillation screens for very high resolution measurements.

Gd has highest cross capture section to make scintillation thicknesses of 10 µm and below possible to reach highest possible resolution. The emission maximum at 549 nm matches very good with standard CCD-Cameras.

6LiF / Gd2O2S:Tb-screens

New development to increase the light output of the scintillator with still very high resolution. Emission maximum at 549 nm. The addition of 6LiF give a 30-50% higher brightness with same resolution!

Isotopically enriched 157-Gd Scintillation screen

In 2015 Pavel Trtik from PSI was able to develop as part of the neutron microscopy project a 157Gd scintillator with outstanding resolution. These scintillators are currently the best on the market in terms of resolution. Details can be found in the publication (Nucl. Inst. Meth. A, 2015, 788, 67 ).

Standard scintillation screens based on Gd2O2S:Tb or Gd3Al3Ga2O12:Ce:

Base materialEmissionDimensionThicknessComment
157Gd2O2S:Tb447 / 549 nm (blue-green)11 x 11 mm2~5 µmBest resolution
Gd2O2S:Tb447 / 549 nm (blue-green)up to 200 x 200 mm210 up to 40 µmVery high resolution
Gd2O2S:Tb / 6LiF (20%)447 / 549 nm (blue-green)up to 200 x 200 mm210 up to 50 µmVery high resolution with enhanced intensity
Gd3Al2Ga3O12:Ce535 nm (green)up to 200 x 200 mm210 up to 100 µmVery high resolution and very short decay (~30 µs)