bone density.
The distance between the crest of one photon wave and the next is called the wavelength. It is a measure of the spatial extent of the wave and determines the color and energy of the photon.
The unit used to measure the energy of an electromagnetic wave is called a photon.
The measure of a photon's energy is its frequency or equivalently, its wavelength. This is determined by the amount of energy carried by the photon, corresponding to the electromagnetic spectrum as visible light, radio waves or X-rays depending on the energy level.
The measure of a photon's energy is proportional to its frequency, according to the equation E = h * f, where E is energy, h is Planck's constant, and f is frequency. Photons with higher frequencies have higher energy levels.
The energy of a photon is determined by its frequency or wavelength, following the equation E = hf, where E is energy, h is Planck's constant, and f is frequency. Photons with higher frequencies have more energy.
Dual energy X-ray absorptiometry, DEXA, is one of the more accurate methods of measuring body fat. Based on the principle that you can measure the density of bones by the amount of photon energy absorbed, this method measures bone mass, lean muscle mass and fat tissue mass.
Per Julin has written: 'Quantitative longitudinal photon absorptiometry in vitro on changes in enamel mineral mass' -- subject(s): Decalcification Technique, Dental enamel
absorptiometry
Dual-energy Xray Absorptiometry is used to measure bone density to detect Osteoporosis.
The distance between the crest of one photon wave and the next is called the wavelength. It is a measure of the spatial extent of the wave and determines the color and energy of the photon.
Bone mineral density testing is a relatively safe procedure. It is similar to an X-RAY or a CT scan, both which have minimal risks associated with the small amounts of radiation emitted. There are five main types of scans to test your bone density including: ultrasound, Dual Energy X-Ray Absorptiometry (DEXA), Peripheral Dual-Energy X-ray Absorptiometry (P-DEXA), Dual Photon Absorptiometry (DPA), and Quantitative Computed Tomography (QCT). As mentioned before the only risk is low level radiation, comparable to a normal X-RAY machine and are considered very safe.
The unit used to measure the energy of an electromagnetic wave is called a photon.
The measure of a photon's energy is its frequency or equivalently, its wavelength. This is determined by the amount of energy carried by the photon, corresponding to the electromagnetic spectrum as visible light, radio waves or X-rays depending on the energy level.
Light is a beam that is shot out of a light source or explosion of gas and photon particles give of that beam which does have a mass but todays technology is unable to measure it.
Evaluation of bone density
A photon is just one particle, having necessarily just one wavelength; it cannot produce a rainbow, which requires a whole range of wavelengths. The narrow bar effect is the result of the instrument used to measure a photon, which has a narrow slit through which the photon passes.
The measure of a photon's energy is proportional to its frequency, according to the equation E = h * f, where E is energy, h is Planck's constant, and f is frequency. Photons with higher frequencies have higher energy levels.