Kay, L. and Sadler, D.A (1994) N-I and N-II Spectra and Mean Lifetimes Measureed by a new Technique of Beam-Foil Spectroscopy with a Charge-Couple- Device. Journal of Physics B-Atomic Molecular and Optical Physics, 27 (14). pp. 2877-2888. ISSN 0953-4075.
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A new method for measuring spectra and decay curves in beam-foil spectroscopy is described and some initial results presented. A charge-coupled device (CCD) is used to record simultaneously all points on a decay curve. A telecentric optical system ensures that the spectral resolvance is close to the irreducible limit (set by angular divergence of the atomic beam) and that no systematic distortion of the decay curve can occur. Values of mean lifetimes are reported in N II for 11 levels derived from decay curves for 15 lines in the wavelength range 500-700 mum. In addition decay curves have been measured for 5 blends, each of lines within the same N II multiplet; also some measurements for N I lines in the wavelength range 700-900 mum are reported.
|Subjects:||T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK8300 Optoelectronic devices|
|Divisions:||Faculties > Science Technology and Medical Studies > School of Physical Sciences > Optics|
|Depositing User:||P. Ogbuji|
|Date Deposited:||25 Jun 2009 09:26|
|Last Modified:||25 Jun 2009 09:26|
|Resource URI:||http://kar.kent.ac.uk/id/eprint/20282 (The current URI for this page, for reference purposes)|
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