The SS340 is a side-window Geiger-Müller probe for ambient gamma radiation measurement to H*(10).

Dose-rate range is 0.1 µSv/hr - 2 mSv/hr and energy range 45 keV - 2 MeV.

Operating Voltage 450 V
Measurement Range* 0.1 µSv/hr - 1 mSv/hr
Plateau Length 200 V minimum
Dead Time 110 µs
Temperature Range -10°C to + 50°C
Gamma Sensitivity Typically 2 cps/µSv/hr
Energy Sensitivity H*(10) for 45 keV - 1.5 MeV
Housing Connector MHV
Dimensions ∅ 1" x 5" (25 x 135 mm)
Active Area 2" (40 mm) tube length
Weight 3.5 oz (100 g)

* Dose rate probes are set up to read in µSv/hr by default. For measurements in rem/hr, please specify at point of order.



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