- direct photoionization
- прямая фотоионизация
English-russian dictionary of physics. 2013.
direct photoionization
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Desorption atmospheric pressure photoionization — schematic Desorption atmospheric pressure photoionization (DAPPI) is an atmospheric pressure ionization technique for mass spectrometry. DAPPI enables direct analysis of solid samples without pretreatment and analysis of samples deposited on… … Wikipedia
Rydberg Ionization Spectroscopy — Rydberg statesAtoms and molecules have ionization energy thresholds associated with the energy required to remove an electron from the ionic core. (The Rydberg formula describes the energy level series of a Rydberg atom.) Rydberg series describe… … Wikipedia
radiation — radiational, adj. /ray dee ay sheuhn/, n. 1. Physics. a. the process in which energy is emitted as particles or waves. b. the complete process in which energy is emitted by one body, transmitted through an intervening medium or space, and… … Universalium
mass spectrometry — or mass spectroscopy Analytic technique by which chemical substances are identified by sorting gaseous ions by mass using electric and magnetic fields. A mass spectrometer uses electrical means to detect the sorted ions, while a mass spectrograph … Universalium
ionosphere and magnetosphere — ▪ atmospheric science Introduction regions of Earth s (Earth) atmosphere in which the number of electrically charged particles ions (ion) and electrons (electron) are large enough to affect the propagation of radio waves (electromagnetic… … Universalium
comet — cometary /kom i ter ee/, cometic /keuh met ik/, cometical, adj. cometlike, adj. /kom it/, n. Astron. a celestial body moving about the sun, usually in a highly eccentric orbit, consisting of a central mass surrounded by an envelope of dust and… … Universalium
Matrix-assisted laser desorption electrospray ionization — Schematic of a typical MALDESI setup Matrix assisted laser desorption electrospray ionization (MALDESI) is a method for creating ions that can be used for chemical analysis in a mass spectrometer.[1] It is related to desorption electrospray… … Wikipedia
plasma — plasmatic /plaz mat ik/, plasmic, adj. /plaz meuh/, n. 1. Anat., Physiol. the liquid part of blood or lymph, as distinguished from the suspended elements. 2. Cell Biol. cytoplasm. 3. whey. 4. a green, faintly translucent chalcedony. 5. Physics. a … Universalium
Hollow cathode lamp — A hollow cathode lamp (HCL) is type of lamp used in physics and chemistry as a spectral line source and as a frequency tuner for light sources such as lasers.An HCL usually consists of a glass tube containing a cathode, an anode, and a buffer gas … Wikipedia
DART ion source — A capsule being analyzed is held in the sample chamber between the DART ion source (right) and the spectrometer inlet (cone on left). DART (Direct Analysis in Real Time) is an atmospheric pressure ion source that instantaneously ionizes gases,… … Wikipedia
Caesium — xenon ← caesium → barium Rb ↑ Cs ↓ Fr … Wikipedia
