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About 394 papers for “Dynode”

conversion dynode

2024

Citation: 'conversion dynode' in the IUPAC Compendium of Chemical Terminology, 5th ed.; International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.12372 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms. Requests for commercial usage of the compendium should be directed to IUPAC.

Cited by 0

dynode, n.

Oxford University Press eBooks · 2023

Cited by 0

Continuous Dynode Particle Multiplier

Kermit K. Murray, Robert K. Boyd, Marcos N. Eberlin et al. · IUPAC Standards Online · 2016

This document contains recommendations for terminology in mass spectrometry. Development of standard terms dates back to 1974 when the IUPAC Commission on Analytical Nomenclature issued recommendations on mass spectrometry terms and definitions. In 1978, the IUPAC Commission on Molecular Structure and Spectroscopy updated and extended the recommendations and made further recommendations regarding symbols, acronyms, and abbreviations. The IUPAC Physical Chemistry Division Commission on Molecular Structure and Spectroscopy’s Subcommittee on Mass Spectroscopy revised the recommended terms in 1991 and appended terms relating to vacuum technology. Some additional terms related to tandem mass spectrometry were added in 1993 and accelerator mass spectrometry in 1994. Owing to the rapid expansion of the field in the intervening years, particularly in mass spectrometry of biomolecules, a further revision of the recommendations has become necessary. This document contains a comprehensive revision of mass spectrometry terminology that represents the current consensus of the mass spectrometry community.

Cited by 0

Discrete Dynode Particle Multiplier

Kermit K. Murray, Robert K. Boyd, Marcos N. Eberlin et al. · IUPAC Standards Online · 2016

This document contains recommendations for terminology in mass spectrometry. Development of standard terms dates back to 1974 when the IUPAC Commission on Analytical Nomenclature issued recommendations on mass spectrometry terms and definitions. In 1978, the IUPAC Commission on Molecular Structure and Spectroscopy updated and extended the recommendations and made further recommendations regarding symbols, acronyms, and abbreviations. The IUPAC Physical Chemistry Division Commission on Molecular Structure and Spectroscopy’s Subcommittee on Mass Spectroscopy revised the recommended terms in 1991 and appended terms relating to vacuum technology. Some additional terms related to tandem mass spectrometry were added in 1993 and accelerator mass spectrometry in 1994. Owing to the rapid expansion of the field in the intervening years, particularly in mass spectrometry of biomolecules, a further revision of the recommendations has become necessary. This document contains a comprehensive revision of mass spectrometry terminology that represents the current consensus of the mass spectrometry community.

Cited by 0Open access

discrete dynode particle multiplier

2024

Citation: 'discrete dynode particle multiplier' in the IUPAC Compendium of Chemical Terminology, 5th ed.; International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.12395 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms. Requests for commercial usage of the compendium should be directed to IUPAC.

Cited by 0

continuous dynode particle multiplier

2024

Citation: 'continuous dynode particle multiplier' in the IUPAC Compendium of Chemical Terminology, 5th ed.; International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.12369 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms. Requests for commercial usage of the compendium should be directed to IUPAC.

Cited by 0

Inter-dynode Voltage Optimization of Discrete Dynode Electron Multipliers by Numerical Simulation

Li Liu, Wenbo Hu, Dezhen Zhao et al. · 2023

In order to improve the performance of discrete dynode electron multipliers, the effect of inter-dynode voltage on device gain was investigated by numerical simulation, and the distribution of inter-dynode voltages was optimized. The investigation results reveal that for an electron multiplier with 11-stage dynodes, when the inter-dynode voltage of the first 10 dynodes is 3.1 times that of the last 1 dynode, it can obtain a higher gain due to the improvement of electric field intensity and electron collection efficiency, whose overall electron collection efficiency and device gain increase by about 63% and 95%, respectively, in comparison with the case of applying the same inter-dynode voltage for all the dynodes.

Cited by 1

SURFACE ANALYSIS FOR CU-BE DYNODE

China Song · 1983

An investigation of the microscopic structure of the surface iilms of Cu-Be dynodes pcelcd off using a special chemical method was carried out by TEM.This methcd is more advantageous in giving a straight forward direct-viewing and avoiding a great deal of indirect analysis.Results showed that the BeO film was continuous,and the BeO grains were fine, dense and grainy in shape.However,the BeO film activated at 640℃ was quite different from that activated at 870℃.The former was thin and uniform,with fine and uniform grains around 150(?) in size,while the latter was thick and uneven with more fissures and its grains were uneven and coarse with the size from 200(?) up to 1000(?),indicating that the activation temperature had a considerable influence on the growth of the BeO thin film. The SAED and AES analysis results showed that there was small mount of Cu_2O and CuO in the peeled film,but not on the outermost surface. By measuring the secondary-electron yield combined with the diffraction analysis,it can be concluded that the BeO film played the major role in the secondary electron cmissiol of the dynode.

Cited by 0

Fast timing with photomultiplier dynode pulses

J. de Vries, F.E.T. Kelling · IEEE Transactions on Nuclear Science · 1988

Timing results are presented that were obtained with a time-definition system using photomultiplier dynode pulses without any further shaping. The dynode pulses are fed into a zero-crossover time discriminator with upper- and lower-level energy selectors. Timing measurements were performed with the XP2020(Q) photomultiplier and several scintillators: small NE111 cylinders, two different sizes of Pilot U conicals, and BaF/sub 2/ cylinders. The best time resolution of 100(2) ps FWHM per detector pair and /sup 60/Co was obtained with the NE111 scintillators. Several positron-lifetime spectrometers have been built with this timing system. The setup using the BaF/sub 2/ scintillators had a resolution of 150(1) ps FWHM. A detailed description of the adjustment procedure, which ensures reproducibility of the resolutions with a few picoseconds, is given.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

Cited by 8

NEW HIGH-GAIN DYNODE FOR PHOTOMULTIPLIERS

R. E. Simon, Alfred Sommer, J. J. Tietjen et al. · Applied Physics Letters · 1968

A new photomultiplier is described in which the recently reported GaP(Cs) material is used for the first dynode to obtain high secondary emission gain. Gain factors of 20 to 40 have been measured resulting in greatly improved performance of the new photomultiplier at very low light levels.

Cited by 30

Individual Dynode Voltage Regulator for Photomultiplier Tubes

B. d'E. Flagge, O. R. Harris · Review of Scientific Instruments · 1955

Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation B. d'E. Flagge, O. R. Harris; Individual Dynode Voltage Regulator for Photomultiplier Tubes. Rev Sci Instrum 1 June 1955; 26 (6): 619. https://doi.org/10.1063/1.1715267 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAIP Publishing PortfolioReview of Scientific Instruments Search Advanced Search |Citation Search

Cited by 6

The Performance of High-Gain First-Dynode Photomultipliers

G. A. Morton, Howard Smith, H. R. Krall · IEEE Transactions on Nuclear Science · 1969

The performance of photomultipliers having first dynodes of cesium-activated GaP with gains of from 30 to 50 is discussed. The resolution capabilities are high enough so that the pulse height distribution obtained from low intensity scintillations breaks up into separate peaks for one electron, two electrons, etc. This high resolution makes it possible to separate unwanted single electron dark pulses from the scintillation signal pulses very effectively. The full width at half maximum (FWHM) of a single electron pulse height distribution is typically 40% to 50%. Methods of measuring the resolution of these tubes are discussed together with some of the results obtained. These high gain dynodes appear to have good life characteristics. Their life and fatigue properties are as good or better than those of CuBe dynodes.

Cited by 20