Bild: Rotem
Two-detector coincidence system for very low emissions in the exhaust stack
The PM-11 coincidence system combines two detectors working in unison to detect very low emissions that occur only inside the exhaust stack, with online isotope identification. The standard PM-11M detector is complemented by a plastic detector that senses positrons within the stack and gives WebiSmarts a trigger signal.
Download product sheet (PDF)All values with references – for tender documents
Specifications checked against the manufacturer’s documents on 2026-10-17
The number after each value refers to the source listed below. Values are as published by the manufacturer; the exact configuration is always confirmed in our quotation.
| Functions | Two detectors in coincidence register only emissions inside the exhaust stack, with online isotope identification; PM-11M is complemented by a plastic detector for positrons1 |
|---|---|
| Detector | PM-11M gamma detector (NaI(Tl), 2 × 2 in), beta detector (plastic scintillator for positron identification) and GM-42 high-range GM detector; plus a flow meter2 |
The data comes from the manufacturer’s published documents. Manufacturers may change specifications; the current configuration and performance are confirmed in the quotation.
The number after each value refers to the source listed below. Values are as published by the manufacturer; the exact configuration is always confirmed in our quotation.
Sensitive NaI(Tl) gamma probe, Rotem’s primary effluent detector in WebiSmarts
Software for collecting and reporting effluent emissions with existing detectors
Web-based area and stack monitoring system with DPU-3 monitors
Wall-mounted neutron detector (Ludlum 42-30H) for area monitoring in WebiSmarts
We help you choose the right configuration, detector and accessories for your measurement task.
Rotem Industries