Two-step photoionisation of palladium
| Autor: | Sergei I Yakovlenko, V I Derzhiev, Victor D Selemir, S A Chaushanskii, L A Mikhal'tsov, V M Dyakin, R I Il'kaev, Aleksei N Tkachev, I I Sidorov |
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| Rok vydání: | 2002 |
| Předmět: |
Materials science
chemistry.chemical_element Statistical and Nonlinear Physics Photoionization Laser Electromagnetic radiation Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Isotope separation law.invention Photoionisation cross section chemistry law Ionization Electrical and Electronic Engineering Atomic physics Radiant intensity Palladium |
| Zdroj: | Quantum Electronics. 32:619-622 |
| ISSN: | 1468-4799 1063-7818 |
| DOI: | 10.1070/qe2002v032n07abeh002257 |
| Popis: | The efficiency of two-step ionisation of palladium involving the 276.4-nm 4d{sup 101}S{sub 0} - 4d{sup 9}5p{sup 3}P{sub 1} transition is measured as a function of the laser radiation intensity in experiments aimed at laser separation of isotopes. It is shown that to obtain the efficient (over 50%) two-step ionisation of palladium by 10-ns laser pulses with a pulse repetition rate of 10 kHz, an average radiation intensity should exceed 100 W cm{sup -2}. The results of comparison of theoretical and experimental data on the two-step ionisation efficiency make it possible to estimate the photoionisation cross section of the 4d{sup 9}5p{sup 3}P{sub 1} state ({sigma}{sub i} {approx} 10{sup -16} cm{sup 2}). (interaction of laser radiation with matter) |
| Databáze: | OpenAIRE |
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