Hankel transform is a type of mathematical calculation that helps scientists to figure out the properties of certain shapes.
Imagine if you wanted to know the shape of a sphere (like a beach ball). To figure out the shape, you first draw the outline of the sphere on a piece of paper. After you draw the shape, you can use the Hankel transform to calculate all the details of the sphere, like its size and how curved each part of the sphere is. With this information, you can measure the size and shape of the sphere.