Geiger Counter Shop

What would make a good beta or gamma radiation source?
I got a Geiger Counter and before getting a decent one I want to first get it into this one. The Geiger Counter I have can only detect beta and gamma radiation. So I need to know any type of rocks or objects from a shop or something with a beta/gamma source that would make a good collective.
A mantle for a Coleman lantern is a great source. You can find them at Walmart or any sporting goods store
WMD Geiger Counter part 1 of 2 guitar effects pedal demo w SG and Dr Z amp
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Radiation Alert INSPECTOR Microprocessor-Based Ionizing Radiation Detector $536.75 The Radiation Alert Inspector is a hand-held, microprocessor-based radiation detector that detects potentially harmful ionizing alpha and beta particles, and gamma and x-ray radiation, has a four-digit, LCD digital display of millirem (mR) per hour, and function indicators. This radiation detector can detect low levels of the four main types of ionizing alpha and beta particles, and gamma rays a… |
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RADEX RD1503 – Radiation Detector (ENG version) $149.95 Excellent geiger counter for the money! Designed for evaluation of ambient dosage of gamma radiation, which can be done by ordinary people in domestic environment (homes, office, food products, construction materials, soil, etc.). Also, the instrument can be used by industrial personnel, working with ionizing sources of radiation. Moreover, the instrument can detect objects, polluted by beta acti… |
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NukAlert™ nuclear radiation detector / monitor (keychain attachable) alarm $174.95 Carried everywhere your keys go, NukAlert’s 24/7 constant radiation monitoring, alerts you if you are being exposed to dangerous levels of radiation. the NukAlert is a compact key chain attachable radiation Monitor & alarm. Monitoring is always on, using a built in long-life (ten+ year) battery. The devices range encompasses higher emergency radiation levels. There are 10 easily recognizable ‘chi… |
