Linked from
The 32 pages that link to X-ray, each with the reason it gives.
Computed tomographyNarrower topic: CT uses X-rays as its penetrating probe.
X-ray fluorescenceNarrower topic: Both the excitation beam and measured fluorescence are X-rays.
Manne SiegbahnNarrower topic: They are the radiation Siegbahn’s spectroscopy investigated.
X-ray detectorNarrower topic: X-rays are the photons the detector must register.
Charles BarklaNarrower topic: Barkla used X-rays to investigate how radiation interacts with matter.