This Radioterapia mikroskopowa icon is made in Material Design style developed by Google. This style is based on extremely simplified shapes, thin two-pixel lines, and is optimized for 24x24 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 4,300 icons, all in the same style and quality.
It's a logo of a slab table one lays on for radiation therapy with one end facing out and the other going towards a circular area. It's a smaller circle inside a larger one and the smaller circle has many dots inside of it.