Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Visual and Verbal Communication (hierarchy name)
4. Visual Works (hierarchy name)
5. visual works (works)
6. [visual works by material or technique]
7. photographs
8. [photographs by technique]
9. [photographs by picture-taking technique]

Narrower term/s

• x-radiographs
• beta radiographs

Anotations

Scope note:

Images produced by a radiation other than light, especially x-rays or gamma rays. Originally these were made on plates that were chemically developed, but the advent of digital technology has replaced these with digital detectors, the images captured are then stored electronically.