Atomic negative ion survey using accelerator mass spectrometry.
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Atomic negative ion survey using accelerator mass spectrometry. by Muhammad Ahmad Garwan

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Published .
Written in English

Subjects:

  • Physics Theses

Book details:

Edition Notes

Thesis (Ph.D.), Dept. of Physics, University of Toronto

ContributionsLitherland, A. E. (supervisor)
The Physical Object
Pagination203 leaves.
Number of Pages203
ID Numbers
Open LibraryOL19575517M

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Mass Spectrometry Cluster Ions Measured Using Mass Spectrometry Magnetic Resonance 13C NMR, Methods Magnetic Resonance 13C NMR, Parameter Survey Electronic Spectroscopy Colorimetry, Methods Electronic Spectroscopy Colorimetry, Theory Vibrational, Rotational & Raman Spectroscopies Computational Methods and Chemometrics in Near Infrared Spectroscopy. Accelerator mass spectrometric methods have been used in the detection of the negative ions of the lanthanides. All of the lanthanide negative ions (La − −Lu −) have been observed except Pm −, Ho −, and Er −. The heavy element analysis line at the IsoTrace Laboratory was used to count the positive ions resulting from the atomic negative ions produced in a Cs sputter ion source and passed through the tandem by: 9. Accelerator mass spectrometry and its using negative ions (ii) dissociating molecular ions and stripping atomic ions to high positive charge states after a first stage of acceleration (iii) using a second stage of acceleration followed by identification of individual by: Accelerator mass spectrometry (AMS) exploits the natural instability of certain negative ions to separate atoms such as ^{14}C and ^{14}N.

Atomic negative ions Accelerator mass spectrometry (AMS) uses negative ions extensively as the first stage of an ion acceleration process which involves the changing of the ion charge to positive in the positive high voltage electrode of a tandem accelerator thereby destroying the interfering molecular ions [ 1 ] and later gaining extra energy by further by: 3.   Particle accelerators, such as those built for research in nuclear physics, can also be used together with magnetic and electrostatic mass analyzers to measure rare isotopes at very low abundance ratios. All molecular ions can be eliminated when accelerated to energies of millions of electron volts. Some atomic isobars can be eliminated with the use of negative ions Cited by: A method of study of weakly-formed negative ions by excitation in laser light and accelerator mass spectrometry is described. Measurement of the photo Cited by: 3. PDF | The extension of high-sensitivity mass spectrometry to isotope ratios in the range has been called accelerator mass spectrometry (AMS) | .

1 Accelerator mass spectrometry (AMS) Small accelerators Accelerator SIMS Developments in radiocarbon analysis Developments in the analysis of elements other than carbon 2 Glow discharge mass spectrometry (GDMS) Review and fundamental studies Instrumentation Analytical methodology 3 IndCited by: The use of tandem accelerators for accelerator mass spectrometry (AMS) allows to literally "analyze" molecules. When a molecular ion with mass M and charge Q is injected at the low-energy side, it. states of atomic negative ions has been obtained over the last 8 yrs with the use of ion storage rings. Accelerator mass spectrometry has helped in establishing the stability of sev-eral hitherto undetected atomic negative ions. On the theory side, substantial progress has been made in the accurate ab initio description of the negative ions with. Time-of-flight secondary ion mass spectrometry (ToF-SIMS) is a mass spectrom- etry technique used to analyse the chemistry of materials, in getic beam of primary ions (–20 keV) is used to bombard a sample surface.