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x-ray - Everything2.com


x-ray
The basic science
Part of the electromagnetic spectrum, with wavelengths ranging from 10
-8 metres to around 10
-11 metres. (Or, if we are talking particle energies, 100 to 100 000 eV).
So-called ‘soft’ x-rays are in the lower energy (longer wavelength) part of this range, while hard x-rays are in the shorter wavelengths (and hence higher energies).
Medical x-rays are usually around 10
-10 metres.
In general, X-rays are the highest energy photons which can still be focussed and bent (albeit with great difficulty) to make images. They are also of wavelengths comparable with atomic dimensions, and so can be used to investigate the composition and structure of atomic lattices (crystals). Furthermore, because of their small size and high energy, they can pass through many low-density materials, unimpeded, so are useful for viewing internal structures of opaque (to visible light) objects. ....

Wurzburg Physico , Wilhelm Conrad , Society On , Wurzburg Physico Medical Society , Lord Kelvin , X Ray Diffractionx , வில்ஹெல்ம் கான்ராட் , சமூகம் ஆன் , ஆண்டவர் கெல்‌விந் ,