Data Sheet for LB 1239 Tritium Contamination Probe
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Very high efficiency
Reduced both background and gas consumption
Surface being monitored without coming in contact
Three parallel counting wires ensure a constantly high response probability
The windowless counter tube aperture is 150 mm x 15 mm with an effective area of 22 cm². Electrically it is terminated by five thin cathode wires and mechanically it is enclosed by a fine-mesh nylon grid providing dust protection. The counting chamber is only 5 mm high. This reduces both background and gas consumption and ensures a steady gas flow. Three parallel counting wires ensure a constantly high response probability over the entire aperture area.
Four spacers keep the detector at a constant distance of 2 mm from the surface being monitored without coming in contact with it.
We supply an aperture plate as an accessory which is held in position by magnets. It is used, for example, to measure finger tips.
Flow-through windowless proportional counter tube and detecting tritium on plane surfaces
|Counter tube aperture||150 x 15mm with 3 parallel counting wires|
|Effective area||22cm² (150mm x 15mm)|
|System efficiency||85% - typical|
|Background||1 cps - typical|
|Gas consumption||2000 cm³/min|
|Counting gas supply|
|Air flow components||cylinder valve, double pressure reducer and rotameter|
|Designation basic unit|
Monochrome LCD 192 x 64 pixel, background illumination, electro – luminescence
|Communication||USB [1device; 1 host for memory stick], RS 485|
|Dimensions||160 x 160 x 55 (L x W x D) mm|
|Weight||approx. 1400g (with batteries)|
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Berthold Technologies GmbH & Co.KG
Calmbacher Str. 22
75323 Bad Wildbad
Tel.: (+49) 7081 177 0
Fax: (+49) 7081 177 100