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EnglishThe emission of laser-produced plasmas in the XUV region has been observed with a novel technique that uses a toroidal mirror as focusing element, achieving a high spatial resolution on the plasma. The profiles of the resonance lines Be IV Lyman α and Be III 1s 2-1s 2p appear symmetrically split in two components far from the target (> mm). This effect, observed also for other resonance lines, can easily be interpreted as a motional Doppler shift. This indicates a minimum of ion density in the centre of the plasma expanding in a near conelike shape around the normal to the target.
| Titolo: | Spectroscopic Observations of Structures in an Expanding Laser-Produced Plasma |
| Autori: | |
| Data di pubblicazione: | 1981 |
| Rivista: | |
| Abstract: | The emission of laser-produced plasmas in the XUV region has been observed with a novel technique that uses a toroidal mirror as focusing element, achieving a high spatial resolution on the plasma. The profiles of the resonance lines Be IV Lyman α and Be III 1s 2-1s 2p appear symmetrically split in two components far from the target (> mm). This effect, observed also for other resonance lines, can easily be interpreted as a motional Doppler shift. This indicates a minimum of ion density in the centre of the plasma expanding in a near conelike shape around the normal to the target. |
| Handle: | http://hdl.handle.net/11577/2508222 |
| Appare nelle tipologie: | 01.01 - Articolo in rivista |
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