BOX COUNTER

The BOX COUNTER system is designed to perform a fast gamma contamination check of laundry, waste bags, tools and other small objects, to be placed inside a shielded measurement chamber (M.C.).

Measurement results, alarms and malfunctions are visualised by the control console and also signalled by a built-in alarm column. A digital scale allows to acquire the weight of the objects to be measured.

The measurement chamber is accessible through 4 side doors.

BOX COUNTER is equipped with large plastic scintillators, shielded with 10 mm lead sheets to minimize the environmental radiation background. Up to six detectors can be installed: 4 in the doors, 1 in the top and 1 in the bottom side. The system can reach an MDA as low as 4 kBq (Cs-137) in 10 seconds. The available versions are:

• 2U – two plastic detectors each installed in a side door
• 4U – four plastic detectors each installed in a side door
• 6U – six plastic detectors, four of which installed in the side doors, and two in the top and bottom of the M.C.
• 6U NORM – five plastic detectors in the side doors and in the bottom of the M.C., and a 2”x2” NaI(Tl) detector with MCA in the top

BOX COUNTER can be easily moved and relocated by the user thanks to 4 pivoting, lockable wheels. The internal and external surfaces of the stainless steel mechanical structure are specifically designed to be easily cleaned and decontaminated.

The control console consists in a touch-screen PC installed on the top of the system, equipped with an ELSE NUCLEAR management software.

The software allows to:

• start the measurements, analyze, display and save the measurement data
• set the operational parameters such as alarm thresholds, detector enabling and calibration factors
• activate, mute and reset the alarm and malfunction statuses through relay switches
• perform a quality check to verify the proper functioning of the system