PPM 9300


The PPM 9300 monitor has been designed and realized to monitor unauthorized radioactive sources transportation or possible contaminations on persons passing through the device.

The system features a portal mechanical structure, with two columns on the sides of the measuring zone, each containing one plastic scintillator detector with a large sensitive area.

Both detectors are shielded on the external side by means of lead plates, in order to reduce the contribution from the environmental background radiation.

The measurement starts when the sensor detects the passage of a person through the portal. The monitor measures the radioactivity level, subtracts the background contribution and compares the net result with an alarm threshold. All measured data and information about alarm and failure statuses are displayed by the software.

The background level is automatically determined by the monitor 

when no passage through the portal is occurring.

The acoustic-luminous beacon installed on the top of the portal informs about the running measurement, the good operation and the alarm status (red lamp and siren). An output connector is available on the top of the portal to control external interlock devices, for example to forbid the passage in case of alarms. Moreover, it is available on request an additional alarm unit for remote signaling.

All alarm events are archived to the PC hard disk, including the event date/time, the measured activity level and the current alarm threshold setting. Similarly, all failure events are logged. If the optional camera is present, the pictures of the alarmed passage are also stored to disk.

All data and pictures can be later reviewed at any time.

Additional Info

  • Main features:
    • Two gamma detectors based on plastic scintillators, PMT and PMT base with digital output
    • Integrated motion sensor for measurement start
    • Alarm events logging
    • Local alarm beacon with remote repetition possibility
    • PC based management, user friendly software mod. 9300-SW-RM, Windows compatible
    • Modular and compact electronics with counters, relays, power supply and HV
    • Easy to use and maintain
    • Strengthened structure, can be fastened to the floor
    • Connectable to interlock devices
    • Available version with network camera for motion detection, measurement start and picture snapshots of alarm events
    • Neutron detection sub-system available
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