KSIĄŻKI POWIĄZANE ZE SŁOWEM «ELECTRON MULTIPLIER»
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1
Electron multiplier fabrication
Fabrication and assembly details are given for the construction of a sixteen-stage silver-magnesium dynode electron multiplier. The unit has been used primarily for positive-ion detection in mass spectroscopy.
Frederick L. Reynolds, University of California, Berkeley. Radiation Laboratory, 1955
2
Mass Spectrometry: Principles and Applications
The discrete dynode electron multiplier is made up of a series of 12 to 20
dynodes that have good secondary emission properties. As shown in Figure 3.2,
these dynodes are held at decreasing negative potentials by a chain of resistors.
Edmond de Hoffmann, Vincent Stroobant, 2013
3
Recent Applications of
Electron-
multiplier Tubes
James Sircom Allen. RECENT APPLICATIONS OF ELECTRON-MULTIPLIER
TUBES RECENT APPLICATIONS OF ELECTRON-MULTIPLIER TUBES. 3
relatively few conduction electrons to which they can lose energy. Hence, the ...
4
Introduction to Spectroscopy
draws the electrons further into the electron multiplier, where each electron
strikes the surface again, each causing the ejection of two more electrons. This
process continues until the end of the electron multiplier is reached, and the
electrical ...
Donald Pavia, Gary Lampman, George Kriz, 2014
5
Understanding Mass Spectra: A Basic Approach
Electron Multiplier An electron multiplier detector restores this lost sensitivity by
exploiting the ability of surfaces that contain glass doped with about 10–20%
lead oxide to expel more than one electron when a charged particle collides with
it.
6
A User's Guide to Vacuum Technology
J. l Anode Discrete Dynode Electron Multiplier Figure 8.14 illustrates a typical
installation in which high gain is required-a combination Faraday cup-electron
multiplier. When the Faraday cup is in operation, the first dynode is grounded to
avoid ...
7
Inorganic Mass Spectrometry: Principles and Applications
Such a dual ion beam collector is applied, for example, for precise and accurate
measurements of isotope ratios, especially of gases in commercial stable isotope
ratio mass spectrometers.2 4.2 Secondary Electron Multiplier For a further ...
ELECTRON MULTIPLIER steps up weak impulses to practical working power.
The signal entering at left is tripled in power at each zigzag down the metal "
ladder" in tube. Increasing fluorescence in ladder demonstrates power increase.
9
Applications of LC-MS in Toxicology
The most common detection device is the electron multiplier. In an electron
multiplier, ions are converted into electrons by means of a dynode electrode -
when an ion strikes the dynode surface (made of secondary emitting materials,
e.g. CsSb ...
This system is useful mainly when working with a surface ionization source and
an electron multiplier ion detector, where instabilities in the ion source are
pronounced and where drifts in the gain of the multiplier are expected. It is not
practical ...
Mark Gordon Inghram, Richard J. Hayden, 1954
WIADOMOŚCI, KTÓRE ZAWIERAJĄ SŁOWO «ELECTRON MULTIPLIER»
Sprawdź, o czym dyskutuje się w prasie krajowej i zagranicznej oraz jak jest stosowane słowo
electron multiplier w wiadomościach.
SolariX XR provides "extreme resolution" and increased analytical …
... Cyclotron Resonance, instead of measuring the deflection of ions with a detector such as an electron multiplier, measures mass by detecting ... «Laboratory Talk, Maj 15»
Kobe "Vino" Bryant Keeps Time in Napa
Researcher Kohji Mitsubayashi and his team adapted an electron multiplier camera to record the evaporative patterns of Riesling, Pinot Noir ... «Wine Spectator, Maj 15»
Analysis of Pesticides in Baby Foods Using Triple Quad GC/MS/MS
The detector voltage (electron multiplier) was adjusted to give acceptable response at the lowest calibration level and avoid saturation at the highest calibration ... «Food Safety Magazine, Cze 14»
Three dimensions of resolution. SYNAPT G2-Si is the only way to …
The unique ion detection system combines an ultra-fast electron multiplier and 'hybrid ADC' detector electronics to provide outstanding ... «Labmate Online, Maj 14»
Detection Limit Analysis of Trace Level Concentrations Using …
A pulse-counting electron multiplier (1.7 x 10- 7Torr) finally collects the ions. Figure 1 shows a schematic of the system, wherein 'A' is the ... «Azom.com, Maj 14»
Introduction to Photoemissive and Semiconductor Junction Detectors
The photocurrent is amplified by the electron multiplier through secondary emission. The sensitivity of PMTs are higher than any other detector ... «AZoOptics.com, Kwi 14»
High-End Tools Needed for Multiple Pesticide Analyses
The AxION iQT also incorporates an ion pulser/electron multiplier detector that features patented technology for increased dynamic range and ... «Laboratory Equipment, Wrz 13»
New camera sensor borrows human retina tech to capture images at …
The standard camera used in these applications has been the electron multiplier charge coupled device (EMCCD), or for point-scanning ... «ExtremeTech, Sie 13»
Stony Brook physicists test new detector
To combat this, the prototype tested at SLAC uses a customized device called a gas electron multiplier, or GEM, to detect the photons, boost the ... «Symmetry magazine, Lip 13»
Gas Purity Applications of Atmospheric Pressure Ionization Mass …
... declustering region (2.5E-6 torr) and a 19 mm quadrupole mass filter, and then gathered by a pulse counting electron multiplier (1.7 E- 7 torr). «Azom.com, Cze 13»
