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X-ray observations from laboratory sparks in air at atmospheric pressure under negative switching impulse voltages
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Electricity. (Åskforskning)
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Electricity. (Åskforskning)
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Electricity. (Åskforskning)
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Abstract [en]

We present for the first time detection of X-rays from laboratory sparks created in air at atmospheric pressure by applying an impulse voltage with slow rise time. X-ray production from three different electrode configurations were studied. The results confirm, for the first time, the production of X-rays in gaps excited by switching impulses. Results also show that the slow rate of rise of the voltage from switching impulses does not have a significant influence on the production of X-rays. Additionally, the timing of the X-ray occurrence strengthens the possibility that the mechanism of X-ray production is related to the encounter between streamers of opposite polarity.

National Category
Meteorology and Atmospheric Sciences
Research subject
Engineering Science with specialization in Atmospheric Discharges
Identifiers
URN: urn:nbn:se:uu:diva-338135OAI: oai:DiVA.org:uu-338135DiVA: diva2:1171494
Funder
The Swedish Foundation for International Cooperation in Research and Higher Education (STINT), IG2004-2031Swedish Research Council, 621-2009-2697Swedish Research Council, 621-2006-4299Swedish Research Council, 621-2012-3300
Available from: 2018-01-08 Created: 2018-01-08 Last updated: 2018-01-08
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Rahman, MahbuburHettiarachchi, PasanCooray, Vernon

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