Description

High resolution spectroscopy systems require several connections involving the preamp, bias supply and spectroscopy amplifier. Under normal operating conditions this does not present a problem, and optimal performance is achieved.

However, in some applications these interconnections are extraordinary in terms of length, routing or environment. Under such conditions systems are susceptible to oscillations or noise due to ground loops and to EMI (electromagnetic interference) from sources such as raster displays, power supplies, computers, etc. This noise interference will degrade the performance of most high resolution detector systems.

CANBERRA has several accessories which minimize these problems without affecting cable lengths, routing or system configuration. An application note entitled "System Considerations with High Resolution Detectors" will be provided when any of the Detector System Loop-Buster Accessories are ordered.

The following units are available individually from our Loop- Buster tool kit.

Model Desription LB1500 Cable Transformer - 93 W BNC cable with ferrite core to reduce high frequency interference. Use between preamplifier and amplifier.	Model Desription LB1502 Schottky Clamp Box - Prevents oscilloscope overload when using high sensitivity settings for precise P/Z adjustments.
Model Desription LB1501-X Ground Loop Eliminator (GLE) Preamp Power Cable - Preamp power cable with diode interrupted ground to eliminate ground loop. X=length (10 ft or 15 ft are standard).	Model Desription LB1503 Bias Isolation Box - Provides resistive isolation of ground circuit between high voltage power supply and preamp to reduce ground loop induced noise.