X-Rays

You've probably had an X-ray examination of some part of your body. Health care professionals use them to look for broken bones, problems in your lungs and abdomen, cavities in your teeth and many other problems. For example, mammograms use X-rays to look for tumors or suspicious areas in the breasts.

X-ray technology uses electromagnetic radiation to make images. The image is recorded on a film, called a radiograph. The parts of your body appear light or dark due to the different rates that your tissues absorb the X-rays. Calcium in bones absorbs X-rays the most, so bones look white on the radiograph. Fat and other soft tissues absorb less, and look gray. Air absorbs least, so lungs look black.

X-ray examination is painless, fast and easy. The amount of radiation exposure you receive during an X-ray examination is small.

External Resources

Moon-Rays, The - Midwestern surf band combining the elements of sci-fi and exotica. Includes CD and gig information.

Lorenz, Hilary - She incorporates photomicrography, X-rays, and elements of fifteenth-century scientific research on human circulation in her digital photography, intaglio and relief printmaking.

Investigating Bellini's Feast of the Gods - X-rays and infrared images of 1512 Italian Renaissance masterpiece reveal hidden underpaintings: Bellini, Dossi, & Titian.

Velocity of sound in some Biological Material - Ultrasound physics. Parameters. Differences between X-rays and ultrasound.( Gonzalo Diaz M. M.D.)

Ordela - Position-sensitive proportional counter systems for the detection of X-rays, neutrons, and charged particles.

Ti Ameny Net - An ancient Egyptian mummy displayed at the Ancient World Gallery in North Court at the University of Richmond in Virginia: CT scans, x-rays, and analyses.

X-ray Optics and Microscopy at Stony Brook - Research describing use of coherent soft X-rays for optics experiments, including Fresnel zone plates, to produce the smallest focused spot of electromagnetic waves for studies of biological and materials science specimens.

Electromagnetic Radiation Spectrum Poster - A poster of all known ranges of EMR including gamma rays, x-rays, ultraviolet light, visible light, infrared, microwaves, radio waves.

Experiment shows gamma-rays are not photons - An experiment using Cd109 gamma-rays violates principles of the photon. Extension of Planck's loading theory is applied to many famous experiments to explain illusion of particles.

Colutron Research Corporation Home Page - Manufactures ion sources, ion guns and components. Also, high resolution beam imaging systems for ion, electron, and neutral beams as well as x-rays.

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