Resumen
Progress on a method of barium tagging for the nEXO double beta decay experiment is reported. Absorption and emission spectra for deposits of barium atoms and ions in solid xenon matrices are presented. Excitation spectra for prominent emission lines, temperature dependence, and bleaching of the fluorescence reveal the existence of different matrix sites. A regular series of sharp lines observed in Ba+ deposits is identified with some type of barium hydride molecule. Lower limits for the fluorescence quantum efficiency of the principal Ba emission transition are reported. Under current conditions, an image of fewer than or equal to 104 Ba atoms can be obtained. Prospects for imaging single Ba atoms in solid xenon are discussed.
| Idioma original | English |
|---|---|
| Número de artículo | 022505 |
| Publicación | Physical Review A - Atomic, Molecular, and Optical Physics |
| Volumen | 91 |
| N.º | 2 |
| DOI | |
| Estado | Published - feb 10 2015 |
Nota bibliográfica
Publisher Copyright:© 2015 American Physical Society.
Financiación
| Financiadores | Número del financiador |
|---|---|
| National Science Foundation (NSF) | PHY-1132428 |
| Office of Science Programs | |
| Michigan State University-U.S. Department of Energy (MSU-DOE) Plant Research Laboratory | |
| Directorate for Mathematical and Physical Sciences | 1132428 |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
Huella
Profundice en los temas de investigación de 'Spectroscopy of Ba and Ba+ deposits in solid xenon for barium tagging in nEXO'. En conjunto forman una huella única.Citar esto
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