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Mass Dictionary Terms

laser ablation
Laser ablation is a process that involves the removal or erosion of material from a target surface using laser energy. This...
asymptotic spectral reflectance
The unchanging nature of spectral reflectance as vegetational density increases to the point where additional increases in...
flowmeter
A flowmeter is a device used to measure the flow rate or quantity of a fluid passing through a particular point in a system....
suprathermal ion detector
A mass spectrometer used to detect ions formed by photo- and charge-exchange ionization of gases, such as those in the lunar...
matrix-assisted laser desorption/ionization
Process of analysis in which the analyte substance is distributed in a matrix before laser desorption. This method avoids...
Golgi Staining Technique
The Golgi staining technique (also called the black reaction) makes it possible to look at the nervous system by rendering...
isobar
One of a number of nuclides characterized by an identity between their mass numbers, but each having a different atomic...
platonic solid
Geometrical partition possible with a sphere that can be four, six, eight, 12 or 20 solid-angle wedges. Each platonic mass...
metrology
Metrology is the science and practice of measurement. It encompasses the theoretical and practical aspects of measurement,...
photonic integrated circuit
A photonic integrated circuit (PIC) is a compact and integrated device that incorporates multiple photonic components and...
de Broglie wavelength
The concept of the de Broglie wavelength exploits the wave-particle duality of quantum physics by associating all matter (of...
coring
A mass-relieving method whereby material is removed through the sides of a reflector in a direction parallel to the surface....
cyclotron resonance
The tendency of charge carriers to spiral about an axis in a direction identical to that of an applied magnetic field that...
gram
Unit of mass in the SI system.
mass spectrometry
An instrumental technique that utilizes the mass-to-charge ratio of charged particles as recorded from a mass spectrometer...
surface analysis by laser ionization
(SALI) A type of spectroscopy in which neutral atoms or molecules are ionized by an excimer laser beam and then measured by...
double-focusing mass spectrometer
A mass spectrometer utilizing both radial electrostatic and magnetic field analyzers to improve the focusing and increase...
glass annealing furnace
A furnace, generally electrically heated, with a control system capable of following a cam by which the temperature can be...
glass-melting furnace
A furnace used to heat glass materials. It may be a small laboratory-type furnace for small-scale experiments or large...
deep learning
Deep learning is a subset of machine learning that involves the use of artificial neural networks to model and solve complex...
electron
A charged elementary particle of an atom; the term is most commonly used in reference to the negatively charged particle...
nanoimprint lithography
Nanoimprint lithography (NIL) is a nanolithography technique used for fabricating nanoscale patterns on a substrate. It is a...
tellurium
The material favored for study of interaction of high-acoustic intensities with free carriers. Tellurium is the...
cycloidal mass spectrometer
A small mass spectrometer, with a limited mass range, equipped with an analyzer to generate a cycloidal-path beam of the...
residual gas analysis
A measurement in optical thin-film coating processes whereby the gases remaining in the vacuum chamber after coating are...
carbonization
Carbonization is a process in which organic materials are heated in the absence of air, leading to the decomposition of the...
trochoidal mass spectrometer
A magnetic-deflection mass spectrometer that has an electrostatic field placed perpendicularly to its magnetic field,...
epitaxial equipment
Epitaxial equipment refers to a set of specialized tools and systems used in the process of epitaxy, which is the growth of...
time-to-amplitude converter
A time-to-amplitude converter (TAC) is an electronic circuit that converts a time interval between two events into an...
pair production
The production of a positron-electron pair by a photon having energy greater than one mega-electron-volt, whereby some of...
laser gravimeter
Means of determining the relative motion of a (seismic) mass or acceleration body from a stable laser operated system.
standard thermal profile
In infrared imaging systems used for mass screening of printed circuit boards or other quality control applications, an...
mass spectroscope
An instrument that uses electromagnetic fields to sort out the relative masses of atoms and molecules.The same way an...
hybrid cooler
A cryogenic cooler device that is an intermittent Joule-Thomson refrigerator with a passive radiator serving as the...
molded lens
A molded lens is an optical lens manufactured using a molding process, typically involving the shaping of a material, such...
mass spectrograph
A device that uses electromagnetic fields to separate electrically charged particles according to their masses. As a beam of...
gray
1. A measure of absorbed dose, equal to the energy imparted by ionizing radiation to a mass of matter corresponding to 1 J...
drive
The hardware for reading (and writing in devices so equipped) an optical mass data storage disk.
helium leak detector
A small mass spectrometer used to find leaks in a vacuum system by detecting the presence of helium. Using a magnetic...
mass spectrum
A spectrum that displays the distribution in mass or in mass-to-charge ratio of ionized atoms, molecules or molecular parts....
newton (N)
The unit of force in the mks system that will give 1 kg of mass an acceleration of 1 m/s2.
bending of light
1. That action occurring when light passes through an optical interface at other than normal incidence, i.e., refraction. 2....
GaAlAs laser
A GaAlAs laser is a type of semiconductor laser diode that emits light in the near-infrared region of the electromagnetic...
infrared automatic mass screening
A thermal infrared imaging procedure developed for quality control of printed circuit boards. The thermogram of each board...
calutron
An electromagnetic device used to separate isotopes of elements based on their respective masses.
spectroscopy
Spectroscopy is a technique used in the study of interactions between matter and electromagnetic radiation. It involves...
holographic microscopy
The holographic recording of a microscopic specimen whereby magnification is achieved by alteration in a wavelength or...
isotopically selected laser spectroscopy
A spectroscopic technique in which an excitation band absorbs laser energy resulting in an electronic transition. The...
black hole
A cosmic phenomenon in which the mass and density of a star pass a critical point so that the escape velocity matches the...
gravitational lens
The effect of a powerful gravitational field on light traveling through the field. This effect is detectable in astronomical...
mass spectrometer
A device used to measure the masses and relative concentrations of atoms and molecules. It utilizes the Lorentz force...
microprobe
An instrument that produces an intense, tightly focused beam of ions to stimulate emissions from a minute section of a...
mass relieving
The removal of material from an optical system to decrease the weight and sometimes the bulk of the system. See coring;...
neutron drip line
Prediction based on observations of nuclear masses in the valley of stability that indicates the maximum number of electrons...
photolithography
Photolithography is a key process in the manufacturing of semiconductor devices, integrated circuits, and...
massive optics
Optical components exceeding 24 in. in diameter. The components are usually glass, acrylic or polystyrene and are used for...
label-free
Label-free refers to a technique or method that does not require the use of additional labels, tags, or markers to detect or...
optical air mass
A measure of the optical path length for light traveling from the sun or other celestial source through Earth's atmosphere...

(58 results found)

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