beam divergence

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beam divergence [′bēm də‚vər·jəns]

(optics)

The angle between points on opposite sides of a light beam at which the irradiance drops to 1/e(0.37) times its maximum value.

(physics)

The angular spread in the directions of the components of a beam of particles or radiation.

beam divergence

(Brit.) Same as beam spread.

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No references found			The nearly monochromatic property, the very confined beam divergence over great distances, and the energy of a laser also can have an effect on the eye. Disruptive and destructive effects of laser illuminations by Begert, Matt; Campbell, Lisa; Heal, Sid / The FBI Law Enforcement Bulletin Target dependent neutron scattering effects introduce changes in beam divergence or path length that behave like target dependent magnetic field rotations. Parity-violating neutron spin rotation in a liquid parahydrogen target by Markoff, Diane M. / Journal of Research of the National Institute of Standards and Technology Different machines are used for different fixture arrangements governed by blank size and radiation beam divergence requirements," Sweat explains. Machining, programming, networking converge for cancer treatment by Modern Applications News			Beam beam anchor beam angle beam antenna beam approach beacon system beam attack beam attenuator beam bearing plate beam blocking beam bolster beam bottom beam box beam bracketing beam brick beam bridge beam building beam casing beam ceiling beam clip beam column beam compass beam coupling beam current beam cutoff angle beam diameter beam divergence beam drop beam edge beam efficiency beam encasement beam expander beam extractor beam fill beam filling beam form beam hanger beam holding beam hole beam infilling beam iron beam lead beam link beam lobe switching beam magnet beam parametric amplifier beam pattern beam pocket beam power tube beam pumping unit beam recording beam resonator			beam box beam bracketing Beam Break Up beam brick Beam Bridge Beam bridges beam building beam casing beam ceiling Beam center Beam Change Trigger beam clamp beam clamp beam clamp beam clamp beam clip beam collimation Beam column Beam compass Beam compass beam compasses beam compasses Beam Congruency System Beam Correction Factor beam coupling beam current Beam Current Monitor beam cutoff angle Beam diameter Beam diameter beam divergence beam down beam down beam down beam down beam drop beam edge beam efficiency Beam emittance beam encasement Beam engine beam engines Beam Equivalent Pressure beam expander Beam Experiment Aboard Rocket beam extractor beam fill beam filling beam form Beam Former beam forming Beam Forming Electrode Beam Frequency Network Beam Gas Path Length Beam Global Wine & Spirits beam hanger beam hardening beam holding

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