GIST Scholar
College of Natural Sciences
Department of Physics and Photon Science
1. Journal Articles
Investigation of femtosecond collisional ionization rates in a solid-density aluminium plasma
- Type
- Article
- Citation
- Nature Communications, v.6
- Issued Date
- 2015-03
- Abstract
- The rate at which atoms and ions within a plasma are further ionized by collisions with the free electrons is a fundamental parameter that dictates the dynamics of plasma systems at intermediate and high densities. While collision rates are well known experimentally in a few dilute systems, similar measurements for nonideal plasmas at densities approaching or exceeding those of solids remain elusive. Here we describe a spectroscopic method to study collision rates in solid-density aluminium plasmas created and diagnosed using the Linac Coherent light Source free-electron X-ray laser, tuned to specific interaction pathways around the absorption edges of ionic charge states. We estimate the rate of collisional ionization in solid-density aluminium plasmas at temperatures similar to 30 eV to be several times higher than that predicted by standard semiempirical models.
- Publisher
- NATURE PUBLISHING GROUP
- ISSN
- 2041-1723
- Appears in Collections:
- Department of Physics and Photon Science > 1. Journal Articles
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