Coming Soon to ClickView, Safari Montage, Learn360, and Classroom Video on Demand
Nuclear radiation can be incredibly dangerous, but it can also be incredibly useful to us. The Shedding Light on Nuclear Radiation series teaches students what nuclear radiation is and how humans have harnessed its awesome power.
Episode 1: Atomic Structure
In Episode 1: Atomic Structure, we lay down the foundations on which the series is built: what atoms are made of and how atoms differ. We look at protons, neutrons, and electrons and at isotopes and nuclides.
Episode 2: Alpha Radiation
In Episode 2: Alpha Radiation, we look at what alpha particles are, introduce students to nuclear equations, and show how alpha-emitting substances are used to power space probes and to treat certain types of cancer.
Episode 3: Beta-Minus and Gamma Radiation
In Episode 3: Beta-Minus and Gamma Radiation, we look at what beta-minus and gamma radiation are and at how they are put to good use in medicine and in industry.
Episode 4: Beta-Plus Decay
In Shedding Light on Nuclear Radiation Episode 4: Beta-Plus Decay, we introduce students to beta-plus particles, also known as positrons. Beta-plus particles are a form of anti-matter. Though beta-plus particles don’t really exist in huge quantities naturally on Earth, scientists have learned how to actually make atoms that emit them! Beta-plus particles have now become a major tool for doctors to diagnose a wide variety of cancers.
Episode 5: Half-Life and Activity
In Episode 5: Half-Life and Activity, we examine how quickly radiation is given off by radiation-emitting substances. Some radioactive substances emit lots of radiation in a short amount of time while others emit radiation very slowly. These different rates of emission can be expressed in a quantitative way using the concepts of “half-life” and “activity”.
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