The proper care and feeding of your CVD 700

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Presentation transcript:

The proper care and feeding of your CVD 700

Probe with Geiger Mueller tube Range Switch Meter Check Source

Units of Dose and Exposure Roentgen (R) - unit of exposure - ionization of air by x or gamma rays mR = milliRoentgen RAD (Radiation Absorbed Dose) - energy deposited in material (Gray (Gy) is international unit) rem - (Roengten Equivalent Man) unit of dose equivalent (Avg. US dose 620 mrem) Seivert (Sv) is international unit

Units of Radioactivity Activity – rate of decay - the number of emissions (of radiation) per unit time. dps - disintegrations per second Bequerel = 1 dps Curie = 37,000,000,000 dps Picocurie = 0.037 dps or 2.2 dpm CPM = counts per minute