Temperature Measurements of Laser‐Cooled Ions in a Penning Trap
作者:
M. J. Jensen,
T. Hasegawa,
J. J. Bollinger,
期刊:
AIP Conference Proceedings
(AIP Available online 1903)
卷期:
Volume 692,
issue 1
页码: 193-202
ISSN:0094-243X
年代: 1903
DOI:10.1063/1.1635175
出版商: AIP
数据来源: AIP
摘要:
Between 104and 1069Be+ions are trapped in a Penning trap. The ions are laser‐cooled to ∼millikelvin temperatures, where they form ion crystals. This system is an example of a strongly coupled one‐component plasma. By means of Doppler laser spectroscopy we have measured the temperature and heating rate of the plasma. Initially the heating rate is low, 60 ± 40 mK/s, but after about 100 ms the plasma heats up rapidly to a few kelvin. The onset of the rapid heating coincides with the solid‐liquid phase transition. © 2003 American Institute of Physics
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