Abstract
Three techniques for determining the composition (x identical to mole fraction of CdTe) of Hg1-xCdxTe are reviewed. These three techniques are infrared transmission (often called FTIR, for Fourier transform infrared) spectroscopy, energy dispersive X-ray analysis (EDX) and optical reflectance (OR). A brief summary of several methods for determining composition in Hg1-xCdxTe is included.