Microcolumnar lanthanum halide scintillator, devices and methods

摘要

Evaporation methods and structures for depositing a microcolumnar lanthanum halide scintillator film on a surface of a substrate. A radiation detection device including a doped lanthanum halide microcolumnar scintillator formed on a substrate.

主权项

1. A method of forming a microcolumnar lanthanum halide scintillator film on a surface of a substrate, the method comprising:
providing a hot wall evaporation apparatus comprising an evaporation chamber having one or more chamber walls disposed between a positioned substrate and a scintillator source material; and depositing a microcolumnar lanthanum halide scintillator film on a surface of the positioned substrate by a process comprising applying heat to the evaporation chamber so as to vaporize scintillator source material for film deposition, wherein applying heat comprises maintaining a temperature relationship of Twall>Tsource>Tsubstrate for at least a portion of the deposition process, and wherein more than 90% of the deposited scintillator source material is deposited on the substrate surface.