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photon

 [fo´ton]
a discrete particle (quantum) of radiant energy.

pho·ton (hν, γ),

(fō'ton),
In physics, a corpuscle of energy or particle of light; a quantum of light or other electromagnetic radiation.

photon

/pho·ton/ (fo´ton) a particle (quantum) of radiant energy.

photon

(fō′tŏn′)
n.
The elementary particle of light and other electromagnetic radiation; the quantum of electromagnetic energy. The photon is the massless, neutral vector boson that mediates electromagnetic interactions.

pho·ton′ic adj.

photon

[fō′ton]
Etymology: Gk, phos, light
the smallest quantity of electromagnetic energy. It has no mass and no charge but travels at the speed of light. Photons may occur in the form of x-rays, gamma rays, or quanta of light. The energy (E) of a photon is expressed as the product of its frequency (v) and Planck's constant (h), as in the equation E = hv. X-ray photons occur in frequencies of 1018 to 1021 Hz and energies that range upward from 1 KeV.

pho·ton

(γ) (fō'ton)
physics A corpuscle of energy or particle of light; a quantum of light or other electromagnetic radiation.

photon

a quantum of radiant energy with a wavelength in the visible range of the ELECTROMAGNETIC SPECTRUM.

Photon

A light particle.

photon 

The basic unit of radiant energy defined by the equation
E = hν
where h is Planck's constant (6.62 ✕ 10−34 joule ✕ second), ν the frequency of the light and E the energy difference carried away by the emission of a single photon of light. The term photon usually refers to visible light whereas the term quantum refers to other electromagnetic radiations. See quantum theory; wave theory; troland.

pho·ton

(γ) (fō'ton)
In physics, corpuscle of energy or particle of light; a quantum of light or other electromagnetic radiation.

photon (fō´ton),

n a bullet or quantum of electromagnetic radiant energy emitted and propagated from various types of radiation sources. The term should not be used alone but should be qualified by terms that will clarify the type of energy (e.g., light photon, radiographic photon).

photon

a particle (quantum) of radiant energy.

x-ray photon
a particle of x-ray energy.
References in periodicals archive ?
The company has retooled a Beiqi Foton plant in Beijing to give the joint venture the annual production capacity of 160,000 vehicles.
Brett Soso, the managing director of Amalgamated Automobile Distributors (AAD), a joint venture between the listed Imperial and Bidvest groups that distributes both brands, stated that Chery is to launch three new models in the country in the next 12 months and Foton is to launch one new model.
Dr Dieter Zetsche, CEO of Daimler said, 'The joint venture with Foton Motor represents another key milestone in implementing our China strategy.
Auto Business News-21 July 2010-Beiqi Foton signs JV with Daimler(C)2010 ENPublishing - http://www.
has strong technical force and advanced production equipment, Foton, Hyundai Santa Fe, Tianjin FAW Xiali, Great Wall Motors and other companies supporting suppliers.
Key vendors dominating this space are Deere and Company, Foton Lovol International Heavy Industry Co.
Daimler AG (Daimler) (NYSE: DAI) (FWB: DAI), a Germany-based automaker, has received Chinese government approval to establish a 50-50 truck venture with China-based Beiqi Foton Motor Company (Beiqi Foton).
5L M/T - FOTON Vehicle Model: BJ1043V8JE6-D Cabin: L1800 Single row seat, Tiltable Overall Dimension:5995mmx2000mmx2320mm Inner Dimensions: 3800mmx2000mmx600mm Driving Type: 4x2 Wheel Base: 3360mm Wheel Track(f
Daimler AG (Daimler) (NYSE: DAI) (FWB: DAI) has signed a contract with China-based Beiqi Foton Motor Company (Beiqi Foton) to form a 50-50 joint venture in China, autonews has reported.
In Chinese truck manufacturing industry, enterprises ranking among the top include Sinotruck, FAW Jiefang, Dongfeng Group, Shaanxi Automobile, Beiqi Foton and Bei Ben, among which Sinotruck Group located in Jinan is a world famous heavy truck producing enterprise, and has established industry clusters of truck supporting parts.
10 refrigerated truck manufacturers (Beiqi Foton, Henan Bingxiong, CIMC, Henan Frestec, Zhengzhou Hongyu, etc.