Epidemiological studies involving a large cohort of individuals exposed to ionizing radiation will provide us with a full picture as to the true effects of radiation exposure from interventional cardiology.
At frequencies above the microwave region, with a few prominent exceptions (see bremsstrahlung; synchrotron radiation), the classical picture of an accelerating electric charge producing an electromagnetic wave is less and less applicable.
That light, in the form of microwaves, now bombards Earth from all directions, allowing telescopes sensitive to that radiation to take pictures of the 300,000-year-old universe.
To try to get a clearer picture of radiation levels, the village has begun measuring radiation in tap water and in the air above the village hall parking lot.
In the quantum picture, electromagnetic radiation has a dual nature, existing both as Maxwell's waves and as streams of particles called photons.
Computations and experimental findings in the paper coherently compose a realistic picture of radiation damage.
As John Stachel notes, "It was indeed, his reliance on the correspondence principle that seems to have been a principal motive for Bohr's distrust of the photon concept and his related willingness to give up energy-momentum conservation to save the classical electrodynamic picture of radiation" (Stachel 2009, p.72).
Simple atomic scale pictures of radiation induced surface damage and its chemical etching are developed using measurements of radiation induced swelling of CR-39 detectors and nuclear track parameters.
Portable television equipment in the field proved valuable for sending back to headquarters, by antenna radiation or coaxial cable, a picture of any scene of operations such as a river crossing.
Only with Anderson's discovery of the positron did the picture become clear: radiation, a photon, can produce electrons and positrons in pairs, provided the energy of the photon is greater than the total mass-energy of the two particles that is, about 1 megaelectron volt (MeV; 106 eV).
