nuclear physics
atomic physics
nucleonics

Here he started working on nuclear physics, a new field for him.

Well, in the field of nuclear physics, we still need to understand a lot.

His work was important in the science of nuclear physics.

"It's not like you have to go back to school and take nuclear physics."

His scientific work was in the area of nuclear physics.

He is remembered as a leading figure in the development of nuclear physics.

Did you teach yourself nuclear physics, or just make it all up?

He has been doing research in the realm of nuclear physics for over 20 years.

But in nuclear physics, this leads to a real problem.

Let us also remember that money is like nuclear physics in reverse.