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Smart Q secondary sensor range

Ranges:
Counts per second: 0 - 10,000 cps
Resolution: 1 cps

Accumulative count with zero reset: 0 - 65,535 count
Resolution: 1 count

Pulse Output 10 - 100%

The Geiger Müller Counter is supplied with a steel rod for fixing to a clamp (ring) stand. It is equipped with a built-in GM tube and integral high tension power supply. A yellow LED power indicator shows that an operating voltage is supplied to the Counter, and a buzzer that emits an audible signal for each radioactive pulse that is recorded.

The GM tube's window is made of a very thin and delicate material, which is easily destroyed. For this reason it has been equipped with a protective cap that may be left on except when measuring Alpha radiation.

Technical specification for the GM Tube window:
Thickness: 1.5 to 2.0 mg/cm2
Useful diameter: 9.14mm
Material: Mica
Gas filling: Neon, Argon, and Halogen

Use the Counts per second range for investigations to determine half life and absorption of radiation by different materials.

Use Open Count for recording background count. Pressing the button on the Smart Q sensor housing starts the count. Pressing the button again, hold for a second and release, resets the count to zero.

Pulse Output - Each radioactive particle will generate one voltage pulse. The occurrence of the pulse is recorded to show the randomness of atomic decay. This range requires fast data capture and is therefore suitable for use with EasySense Q Advanced, EasySense Link and EasySense Advanced and Fast. This range is not suitable for use with the Graphical Logger Pack, Flash Logger, EasySense Q3 or Q5.

Measurement procedure:
Radioactive sources used in schools are usually weak, but care must be taken in handling them. An authorised person must be in attendance. Ensure all local rules and recommendations made in any relevant Safety Data Sheets are complied with. Prepare a risk assessment before the experiment or activity is carried out.

Safety:
If handling radioactive sources, always use tongs or other holder. Do not hold a source close to yourself or anyone else. Wash your hands afterwards. Sources should be stored appropriately in a locked and labelled store.