- Conference date: 3-7 June 2002
- Location: Berkeley, California (USA)
Opto‐galvanic spectra of the Doppler‐broadened line profiles of Hα have been obtained in the cathode fall of a low pressure gas discharge in order to determine the local electric field strength by comparison with calculated Stark‐profiles. Small but significant differences between the experimental and the theoretical profiles caused us to i) repeat the calculations with a second computer code to check the consistency of the respective results and ii) to repeat the measurements with deuterium instead of hydrogen to look for a possible influence of the hyper‐ fine‐structure.
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