Title:
PHOTOIONIZATION MASS SPECTROMETER
Document Type and Number:
Japanese Patent JPH02119040
Kind Code:
A
Abstract:
PURPOSE: To improve photoionization efficiency and extend light radiation time by providing an ionization area of neutrons in a resonator and employing two total reflection mirrors as resonance mirrors.
CONSTITUTION: An ionization area is provided in a laser resonator 7. Ionization is thus performed by means of a laser beam with maximum intensity so that photoionization efficiency is improved. Resonance mirrors 17 and 19 are to be total reflection mirrors since there is no need to discharge a laser beam 20 outside. This results in mere decrease of laser strength due to ionization of neutrons 6. Accordingly, light radiation time is extended by enlarging a laser pulse width.
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Inventors:
MARUO TETSUYA
HONMA YOSHIKAZU
HONMA YOSHIKAZU
Application Number:
JP27163488A
Publication Date:
May 07, 1990
Filing Date:
October 27, 1988
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE
International Classes:
H01J49/14; G01N27/62; H01J37/252; H01J49/10; H01J49/26; (IPC1-7): H01J49/14; H01J49/26
Attorney, Agent or Firm:
Fujiya Shiga