Radiant energy – Ionic separation or analysis – With sample supply means
Patent
1990-09-13
1992-11-17
Berman, Jack I.
Radiant energy
Ionic separation or analysis
With sample supply means
250281, 250282, H01J 4910
Patent
active
051645920
ABSTRACT:
The power density of a pulsed laser beam for irradiating a sample is adjusted to break down the sample into the form of a plasma. After the momentary breakdown of the sample into the form of a plasma, ions are generated having a high charge. Then, after a certain time elapses, the ions having a high charge recombine with the electrons in the plasma to provide monovalent or low valent ions. These low valent ions are taken out of the plasma and introduced to a mass spectrometric apparatus.
REFERENCES:
patent: 3644731 (1972-02-01), Eloy
patent: 3673405 (1972-06-01), Moorman et al.
patent: 3727047 (1973-04-01), Janes
patent: 3953732 (1976-04-01), Oron et al.
patent: 4433241 (1984-02-01), Boesl et al.
patent: 4634864 (1987-01-01), Lucatorto et al.
patent: 4733073 (1988-03-01), Becker et al.
patent: 4818862 (1989-04-01), Conzemius
patent: 4849628 (1989-07-01), McLuckey et al.
patent: 4970390 (1990-11-01), Szymczak
Conzemius et al, "A Review of the Applications to Solids of the Laser Ion Source in Mass Spectrometry", International Journal of Mass Spectrometry and Ion Physics, vol. 34, Nos. 3,4, Jul. 1980, Amsterdam, NL, pp. 197-271.
Bykovskii et al, "Quantitative Analysis of Solids in a Mass Spectrometer with a Laser Ion Source Without Independent Calibration," Sov. Phys. Tech. Phys., vol. 21, No. 6, (Jun. 1976).
Kitamori Takehiko
Koga Masataka
Matsui Tetsuya
Nishitarumizu Tsuyoshi
Sakagami Masaharu
Berman Jack I.
Hitachi , Ltd.
Nguyen Kiet T.
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