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Title: | Low Z opacities at high densities | Authors: | Schott, R. Philippe, F. Angelo, P. Dufour, E. Poquérusse, A. Dalimier, E. Sauvan, P. Minguez, E. Gil, J. M. Rubiano, J. G. Rodriguez, R. Martel, P. Mancini, R. |
UNESCO Clasification: | 220410 Física de plasmas | Keywords: | Opacities | Issue Date: | 2003 | Publisher: | 0022-4073 | Journal: | Journal of Quantitative Spectroscopy and Radiative Transfer | Abstract: | We present an experimental study devoted to measuring the opacity of bound–bound transitions in ultra-dense, hot, low Z plasmas, which are at the extreme limit for conditions of both emission spectroscopy and absorption spectroscopy. In this work, we develop an absorption spectroscopy experiment specially adapted to high-density diagnostics, using newly designed structured targets and an ultra-high resolution spectrograph. An aluminum plasma is chosen as the first candidate and the opacity of the He-like 1s2–1s2p (Heβ) and 1s2–1s3p (Heγ) transitions are measured. | URI: | http://hdl.handle.net/10553/46064 | ISSN: | 0022-4073 | DOI: | 10.1016/S0022-4073(03)00094-3 | Source: | Journal of Quantitative Spectroscopy and Radiative Transfer [ISSN 0022-4073], v. 81, p. 441-450 |
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