126 • Atomic and nuclear physics Geiger counters


Geiger counter Versatile and easily operated Geiger counter. The counting time can be set to 1, 10, 60 or 100 seconds or set to manual start/stop. Counting can run repeatedly with the last completed result visible in the main display while new counts accumulate in the auxiliary display. The GM voltage can be adjusted in 1 V steps from 300 V to 700 V. When turned on, the counter operates silently, but for de- monstration purposes the “authentic” clicking Geiger-counter sound may be turned on. The counter accepts both BNC and Jack type GM tubes. The current consumption of the counter is low, allowing it to run continuously for days on the six AA-cells provided. If the counter is not counting, it turns off automatically after one hour. The counter can also be powered from a mains adapter (not included). With the optional USB adapter, the GM counter can be con- nected to a computer. Another option is a pulse output cable (for further hardware processing).


5136.00 Geiger counter GM Counter with built-in tube


This handheld Geiger counter is a flexible and affordable de- vice – especially developed with schools and other educational institutions in mind. The built-in GM tube is sensitive to alpha, beta and gamma radiation. The counter has 8 fixed count periods (1, 10, 20, 30, 40, 50, 60 or 100 s). Display of dose rate (μSv/h) related to Cs-137. Max, min and average view for mSv/hr and CPS. GM tube voltage can be adjusted between 400 and 700 V, while showing count rate. Use the built-in Geiger tube with its protective cap in place for gamma radiation – or remove the cap to expose the sensitive window when working with alpha or beta radiation. For use with a larger audience, a separate display (IM-159810) can be connected. (Cable IM-159510 is needed for this.) The counter runs on a single 9 V battery.


5135.45 GM Counter with built-in tube


5135.45


5136.00


Passion for Science


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