https://en.wikipedia.org/wiki/Radiosurgery https://en.wikipedia.org/wiki/Radiosurgery there is a subtype called Gamma Knife which uses a large collection of emi

https://en.wikipedia.org/wiki/Radiosurgery https://en.wikipedia.org/wiki/Radiosurgery there is a subtype called Gamma Knife which uses a large collection of emitters to effectively target a location while keeping other locations under a specific radiation threshold.