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System Description
86
ICP Source
RF Generator
The Avio 500 instruments use a 40-MHz free-running solid state RF generator. The
RF power from the solid state oscillator is used to ionize the argon in the torch and
excite the atoms of the liquid sample so that they emit energy at their atomic
wavelength in the form of photons. It is displayed in terms of wavelength and
intensity, which are converted to sample concentration.
The RF generator provides a power output of 1000 to 1500 watts. The power output
levels are computer-controlled and may be adjusted in one-watt steps for different
sample matrices.
The RF generator is designed with RF Power Control (RFPC), using a power
control loop which maintains the plasma setting regardless of line voltage
fluctuations and changes in the plasma.
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Troubleshooting
