A4 Article in conference proceedings
On the formation mechanism of impurity helium solids (2006)
Popov, E., Ahokas, J., Eloranta, J., & Kunttu, H. (2006). On the formation mechanism of impurity helium solids. AIP Conference Proceedings, . https://doi.org/10.1063/1.2354748
JYU authors or editors
Publication details
All authors or editors: Popov, Evgeny; Ahokas, Jussi; Eloranta, Jussi; Kunttu, Henrik
Journal or series: AIP Conference Proceedings
ISSN: 0094-243X
eISSN: 1935-0465
Publication year: 2006
Number in series: 850
Pages range: 384
Publisher: American Institute of Physics
Publication country: United States
Publication language: English
DOI: https://doi.org/10.1063/1.2354748
Publication open access: Not open
Publication channel open access:
Abstract
In this study we present new data on cooling of seeded (N2 and NO) helium jets prior to penetration into the bulk helium. In this case, the fine structure originating from the molecular excited states is comparable to kT and therefore the corresponding ultraviolet and visible (UV/VIS) emissions can be used to estimate the temperature of the surroundings of the molecules. Cooling down of the clusters inside the bulk helium occurred slowly, presumably due to extra heat generated by atom‐atom recombination.
Keywords: helium; clusters; spectroscopy; emission (physics)
Free keywords: Liquids; Bubble model; Gas jet; Superfluids; Density functional theory; Chemical elements
Contributing organizations
Ministry reporting: Yes
Preliminary JUFO rating: Not rated