A method and system are provided for monitoring erosion of system components in a plasma processing system. The metering module comprises a metering valve having a conduit, a compressed air duct and a mixing chamber. The central bend pushes on a boat tower support post section of the hinge and the first end and the second end of the torsion spring push on a support plate which is attached to the receptacle for the boat tower post. The electrical connector and electrical conductor may be actively cooled with a flow of heat transfer medium flowing substantially along a length of the electrical conductor assembly and through the electrical connector to increase the current capacity of the electrical connection. The down-sampled perspective geometry data and the weight table are interpolated dynamically as part of the volume reconstruction process for an object scanned using the given CT device. The voltage across the capacitor is buffered and fed back to the low pass filter when the PLL is switched ON, to reduce time taken by the VCO to generate the oscillator signal.