Compact Z-pinch radiation source dedicated to broadband absorption measurements

Matter and Radiation at Extremes - Tập 1 - Trang 179-186 - 2016
Dunpin Hong1, Hervé Rabat1, Erwan Le Menn2, Clément Zaepffel3, Jean-Marc Bauchire1
1Univ. of Orleans, CNRS, GREMI, UMR 7044, 14 Rue d'Issoudun, BP6744, 45067, Orleans, France
2CNRS, LPG, UMR 6112, 2 rue de la Houssinère, BP 92208, 44322, Nantes, France
3Onera – The French Aerospace Lab, F-91761 Palaiseau, France

Tóm tắt

In order to acquire a broadband absorption spectrum in a single shot, a compact radiation source was developed by using a Z-pinch type electric discharge. This paper presents the mechanical and electrical construction of the source, as well as its electrical and optical characteristics, including the intense continuum of radiation emitted by the source in the UV and visible spectral range. It also shows that the compactness of the source allows direct coupling with the probed medium, enabling broadband absorption measurement in the spectral range of 200–300 nm without use of an optical fiber which strongly attenuates the light in the short wavelength range. Concretely, thanks to this source, broadband spectral absorption of NO molecules around 210 nm and that of OH molecules around 310 nm were recorded in this direct coupling arrangement. Copper atom spectral absorption around 325 nm of the peripheral cold zones of an intense transient arc was also recorded.

Tài liệu tham khảo

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Matter and Radiation at Extremes

Tập 1

179-186

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