Covariance Mapping: A Correlation Method Applied to Multiphoton Multiple Ionization

In some cases there are hidden correlations in a highly fluctuating signal, but these are lost in a conventional averaging procedure. Covariance mapping allows these correlations to be revealed unambiguously. As an example of the applicability of this technique, the dynamics of fragmentation of mole...

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Bibliographic Details
Published in:Science (American Association for the Advancement of Science) 1989-11, Vol.246 (4933), p.1029-1031
Main Authors: Frasinski, L. J., Codling, K., Hatherly, P. A.
Format: Article
Language:English
Subjects:
Analysis of covariance
Atoms & subatomic particles
Chemistry
Covariance
Covariance analysis
Exact sciences and technology
Inorganic chemistry and origins of life
Ionization
Ions
Kinetic energy
Kinetics and mechanism of reactions
Lasers
Mass spectroscopy
Molecules
Momentum
Science
Signal detection
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Summary:In some cases there are hidden correlations in a highly fluctuating signal, but these are lost in a conventional averaging procedure. Covariance mapping allows these correlations to be revealed unambiguously. As an example of the applicability of this technique, the dynamics of fragmentation of molecules ionized by an intense picosecond laser are analyzed.
ISSN:0036-8075
1095-9203
DOI:10.1126/science.246.4933.1029