electron multiplier detector

См. также в других словарях:

• Electron multiplier — Continuous dynode electron multiplier An electron multiplier is a vacuum tube structure that multiplies incident charges.[1] In a process called secondary emission, a single electron can, when bombarded on secondary emissive material, induce… …   Wikipedia

• Gas Electron Multiplier — The Gas Electron Multiplier (GEM) is a type of gaseous ionization detector used in nuclear and particle physics and radiation detection. All gaseous ionization detectors are able to collect the electrons released by ionizing radiation, guiding… …   Wikipedia

• Microchannel plate detector — from the Daresbury Recoil Separator A micro channel plate (MCP) is a planar component used for detection of particles (electrons or ions) and impinging radiation (ultraviolet radiation and X rays). It is closely related to an electron multiplier …   Wikipedia

• Everhart-Thornley detector — The Everhart Thornley Detector is a secondary electron detector used in scanning electron microscopes (SEMs). It is named after its designers, Thomas E. Everhart and R. F. M. Thornley who in 1960 published their design to increase the efficiency… …   Wikipedia

• Daly detector — Schematic of a Daly detector Inventor Norman Richard Daly Related items Microchannel plate detector Electron multiplier A Daly detector is a gas phase ion detector that consists of a metal doorknob , a …   Wikipedia

• Negative electron-transfer dissociation — (NETD) is an ion/ion reaction in which an electron from an anionic specie is transferred to cationic reagent.[1] Following this transfer event, the electron deficient anion undergoes internal rearrangement and fragments. NETD is the ion/ion… …   Wikipedia

• Environmental scanning electron microscope — Wool fibers imaged in an ESEM by the use of two symmetrical plastic scintillating backscattered electron detectors …   Wikipedia

• 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

• Mass spectrum — Electron ionization mass spectrum of toluene [4]. Note parent peak corresponding to molecular mass M = 92 (C7H8+) and highest peak at M 1 = 91 (C7H7+, quasi stable tropylium cation). A mass spectrum is an inten …   Wikipedia

• Video camera tube — In older video cameras, before the mid to late 1980s, a video camera tube or pickup tube was used instead of a charge coupled device (CCD) for converting an optical image into an electrical signal. Several types were in use from the 1930s to the… …   Wikipedia

• Mass spectrometry — (MS) is an analytical technique that measures the mass to charge ratio of charged particles.[1] It is used for determining masses of particles, for determining the elemental composition of a sample or molecule, and for elucidating the chemical… …   Wikipedia