Low-Energy Ions from Laser-Cooled Atoms
| Autor: | A. Fioretti, Donatella Ciampini, M. Viteau, M. Allegrini, I. Guerri, Francesco Tantussi, Francesco Fuso, Gholamreza Shayeganrad |
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| Rok vydání: | 2016 |
| Předmět: |
Materials science
Ion beam General Physics and Astronomy 02 engineering and technology Photoionization 7. Clean energy 01 natural sciences Focused ion beam law.invention Ion beam deposition Physics::Plasma Physics law Laser cooling 0103 physical sciences Atomic and molecular physics Physics::Atomic Physics nanophyiscs 010306 general physics business.industry Industrial physics 021001 nanoscience & nanotechnology Laser Ion gun Ion source retarding potential analyzers magnetooptical trap mass-spectrometry depth resolution beams design cesium optimization Physics::Accelerator Physics Optoelectronics Atomic physics 0210 nano-technology business |
| Zdroj: | Physical Review Applied 5 (2016): 054020–054020. doi:10.1103/PhysRevApplied.5.054020 info:cnr-pdr/source/autori:Shayeganrad, G.; Fioretti, A.; Guerri, I.; Tantussi, F.; Ciampini, D.; Allegrini, M.; Viteau, M.; Fuso, F./titolo:Low-Energy Ions from Laser-Cooled Atoms/doi:10.1103%2FPhysRevApplied.5.054020/rivista:Physical Review Applied/anno:2016/pagina_da:054020/pagina_a:054020/intervallo_pagine:054020–054020/volume:5 |
| ISSN: | 2331-7019 |
| DOI: | 10.1103/physrevapplied.5.054020 |
| Popis: | We report the features of an ion source based on two-color photoionization of a laser-cooled cesium beam outsourced from a pyramidal magneto-optical trap. The ion source operates in continuous or pulsed mode. At acceleration voltages below 300 V, it delivers some ten ions per bunch with a relative energy spread Delta U-rms/U similar or equal to 0.032, as measured through the retarding field-energy-analyzer approach. Space-charge effects are negligible thanks to the low ion density attained in the interaction volume. The performances of the ion beam in a configuration using focused laser beams are extrapolated on the basis of the experimental results. Calculations demonstrate that our low-energy and low-current ion beam can be attractive for the development of emerging technologies requiring the delivery of a small amount of charge, down to the single-ion level and its eventual focusing in the 10-nm range. |
| Databáze: | OpenAIRE |
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