Comparison of high-resolution electric field measurements in a hollow cathode glow-discharge operated in hydrogen and deuterium

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González Fernández, Verónica and Steiger, Andreas and Rosa, M.I. de la (2021) Comparison of high-resolution electric field measurements in a hollow cathode glow-discharge operated in hydrogen and deuterium. Spectrochimica Acta Part B: Atomic Spectroscopy, 180 . p. 106194. ISSN 0584-8547

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Official URL: https://doi.org/10.1016/j.sab.2021.106194




Abstract

High-resolution measurements of the electric field strength in a hollow cathode discharge operated with deuterium gas are presented. The electric field strength is determined via Stark effect splitting of the 2S level of deuterium atoms using Doppler-free two-photon laser spectroscopy. The results are compared with equivalent measurements when the discharge was operated in hydrogen. The measured electric fields are analyzed using two classical models to obtain valuable parameters about the discharge dynamics, such as the energy of the ions and their mean free path in the cathode region. This information is compared with previous results for hydrogen and allows insight into the differences when gas discharges are operated with one of the isotopes.


Item Type:Article
Additional Information:

CRUE-CSIC (Acuerdos Transformativos 2021)

Uncontrolled Keywords:Deuterium, Hydrogen, Electric field, Laser spectroscopy, Discharge dynamics
Subjects:Sciences > Physics > Electromagnetism
Medical sciences > Optics > Physical optics
ID Code:70349
Deposited On:14 Feb 2022 15:31
Last Modified:18 Feb 2022 10:52

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