Making a Geiger Muller radiation counter

Through the design and implementation of the gamma ray detector we constructed a handheld device, powered via a 9V battery, capable of detecting primarily gamma rays, utilizing a Geiger Muller tube. In order to cause ionizing events within the gas filled chamber of the tube a high voltage was required. The output of the tube produced a current pulse that with proper manipulation was outputted to a LCD to print the Counts per Second of radiation activity. The GM tube presented our greatest difficulty in determining both what the output of the tube would look like and how reactive it would be to the radiation source. After integrating each members' subsystem, we were able to simplify our original design and package the components in a clear box, capable of being viewed from any angle, to allow high school students the opportunity to have an immersive experience