Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Advanced Mass Spectrometers for Hydrogen Isotope Analyses
Author: A Mass Spectrometer for Routine Hydrogen Isotope Analysis
Author: C. M. StevensPublisher:
ISBN:
Category : Hydrogen
Languages : en
Pages : 16
Book Description
A Mass Spectrometer for Routine Hydrogen Isotope Analysis
Author: Alfred Otto NierPublisher:
ISBN:
Category : Hydrogen
Languages : en
Pages : 24
Book Description
A Mass Spectrometer for Routine Hydrogen Isotope Analyses
Author: ADVANCED MASS SPECTROMETERS FOR HYDORGEN ISOTOPE ANALYSES.
Author: A Mass Spectrometer for Routine Hydrogen Isotope Analyses
Author: Alfred Otto NierMiniature Mass Spectrometers for Hydrogen Isotopic Analyses
Author: W. A. SpencerPublisher:
ISBN:
Category :
Languages : en
Pages : 5
Book Description
As part of the Defense Programs Plant Directed Research and Development Program, the Savannah River Technology Center investigated the emerging area of miniature mass sensors for hydrogen and hydrogen isotope analysis. New sensors from Ferran Scientific and a beta prototype sensor from Mass Sensors, Inc. were purchased. A small pumping platform was designed and assembled. Components for miniature ion traps were investigated based on design information from Oak Ridge National Laboratories. The systems were compared to a conventional residual gas analyzer based on a Stanford Research RGA 300. Each of the sensors investigated had distinct advantages for particular applications. The Ferran system was the least expensive and the smallest, but it had low resolution for hydrogen and deuterium mixtures. The Mass Sensor unit used a new ExB design which achieved excellent resolution of the hydrogen isotopes in a small package. One limitation with the current design was the small 3 to 4 order dynamic range and another was a need for a variable sampling rate to speed analysis over a wider mass range.
Advances in Mass Spectrometry
Author: J. D. WaldronPublisher: Elsevier
ISBN: 1483184412
Category : Science
Languages : en
Pages : 721
Book Description
Advances in Mass Spectrometry documents the proceedings of a Joint Conference on Mass Spectrometry held at the University of London, Great Britain on September 24-26, 1958. This compilation reviews the instruments, techniques, applications, and major developments in mass spectrometry over the past years. The topics discussed include the performance and image error correction of the new stigmatic focusing mass spectrograph; correction of second order aberrations in inhomogeneous magnetic sector fields; and high sensitivity solid source mass spectrometry. The isotope dilution analysis; digitization of mass spectra; ionization potentials of alkyl and halogenated alkyl free radicals; and negative ion formation and electric breakdown in some halogenated gases are also elaborated. This book likewise covers the mass spectrometer as a geological instrument and absorption and desorption of gases in the ionized state on metal and glass surfaces. This publication is a useful reference to students and researchers conducting work on mass spectrometry.
Mass Spectrometer for Accurate Hydrogen Isotopic Analyses
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
A theoretical study of the mass spectrometric analysis of mixtures of the hydrogen and helium isotopes shows that mass discrimination and low ion intensity in ion sources are the principal factors that limit accuracy. A virtual-image ion source with short focal length and high brightness avoids these limitations. Suitable analyzers and accessory equipment are available. Development and construction of an ion source with the required characteristics are within the state of the art of mass spectrometry. A high-resolution mass spectrometer with a satisfactory ion source should routinely analyze mixtures of the hydrogen and helium isotopes accurately within +-0.5 percent relative (99.7 percent CL) with ordinary operating techniques. Isotopic equilibrium, auxiliary helium analyses, and accurate standard would not be needed. Analyses accurate within +-0.3 percent relative (99.7 percent CL) could be made by using accurately mixed standards.
Special Applications Line Recorder Mass Spectrometer for Isotope Analysis
Author: R. H. StevensPublisher:
ISBN:
Category : Isotopes
Languages : en
Pages : 50
Book Description