http://www.cnr.it/ontology/cnr/individuo/prodotto/ID2613
Rising the signal-to-noise ratio in X-ray spectra of femtosecond laser-produced plasmas using the 'mean-median' algorithm (Articolo in rivista)
- Type
- Label
- Rising the signal-to-noise ratio in X-ray spectra of femtosecond laser-produced plasmas using the 'mean-median' algorithm (Articolo in rivista) (literal)
- Anno
- 2007-01-01T00:00:00+01:00 (literal)
- Alternative label
Gasilov, SV; Mazhukin, VI; Faenov, AY; Pikuz, TA; Calegari, F; Stagira, S; Nisoli, M (2007)
Rising the signal-to-noise ratio in X-ray spectra of femtosecond laser-produced plasmas using the 'mean-median' algorithm
in Instruments and experimental techniques (N.Y.)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Gasilov, SV; Mazhukin, VI; Faenov, AY; Pikuz, TA; Calegari, F; Stagira, S; Nisoli, M (literal)
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- Rivista
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- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Russian Acad Sci, Inst Math Modeling, Moscow 125047, Russia; Russian Acad Sci, Inst High Temperatures Sci Assoc, Moscow 127412, Russia; Polytech Univ Milan, Dept Phys, Nalt Lab Ultrafast Ultraintense Opt Sci, Milan, Italy (literal)
- Titolo
- Rising the signal-to-noise ratio in X-ray spectra of femtosecond laser-produced plasmas using the 'mean-median' algorithm (literal)
- Abstract
- As femtosecond laser pulses increase in intensity and decrease in duration, interaction between the focused laser radiation and a substance is followed by a sharp increase in the intensity of fast-electron, ion, and electromagnetic noise generation. In turn, the noise signals of X-ray detectors grow in amplitude and the signal-to-noise ratio in recording X-ray spectra of multiply charged ions approaches unity. A significant excess of the noise level over the useful signal is observed in plasmas generated by laser pulses with a power density of >= 10(17) W/cm(2). The most powerful effect of the above factors is exerted on X-ray spectra recorded by such electromagnetic equipment as CCD-based detectors, photoelectron amplifiers, etc. A new '' mean-median '' algorithm is described, with which it is possible to considerably increase the signal-to-noise ratio of CCD detectors used to measure X-ray spectra of femtosecond laser-produced plasma. (literal)
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