A low pressure mercury vapor resonance ionization image detector

Autor:	B. W. Smith, J. D. Winefordner, O. I. Matveev
Rok vydání:	1998
Předmět:	Physics and Astronomy (miscellaneous) Chemistry chemistry.chemical_element Photoionization Radiation Laser Space charge Ion law.invention Mercury (element) law Ionization Cathode ray Physics::Atomic Physics Atomic physics
Zdroj:	Applied Physics Letters. 72:1673-1675
ISSN:	1077-3118 0003-6951
DOI:	10.1063/1.121149
Popis:	Narrow-band spectrally selective image detection based upon the resonance ionization of mercury atoms in a low pressure cell is described. Image dimensions and intensities were measured versus the wavelength of ionizing laser radiation and the dependence upon the voltage applied to electrodes was studied. The position sensitive image of the electron beam, created by two-step resonance photoionization of mercury, was studied when the detected laser beam was scanned spatially. A distorting influence of space charge due to positive mercury ions on the electron beam image was observed. Means of eliminating these distortions are discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::51960f4b59a303e768c094c4edb16967 https://doi.org/10.1063/1.121149 Zobrazit plný text záznamu