Patent ID: 9063238
Filing Date: 2015-06-23
Classification: G01T

Abstract:
1. A digital X-ray detector comprising: a scintillator layer configured to absorb radiation emitted from a radiation source and to emit optical photons in response to the absorbed radiation; a complementary metal-oxide-semiconductor (CMOS) light imager configured to absorb the optical photons emitted by the scintillator layer, wherein the CMOS light imager comprises a first surface and a second surface, wherein the first surface is disposed opposite the second surface, and the scintillator layer contacts the first surface of the CMOS light imager, and wherein the CMOS light imager comprises field-effect transistors and an array of detector elements disposed on a semiconductor layer; a reflective layer disposed on a surface of the scintillator layer opposite from the CMOS light imager, wherein a first surface of the reflective layer contacts the surface of the scintillator layer, and wherein the reflective layer is configured to reflect optical photons emitted by the scintillator towards the CMOS light imager; a first detector cover comprising a first cover surface disposed on a second surface of the reflective layer opposite from the scintillator layer; a first moisture blocking layer disposed between the first cover surface of the first detector cover and the second surface of the reflective layer, wherein a first surface of the first moisture blocking layer contacts the first cover surface and a second surface of the first moisture blocking layer contacts the second surface of the reflective layer, and wherein the first moisture blocking layer blocks moisture from contacting the scintillator layer; a second moisture blocking layer, wherein a first surface of the second moisture blocking layer contacts the second surface of the CMOS light imager, and wherein the second moisture blocking layer blocks moisture from contacting the scintillator layer; and a pair of seals flanking the reflective layer, the scintillator layer, and the CMOS light imager, wherein the pairs of seals extend between the first and second moisture blocking layers, the pair of seals directly contact the reflective layer, the scintillator layer, and the CMOS light imager, and the pair of seals and the first and second moisture blocking layers together encapsulate the reflective layer, the scintillator layer, and the CMOS light imager.