beam angle

beam angle

[′bēm ‚aŋ·gəl]
(electromagnetism)
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
The beam angle can be specified at a tight 20 degrees or a wider 38 degrees for area illumination.
The UVLED's spectral bandwidth at 50 per cent is 12nm (typical); the half-intensity beam angle measures 9[degrees].
Its powerful 80-GHz frequency focused in a narrow 4-degree beam angle with a measuring range up to 393 ft.
Conventionally, IMRT treatment planning starts with beam angle selection and is followed by determination of the intensity profiles for preselected beams using an inverse planning method [2, 3].
The large aspheric lens is designed to give a superior homogeneous light beam over the total beam angle.
A beam angle of 120 degree gives a uniform light distribution across the luminaire and delivers better illumination to the surroundings.
The sharply focused microwave beam angle ensures safe and reliable measurements without any interfering signals even in narrow tanks with baffles.
In conjunction, the scanning beam technology eliminates the time-consuming need to manually insert separate shaping accessories for each beam angle in order to match the beam to the shape of the tumor, concluded the company.
The LEDs' 40-by10 deg beam angle provides subtle illumination, while the fixtures' placement-- approximately 30 cm (1 ft) away from the foliage and flush with the top of a glass encasement--keeps the sources out of sight.
So under various channel topologies, the aim is to investigate the performance of the system parameters to achieve higher SNR and lower bit error rate (BER) without increase in the transmitted power by varying the design parameters such as transmitter beam angle at the transmitter side and field of view (FOV) at receiver side.