Coefficient Of Linear Thermal Expansion The fractional change in length of a material for a unit change in temperature Measured in inch/inch/°F or cm/cm/°C
In a CCD, the process of transferring charge from pixel-to-pixel is not 100% efficient This causes a degradation in correspondence between detected charge measured in the CCD output, and the original X-ray energy The charge transfer loss and noise is therefore spatially and temporally changing Charge transfer efficiency (CTE) is the term to describe this less than perfect efficiency (measured per pixel normally)
Coefficient of Thermal Expansion (also called Temperature Coefficient of Expansion, TCE) A parameter used to rate the extent to which a material expands when its temperature is raised or contracts when its temperature is lowered Thermal stresses occur when a material is constrained during expansion or contraction
A tern used to characterize the amount of charge successfully moved from pixel to pixel in a CCD It is usually expressed as a fraction such as 0 99999X per pixel transfer, meaning that 99 999X% of the charge is moved on each time; X stands for a number less than nine