Wavelength isolators

The wavelength used is dependent on the element used in the x-ray source. A common element for the source is copper, and the wavelength isolated from the copper emission is 1.539 A. See Workplace Scene 10.1. 

The photometer A simple instrument that uses absorption or interference filters for wavelength isolation and a photoelectric device to measure the radiant power. 

The block diagram of a typical ICP emission spectrometer is shown in Figure 28-14. Atomic or ionic emission from the plasma is separated into its constituent wavelengths by the wavelength isolation device. This separation can take place in a... 

The wavelength isolated by the monochromator is directed onto the detector. This is normally a photomultiplier tube producing electrical current proportional to the light intensity. 

Figure 4.1.1. Generalized NIR spectrometer having three basic parts lamp, wavelength isolator, and detector...

TABLE 4.1.1. NIR Spectrometers Classified According to the Wavelength-Isolating Technology... 

Figure 4.1.9. Schematic of a tilting-fllter spectrometer. The three tilting filters provide for wavelength isolation in three regions of the NIR spectrum.

Blaedel, W. J. Boyer, S. L., Programmahle Monochromator for Accurate High-Speed Wavelength Isolation , Anal. Chem. 1973, 45, 425-433. 

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