The DPM 7001 is a mobile liquid scintillation counter equipped with two photomultipliers, giving it a high counting efficiency and low background noise. It is specially designed for the counting of tritium and carbone-14.

The DPM 7001 is totally innovative in the range of small liquid scintillation counters, as it is the only one equipped with two photomultipliers.

Due to its small size and its light weight (16kg), it can be transported easily on monitoring sites for quick measurements.

It also offers the user many functionalities: Setting of counting window, connection with computer or with thermal printer, spectra, data report in excel format.

Operating principle
The sample is mixed with scintillation liquid and inserted into the counting chamber, equipped with two photomultipliers (PMs).

The two PMs are placed opposite and operate in dual coincidence. Each desintegration is then counted only when it is detected by both PMs in the same coin- cidence time.

Main features
Two counting channels (adjustable window : 0 to 999)
Setting of the counting time, the background noise, and the counting efficiency
Automatic subtraction of the background noise
Automatic stop if the measurement chamber is not properly closed or if quenching level is too high
RS 232 serial port: connection with PC or thermal printer.

Parameter Name	Parameter Value
Type	scintillation
Display	digital
Technology	liquid scintillation (LSC)
Other characteristics	automatic