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An instrument used to display or record spectra, as from electromagnetic or sound waves.
Farlex Partner Medical Dictionary © Farlex 2012


(spĕk′trō-grăf) [″ + Gr. graphein, to write]
An instrument designed to photograph spectra on a sensitive photographical plate.

mass spectrograph

A device that separates ions of different masses by employing a magnetic field to deflect them as they travel along a given path.
Medical Dictionary, © 2009 Farlex and Partners
References in periodicals archive ?
A spectrograph decomposes the light of a star into its component colours, like a rainbow.
While universities, institutes, and industries all over the world are preparing for the construction of the first-light instruments for the three giant telescopes, scientists and engineers are already thinking about a second generation of cameras and spectrographs. As for the distant future, some astronomers are dreaming about a 15- to 20-meter space based observatory, covering the ultraviolet, visible, and infrared parts of the electromagnetic spectrum.
I recently joined the ranks of amateur spectroscopists by acquiring a LISA spectrograph from Shelyak.
"The SOPHIE spectrograph was already playing an important role in the characterization of Kepler planets by unveiling the true nature of the candidates and measuring the mass of giant planets.
The similarity between the measured BH mass and its uncertainty in this study and the 6.4 [+ or -] 0.5 x [10.sup.9] [M.sub.[??]] BH mass measured by Gebhardt and Thomas [68] support the idea that unbiased BH masses can be accurately measured if the DM halo is properly modeled and constrained by large scale kinematic measurements which wide field integral field spectrographs like the Mitchell Spectrograph provide.
The instrument will use 10 correcting mirrors mounted to deployable beryllium arms to redirect corrected light beams into spectrographs and cameras located within the telescope.
The previous eclipse occurred 27 years earlier, before amateurs had spectrographs. In the March 2012 S&T, British amateur spectroscopist Robin Leadbeater reported that more than 800 spectra taken by amateurs had been added to the wealth of data that now helps astronomers understand the strange eclipsing cloud.
The High Speed Electro-Mechanical Shutter for Imaging Spectrographs enables experimental validation of computational simulations of the physics and chemistry of combustion processes.
Spectrographs aboard the Far Ultraviolet Spectroscopic Explorer and the Hubble Space Telescope are ideal for such studies, says Savage.
CU graduate student Gabe Ycas, along with Diddams and CU astronomer Steve Osterman, created the frequency comb, which has widely spaced "teeth," or calibration points, tailored to the reading capability of spectrographs.