Microwave cell phone radio / TV heat lamp
light bulb UV lamp laser x-rays
Ionizing Radiation
Alpha Particles
2 Protons + 2 Neutrons Short Range in Air Not an External Hazard Internal Hazard
Detectors/ Monitors
Detectors/ Monitors
1) Capable of Detecting 2) Efficiency 3) Calibration
Industrial Uses of Radiation
/rpdweb00/source-reduction-management/applications.html
Spent Fuel - Withdrawn from a nuclear reactor following irradiation
High-level waste - Highly radioactive material from reprocessing spent nuclear fuel
Activity
• Decay is a statistical process.
– Cannot predict when a particular atom will decay.
– Can predict when certain amount (%) will have decayed.
Units of Activity
Curie (Ci)
– 1 Ci = 37,000,000,000 dps (3.7 x 1010 dps) or 1 Ci = 2.22 x 1012 dpm