Wilson Cloud Chamber-Chapter # 21|| 12th Class Physics || 2nd Year Physics

Описание: Welcome to this exciting video about the Wilson Cloud Chamber! Have you ever wondered how scientists study the path of subatomic particles? Well, the Wilson Cloud Chamber is an amazing invention that allows us to visualize the path of these particles.

Invented by the Scottish physicist Charles Thomson Rees Wilson in 1911, the Wilson Cloud Chamber is a device used to detect ionizing radiation. It works by saturating the chamber with alcohol vapor or other suitable supersaturated gases. When a charged particle passes through the chamber, it ionizes the vapor, causing it to condense into tiny droplets that form a visible trail along the path of the particle.

In this video, we will discuss the construction, working, principles, uses, and results of the Wilson Cloud Chamber. You will learn how this invention has revolutionized our understanding of subatomic particles and their properties. We will also explore the cloud chamber's significance in various fields such as nuclear physics, particle physics, and astrophysics.

Whether you're a student studying physics or just curious about the science behind the Wilson Cloud Chamber, this video will provide you with all the information you need to know. So, sit back, relax, and let's explore the fascinating world of the Wilson Cloud Chamber! The chamber was invented by Charles Wilson in the mid-1890s and was originally used for creating small clouds and studying the optical phenomena related to them, hence the name cloud chamber. Subsequent studies and observations made using the apparatus led him to realize that the chamber could also be used to observe the movement of subatomic particles. Nearly 20 years later, Wilson perfected his design and developed one of the world’s first particle detectors.

Wilson’s original cloud chamber consisted of three individual sub-chambers (sensitive chamber, control chamber, and vacuum chamber), a water-sealed piston, and a few valves. The sensitive chamber was a sealed enclosure filled with saturated air (air with 100% relative humidity, i.e, the air is holding the maximum amount of water vapor it can at the prevailing temperature and pressure). The passage of subatomic particles could be seen in this section.

Next, the control chamber housed the piston on one end and a valve (which opened to the atmosphere) on the other. Upon opening the valve, air would rush into the control chamber and push the piston upwards, thereby compressing the gas in the sensing chamber.





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