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collimator
collimator (ˈkɒlɪmeɪtə(r)) [n. of agent, in L. form, f. collimate v.] 1. A small fixed telescope with cross-wires at its focus, used for adjusting the line of collimation of an astronomical or other instrument.1825 Kater in Phil. Trans. 147 Description of a floating Collimator. 1843 Rep. Brit. Assoc...
Oxford English Dictionary
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Collimator
A collimator is a device which narrows a beam of particles or waves. The upper panel shows a situation where a collimator is not used, while the lower panel introduces a collimator.
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Multileaf collimator
A multileaf collimator (MLC) is a Collimator or beam-limiting device that is made of individual "leaves" of a high atomic numbered material, usually tungsten
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Floating collimator
A Floating collimator was an early collimator widely used in astronomical observations. A floating collimator consists of a rectangular box containing mercury, with a piece of cast iron floating on top.
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Collimator sight
the focus of the lens, creating an optical collimator. Collimator sights are a relatively old idea, being used in many forms for almost 100 years.
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Rotational modulation collimator
Rotational modulation collimators (or RMCs) are a specialization of the modulation collimator, an imaging device invented by Minoru Oda. See also
Coded aperture
Collimator
Modulation
References
RHESSI Imaging Explained
Astronomical instruments
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Applicator
Applicator Applicators may refer to:
The Applicators, an American pop punk band
A tool to put tubal ligation clips in place
Electron beam collimator component
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Collimated beam
Light can be approximately collimated by a number of processes, for instance by means of a collimator. Conversely, a point source at the focus of a parabolic mirror will produce a beam of collimated light creating a collimator.
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Reflector sight
, mostly by the diameter of the collimator lens. Similar types
Collimator sights (also called collimating or "occluded eye gunsight" (OEG)) are simply the optical collimator focusing a reticle without
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Type 97 81 mm infantry mortar
The collimator sight for the Type 97 Japanese mortar is heavier and more complicated than that utilized on the US 81-mm mortar Ml. The collimator can be traversed in a full circle, and the azimuth scale is calibrated in 100-mil graduations in two sections of 3,200 mils each.
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Snoot
See also
Collimator
Top hat
References
Photography equipment
Photographic lighting
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Pentax MX
glass, microprism patch
SA3: ground glass, microprism patch, for wide aperture lenses
SB1: ground glass, split image device
SD1: ground glass, cross collimator SD11: aerial image, cross collimator
SE: ground glass
SG: ground glass, grid
SI: ground glass, axis,
Data backs, Dial Data MX and a bulk film back
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Isocentric technique
Isocentric techniques require less patient repositioning as multiple field arrangements can be delivered with gantry and collimator movements, reducing Working
The movements of the linear particle accelerator (or linac) are threefold:
the gantry rotates (like a big crane arm)
the collimator twists in
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Magnetic proton recoil neutron spectrometer
The MPR has a 700 mm long cylindrical steel neutron collimator with a 10-cm2 bore. The collimator-foil arrangement defines the spectrometers field-of-view into the plasma.
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