Beam condensor

Low transmission sample (microsample or optically opaque material) 2- to 8-min scan, with a spectral resolution of 4-8 cm , providing a S/N of 500 1 or better. The use of a MCT detector is suggested for samples with an overall transmission of 5%T or less, especially in the absence of an optimizing accessory (such as a beam condensor for microsamples). When using a MCT detector, it is important that the potential for nonlinearity is appreciated. Also, it is important to be aware of the occurrence of detector saturation, which will lead to extreme nonlinearity, and spectral distortion. 

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