Cold starting of fluorescent lamps – part II: experiments on glow times and electrode damaging

Langer, Reinhard; Paul, Irina; Hilscher, A.; Horn, S.; Tidecks, R.

doi:10.1051/epjap/2016160278

Cited by 5 publications

(1 citation statement)

References 22 publications

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“…In the relatively recent experimental works [61,62], the stages after the passage of the ionization wave-the ignition of a glow discharge with the subsequent transition to the arc mode-were investigated. A U-shaped fluorescent lamp 1 m long and 17 mm in diameter was studied.…”

Section: Work Of the 1990s And Latermentioning

confidence: 99%

Electric Breakdown in Long Discharge Tubes at Low Pressure (Review)

Ionikh

2020

Plasma Phys. Rep.

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The review is devoted to studies of the processes and mechanisms of ignition of a glow discharge in tubes whose length significantly exceeds their diameter (long discharge tubes) at low pressures (~10 Torr and lower) and moderate voltage rise rates (~1 kV/μs and lower). The electric field in such tubes before a breakdown is substantially nonuniform. Therefore, a breakdown occurs after an ionization wave (or waves) passes through the discharge gap at a speed of ~105–107 cm/s. This makes the characteristics of the breakdown in long tubes significantly different from the breakdown between large and closely spaced electrodes, where the electric field is uniform before the breakdown and where the Townsend or, under strong overvoltage, streamer mechanism is realized. On the other hand, the nature of these processes is very different from those occurring in nanosecond discharges, which arise at voltages with a steepness of ~1 kV/ns and higher and are associated with high-speed (~109 cm/s) ionization waves. The review is based on the materials of experimental and computational works published from 1938 to 2020. Breakdown processes, optical and electrical characteristics of the discharge gap during breakdown, and the influence of the external circuit parameters and external actions (shielding and illumination by external sources of visible radiation) are analyzed.

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Section: Work Of the 1990s And Latermentioning

confidence: 99%

Electric Breakdown in Long Discharge Tubes at Low Pressure (Review)

Ionikh

2020

Plasma Phys. Rep.

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Cold starting of fluorescent lamps – part I: a description of the transient regime

Langer

Garner

Paul

et al. 2016

Eur. Phys. J. Appl. Phys.

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Evidence for electron-tunneling-limited Knudsen diffusion of mercury in phosphor layers and coatings of fluorescent lamps

Tidecks

2020

Eur. Phys. J. Appl. Phys.

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Recent experimental studies and modelling of the mercury loss (i.e. the mercury consumption) in fluorescent lamps yield diffusion coefficients of mobile mercury in phosphor layers and coatings, which are several orders of magnitude smaller than expected for a gas diffusion in a situation in which the mean free path of the diffusing particles is restricted by the pore radius in those materials (Knudsen diffusion). In the present work it is shown that the transition of mercury ions from the plasma to the Knudsen diffusion regime may be one reason for this observation. Another possibility is that only discharged ions from the plasma form the mercury oxide as which mercury is deposited in the phosphor layer and coating, from the investigation of which the diffusion coefficient of mobile mercury is concluded by fitting the model to the experiment.

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Cold starting of fluorescent lamps – part II: experiments on glow times and electrode damaging

Cited by 5 publications

References 22 publications

Electric Breakdown in Long Discharge Tubes at Low Pressure (Review)

Electric Breakdown in Long Discharge Tubes at Low Pressure (Review)

Cold starting of fluorescent lamps – part I: a description of the transient regime

Evidence for electron-tunneling-limited Knudsen diffusion of mercury in phosphor layers and coatings of fluorescent lamps

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