The observation of a new metastable state in mercury and the measurement of its excitation function by high-resolution electron impact
- 14 March 1987
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 20 (5) , 1135-1142
- https://doi.org/10.1088/0022-3700/20/5/028
Abstract
A new metastable state in mercury has been observed at an energy of 10.530 eV. It is assigned as 5d96s2(2D32/)6p12/(3/21/2)2 and its lifetime is estimated to be approximately 200 mu s. A novel technique has been used to differentiate this new metastable state from the other, lower-lying, metastable states of mercury, and high-resolution electron impact has been used to measure its excitation function, which displays resonance structure. A mechanism is described by which atoms in this metastable state de-excite at the detecting surface.Keywords
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