narrow beam

narrow beam

[¦nar·ō ′bēm]
(physics)
In measurements of the attenuation of a beam of ionizing radiation, a beam in which the scattered radiation does not reach the detector.
References in periodicals archive ?
A narrow beam lens has been used to highlight specific objects such as the lotus on the Jaipur Column and a wider beam lens to spread light on a larger area.
The displacement of these narrow beam vessels, resulting from the upsizing of services through the canal, has driven a change in deployment patterns in this sector and also contributed to a record level of containership demolition.
To detect smoke, the transmitter emits a narrow beam of infra-red (IR) light to the receiver head.
Micropilot NMR81 utilises 79 GHz technology to generate a narrow beam angle of 3-deg or 4-deg.
Ideally you would want a long, narrow beam to run almost parallel to the surface you are grazing.
The SmartSonic ultrasonic transmitter features a high efficiency, narrow beam design that eliminates unwanted echoes and enhances operation in difficult applications, according to the company.
A laser emitter has a very narrow beam pattern and although it can travel a very long way, small amounts of vibration will move the beam off the receiver and break the beam.
The series comes from Total Wipeout producers Endemol and includes tough physical challenges such as riding a tiny bike at speed along a very narrow beam and shaking velcro croissants off a velcro bodysuit.
According to the company, HyperSound technology is a fundamentally new approach to sound delivery that generates a highly directional, narrow beam of audio in the air, much like the way a flashlight directs a beam of light.
A small fraction of gargantuan stars end their lives in spectacular explosions that send a narrow beam of gamma rays, the universe's highest-energy radiation, darting through space.
A pair of DF200AS can be mounted on 26-inch centers, which will allow them to fit on offshore boats with a narrow beam.
Transmitting at a frequency of 2 6 GHz with a narrow beam angle of 8 degrees, the MP Series radar is consistent and accurate in dusty environments.