Model 943 Series

Two end window materials are used for the Model 943 Series Beta detectors. The mylar end window is used for replacement of existing beta detectors with similar windows. The beta detectors with titanium end windows offer greater durability, significantly reduced noble gas absorption and ease of decontamination. The beta detector has preamplifier circuitry located in the interior of the overall protective housing. The preamplifier provides pulse conditioning and cable driving capabilities to match the input characteristics of the instruments used to monitor detector output. The detector is supplied with an integral eight foot cable that normally terminates in a junction box located within a sampling system. For operation in applications where a radioactive check source cannot provide the desired response, a Light Emitting Diode (LED) may be embedded in the detector. The LED is driven by a pulser circuit, located in the detector junction box, and can be adjusted to simulate the photonpeak of the monitored isotope of interest.

• Beta Scintillation Detectors
• Used on Process Gas and Particulate Channels
• For Use with Model 942A Series or 960 Series Electronics

The detector can be used with the Universal Digital Ratemeters or with the Scaler Module 960SF. Ratemeters are used with beta detectors in small single channel digital monitoring systems while scaler modules and detectors are primarily used in multiple channel digital monitoring systems.