OS5500 pipeline monitoring system

Product introduction

Ideal for monitoring gamma activity of water and other system fluids flowing continuously through pipes. Potential users include nuclear power plants, waste reprocessing facilities, and DOE mechanism.

Basic components

All Model OS5500 systems include a lead shield and a Model 905-4 (3" x 3") NaI detector. 2.5" thick lead-antimony alloy shield for high strength. Large NaI detectors provide high efficiency for low level counts and are easily calibrated with suitable radioactive sources. Once assembled, there will be a steel shell surrounding the shield to prevent it from shifting. It also provides a safe barrier for lead.

NIM-based systems

A NIM based system consists of a Model 276 Header, Model 672 Amplifier, Model 556 Bias Supply, Model 550A Single Channel Analyzer, Model 871 Counter/Timer, and Model 661 Rate Meter - all housed in a single NIM chassis/power supply (Type 4001A/4002D).

There are two options for the NIM system. They are:

• Model 449 Log/Lin Rate Meter

• Model 850 Quad SCA for simultaneous monitoring of up to 4 regions of interest (ROI)

Detection limit

ORTEC measured the detection limit of the system in the laboratory. These tests were done on systems with and without the check sources installed. A full PC control system was used to determine the MDA of 241Am and 137Cs peaks with checked sources and 241Am, 137Cs and 60Co without checked sources.

Analog/Digital Input/Output Options

Any number of input/output options can be configured for the full PC control version. Typical configurations include:

• User configurable software installer

• PC I/O card

• Isolation module

• Termination wires for connecting devices

• Industrial, Rackmount PCs

• Electronic enclosures

Technical parameters

Model	Description
OS5500-NIM	Pipeline monitoring systems including NIM-based acquisition electronics
OS5500-PC	Full PC control using digiBASE and EMS-ISG software
OS5500-PC-SPEC	Add Spectral Acquisition Capabilities Using GammaVision Software
OPT-1	137Cs Examine sources and associated hardware

OS5500 pipeline monitoring system