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Title: Studies of the Core Conditions of the Earth and Super-Earths Using Intense Ion Beams at FAIR

Abstract

Using detailed numerical simulations, we present the design of an experiment that will generate samples of iron under extreme conditions of density and pressure believed to exist in the interior of the Earth and interior of extrasolar Earth-like planets. In the proposed experiment design, an intense uranium beam is used to implode a multilayered cylindrical target that consists of a thin Fe cylinder enclosed in a thick massive W shell. Such intense uranium beams will be available at the heavy-ion synchrotron, SIS100, at the Facility for Antiprotons and Ion Research (FAIR), at Darmstadt, which is under construction and will become operational in the next few years. It is expected that the beam intensity will increase gradually over a couple of years to its maximum design value. Therefore, in our studies, we have considered a wide range of beam parameters, from the initial beam intensity (“Day One”) to the maximum specified value. It is also worth noting that two different focal spot geometries have been used. In one case, a circular focal spot with a Gaussian transverse intensity distribution is considered, whereas in the other case, an annular focal spot is used. With these two beam geometries, one can access differentmore » parts of the Fe phase diagram. For example, heating the sample with a circular focal spot generates a hot liquid state, while an annular focal spot can produce a highly compressed liquid or a highly compressed solid phase depending on the beam intensity.« less

Authors:
; ;  [1]; ;  [2];  [3]; ;  [4]
  1. GSI Helmholtzzentrum für Schwerionenforschung, Planckstraße 1, D-64291 Darmstadt (Germany)
  2. Institute of Problems of Chemical Physics, Russian Academy of Sciences, Institutskii pr. 18, 142432 Chernogolovka (Russian Federation)
  3. Goethe-Universität Frankfurt, D-60438 Frankfurt (Germany)
  4. E.T.S.I. Industriales, Universidad de Castilla-La Mancha, E-13071 Ciudad Real (Spain)
Publication Date:
OSTI Identifier:
22661099
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astrophysical Journal, Supplement Series; Journal Volume: 232; Journal Issue: 1; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ANTIPROTONS; COMPUTERIZED SIMULATION; EQUATIONS OF STATE; EXPERIMENT DESIGN; EXPERIMENT PLANNING; HEATING; HEAVY IONS; ION BEAMS; IRON; LAYERS; LIQUIDS; PHASE DIAGRAMS; PLANETS; PLASMA; SIS SYNCHROTRON; SOLIDS; URANIUM

Citation Formats

Tahir, N. A., Neumayer, P., Bagnoud, V., Lomonosov, I. V., Shutov, A., Borm, B., Piriz, A. R., and Piriz, S. A. Studies of the Core Conditions of the Earth and Super-Earths Using Intense Ion Beams at FAIR. United States: N. p., 2017. Web. doi:10.3847/1538-4365/AA813E.
Tahir, N. A., Neumayer, P., Bagnoud, V., Lomonosov, I. V., Shutov, A., Borm, B., Piriz, A. R., & Piriz, S. A. Studies of the Core Conditions of the Earth and Super-Earths Using Intense Ion Beams at FAIR. United States. doi:10.3847/1538-4365/AA813E.
Tahir, N. A., Neumayer, P., Bagnoud, V., Lomonosov, I. V., Shutov, A., Borm, B., Piriz, A. R., and Piriz, S. A. Fri . "Studies of the Core Conditions of the Earth and Super-Earths Using Intense Ion Beams at FAIR". United States. doi:10.3847/1538-4365/AA813E.
@article{osti_22661099,
title = {Studies of the Core Conditions of the Earth and Super-Earths Using Intense Ion Beams at FAIR},
author = {Tahir, N. A. and Neumayer, P. and Bagnoud, V. and Lomonosov, I. V. and Shutov, A. and Borm, B. and Piriz, A. R. and Piriz, S. A.},
abstractNote = {Using detailed numerical simulations, we present the design of an experiment that will generate samples of iron under extreme conditions of density and pressure believed to exist in the interior of the Earth and interior of extrasolar Earth-like planets. In the proposed experiment design, an intense uranium beam is used to implode a multilayered cylindrical target that consists of a thin Fe cylinder enclosed in a thick massive W shell. Such intense uranium beams will be available at the heavy-ion synchrotron, SIS100, at the Facility for Antiprotons and Ion Research (FAIR), at Darmstadt, which is under construction and will become operational in the next few years. It is expected that the beam intensity will increase gradually over a couple of years to its maximum design value. Therefore, in our studies, we have considered a wide range of beam parameters, from the initial beam intensity (“Day One”) to the maximum specified value. It is also worth noting that two different focal spot geometries have been used. In one case, a circular focal spot with a Gaussian transverse intensity distribution is considered, whereas in the other case, an annular focal spot is used. With these two beam geometries, one can access different parts of the Fe phase diagram. For example, heating the sample with a circular focal spot generates a hot liquid state, while an annular focal spot can produce a highly compressed liquid or a highly compressed solid phase depending on the beam intensity.},
doi = {10.3847/1538-4365/AA813E},
journal = {Astrophysical Journal, Supplement Series},
number = 1,
volume = 232,
place = {United States},
year = {Fri Sep 01 00:00:00 EDT 2017},
month = {Fri Sep 01 00:00:00 EDT 2017}
}