We are developing an alternative scintillator with an
integrated converter layer for digital neutron imaging, in
an effort to resolve these issues. The screen is based on pixelated
microcolumnar CsI(Tl), sandwiched between two
layers of a transparent GdF3 or Gd2O3 converter as shown
in Fig. 1. The layers of this screen are vacuum deposited on
aluminum or fiberoptic substrates. The Gd-containing layers
convert thermal neutrons into electrons, which are