ERIC Number: EJ1030312
Record Type: Journal
Publication Date: 2013-Jul
Abstractor: As Provided
Teaching about Natural Background Radiation
Al-Azmi, Darwish; Karunakara, N.; Mustapha, Amidu O.
Physics Education, v48 n4 p506-511 Jul 2013
Ambient gamma dose rates in air were measured at different locations (indoors and outdoors) to demonstrate the ubiquitous nature of natural background radiation in the environment and to show that levels vary from one location to another, depending on the underlying geology. The effect of a lead shield on a gamma radiation field was also demonstrated to emphasize the important role of shielding in radiation protection. The measurements were carried out with a Geiger-Muller (GM)-based dosimeter and a NaI scintillation gamma-ray spectrometer, which are normally available in physics laboratories. Radioactivity in household materials was demonstrated using a gas mantle as an example.
Descriptors: Radiation, Science Instruction, Measurement, Geology, Laboratory Equipment, Science Laboratories, Spectroscopy, Physics, Misconceptions, Scientific Concepts, Environment, Hazardous Materials, College Science, Secondary School Science
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Publication Type: Journal Articles; Reports - Descriptive
Education Level: High Schools; Postsecondary Education; Higher Education; Secondary Education
Authoring Institution: N/A