The Importance of the Discharge Current in the Formation of the Pink Afterglow of a Nitrogen DC Discharge

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F09%3APU84033" target="_blank" >RIV/00216305:26310/09:PU84033 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
The Importance of the Discharge Current in the Formation of the Pink Afterglow of a Nitrogen DC Discharge
Original language description
In this work we have used optical emission spectroscopy to measure the (2-0) 1st positive system emission in nitrogen DC discharge at pressure p=1000 Pa, for discharge currents in the range I=50-200 mA, in a Pyrex tube with internal diameter (2R)=13 mm.It is shown that an important difference in behaviour occurs when the discharge current is increased from 50 to 70 mA. As a matter of fact, at 50 mA the pink-afterglow, characterized by the raise in the optical emission after a dark zone, does not exist,only the well known yellow-afterglow being visible. The former is a result of the vibration-vibration (V-V) up-pumping followed by vibration-to-electronic (V-E) energy exchanges, whereas the latter is a result of 3-body N-atom recombination. However, for 70 mA and higher currents the pink-afterglow exists and gets more noticeable as the current increases.
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2009
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of 36th European Physical Society Conference on Plasma Physics
ISBN
2-914771-61-4
ISSN
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e-ISSN
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Number of pages
4
Pages from-to
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Publisher name
EPS
Place of publication
Sofia
Event location
Sofia
Event date
Jun 29, 2009
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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