Ep 3. Alpha, Beta, and Gamma Decay

Nuclear Physics Explained is a fascinating series that explores the world of nuclear physics. In season 1 episode 3, titled Alpha, Beta, and Gamma Decay, viewers are taken on a journey through the three types of radioactive decay.

First, viewers are introduced to alpha decay, which occurs when an unstable atom releases an alpha particle - a particle that contains two neutrons and two protons. This particle is the same as the nucleus of a helium atom, and it is emitted from the nucleus of the decaying atom at a high speed. The alpha particle can cause damage to surrounding tissue, but it is easily stopped by a piece of paper or even the outer layer of skin.

Next, viewers learn about beta decay, which occurs when an unstable atom emits a beta particle. This particle can be either a negatively charged electron or a positively charged positron, and it is emitted with a high speed from the nucleus. Beta particles are more penetrating than alpha particles, but they can still be stopped by a sheet of aluminum or a few centimeters of plastic.

Finally, viewers are introduced to gamma decay, which is the emission of gamma rays from an unstable atom. Gamma rays are high-energy photons, and they are the most penetrating of the three types of radiation discussed in this episode. Gamma rays can only be stopped by thick blocks of concrete or lead, or by special shielding designed to block their high energy.

Throughout the episode, viewers are also introduced to some of the scientific principles that underpin radioactive decay. For example, they learn about the concept of half-life, which is the time it takes for a sample of radioactive material to decay by half. They also learn about the idea of probability, which is used to describe the likelihood of a particular particle being emitted during decay.

Overall, Alpha, Beta, and Gamma Decay is a fascinating exploration of the three types of radioactive decay. Viewers will come away with a deeper understanding of the science behind these phenomena, as well as the risks and benefits associated with nuclear radiation. Whether you're a science buff or simply curious about the world around you, this episode is sure to captivate and inform.