Nuclear medicine or PET scanning (Positron Emission Tomography)
Explanation:
Not super sure what your question is looking for but I think it can be either. PET is a technology used in the nuclear medicine field, and nuclear medicine is a broad field of using the technology the question described.
We know that g = LcosΘ <span>where g, L and Θ are centripetal gravity length, and angle of object </span><span>ω² = g/LcosΘ </span> <span>ω = √(g / LcosΘ) </span>