Hierarchy classification:

1. top of the aat hierarchies
2. Activities Facet
3. Disciplines (hierarchy name)
4. disciplines (concept)
5. [science and related disciplines]
6. science (modern discipline)
7. natural sciences
8. physical sciences
9. physics
10. optics

Narrower term/s

• polycapillary optics

Anotations

Scope note:

Branch of optics that uses x-rays instead of visible light, concerned with focusing and otherwise manipulating x-rays beams for use in analysis. Since x-rays are strongly absorbed by solid matter, the optics used in the visible and near-infrared portions of the electromagnetic spectrum cannot be used to focus or reflect the radiation.