microbeam
/ˈmaɪkroʊˌbiːm/
noun
- A very narrow, focused beam of radiation or particles, used in scientific research and medical treatments.
- Doctors employed a microbeam to precisely target the tumor without harming nearby tissue.
- The lab uses a microbeam of protons to study how radiation affects individual cells.
- A microbeam of X-rays can reveal the atomic structure of tiny crystals.