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spectrograph Dictionary Terms

cryospectroscopy
The spectrographic analysis of matter that is in a cooled state. Generally, a mechanical refrigerator is used to lower the...
Fabry-Perot spectroscopy
The spectroscopic analysis of interference patterns using a monochannel spectrometer, spectrograph or multichannel...
reflecting spectrograph
A solar spectrograph that uses long focus concave mirrors as its collimator and camera element.
spectrographic slits
The slits in a spectrograph that form images of spectral lines. Slits may be bilateral or unilateral, and generally close...
spectrochemical equipment
Equipment used for chemical analysis by investigation of the spectra formed and observed in chemical activity. Of particular...
spectrograph
An optical instrument for forming the spectrum of a light source and recording it on a film. The dispersing medium may be a...
magnetic spectrograph
An electron system using the effect of a constant magnetic field on electron paths to differentiate electrons that have...
spectrometer
A kind of spectrograph in which some form of detector, other than a photographic film, is used to measure the distribution...
fiber-linked array image formatter
A wide-field multiobject spectroscopy system used in astronomy, in which a bundle of low-loss optical fibers positioned on...
vacuum spectrography
The technique of producing spectrograms in wavelengths beyond 120 nm by the use of a diffraction grating and a Schumann...
Littrow spectrograph
A spectrograph using a prism that has an internally reflecting surface and that serves as a constant deviation prism.
spectrographic electrode
The hollow electrode used in emission spectroscopy to hold the material to be examined and, using an arc or spark source, to...
glass spectrograph
A spectrograph having glass as its refracting component and used in cases where speed and high dispersion are not required....
microspectrograph
A microspectroscope equipped with a sensing and recording device, such as a camera, to measure the spectrum formed by...
mass spectrograph
A device that uses electromagnetic fields to separate electrically charged particles according to their masses. As a beam of...
astronomical spectrograph
An instrument that photographs the spectra of an extraterrestrial object.
prism spectrograph
 multichannel direct-reading spectrometer
An instrument that contains a spectrograph with a grating in which an array of slits, in place of a photographic plate, is...
spectrogram
A chart formed by a spectrograph; the record of the spectral range. See spectrograph.
thermal dissociation
A technique for detecting free radicals by their electronic spectra. The material to be studied is placed in a...
spectrography
The production and analysis of spectra with the use of a spectrograph.
grating spectrograph
crystal spectrograph
A system that applies a crystal as a diffracting agent to photograph the spectrum.
infrared instrument
Any of the photoelectric and thermal detectors, spectrographs and monochromators, thermographs, scanners, amplifier tubes,...
diffraction grating spectrograph
A spectrograph that uses a diffraction grating as its dispersive element in place of a prism, and yields greater resolving...
Littrow prism
A 30-60-90° spectrograph prism that is coated on the surface opposite the 60° angle with a reflecting film.
vacuum spectrograph
A spectrograph that functions in a vacuum and therefore eliminates any air-absorption of the emission being surveyed.
autocollimating spectrograph
A spectrograph in which the refracted beam returns almost along the path traveled by the incident beam, and is brought to a...
astronomical spectroscopy
The process of using a spectrograph with a telescope to acquire information on an astronomical object's speed and physical...
automatic recording spectrograph
A direct reading spectrograph having a photomultiplier assembly in place of a photographic plate. The output from the...
x-ray spectrograph
An instrument that is used to chart x-ray diffraction patterns, such as an x-ray spectrometer having photographic or other...
wedge spectrograph
A spectrograph in which the flux density transmitted through the entrance aperture is regulated by an optical wedge or...
quartz spectrograph
A spectrograph used to detect radiation in the range of the ultraviolet in the electromagnetic spectrum. It is made up of...
fery prism
A prism with curved faces that collimates, reflects and refracts incident light. Often used in the production of...
refracting prism
A prism that often is used as a dispersing element in spectrographs and monochromators.
spectrum measuring instrument
A traveling microscope or an automatic microdensitometer used to measure the spectrum plate obtained in a spectrograph.
diffraction grating
A diffraction grating is an optical component consisting of a surface with a periodic structure of equally spaced, parallel...
x-ray image spectrography
Irradiation of a cylindrical crystal with an x-ray beam resulting in Bragg diffraction that produces a slightly enlarged...

(38 results found)

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