Experimental and ab initio investigations of microscopic properties of laser-shocked Ge-doped ablator

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
G HuserR Kodama

Abstract

Plastic materials (CH) doped with mid-Z elements are used as ablators in inertial confinement fusion (ICF) capsules and in their surrogates. Hugoniot equation of state (EOS) and electronic properties of CH doped with germanium (at 2.5% and 13% dopant fractions) are investigated experimentally up to 7 Mbar using velocity and reflectivity measurements of shock fronts on the GEKKO laser at Osaka University. Reflectivity and temperature measurements were updated using a quartz standard. Shocked quartz reflectivity was measured at 532 and 1064 nm. Theoretical investigation of shock pressure and reflectivity was then carried out by ab initio simulations using the quantum molecular dynamics (QMD) code abinit and compared with tabulated average atom EOS models. We find that shock states calculated by QMD are in better agreement with experimental data than EOS models because of a more accurate description of ionic structure. We finally discuss electronic properties by comparing reflectivity data to a semiconductor gap closure model and to QMD simulations.

References

Mar 15, 1990·Physical Review. B, Condensed Matter·P E Blöchl
Oct 28, 1996·Physical Review Letters·J P PerdewM Ernzerhof
Sep 16, 2000·Physical Review Letters·P M CelliersB A Hammel
Sep 21, 2002·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·M P DesjarlaisL A Collins
Jun 6, 2003·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·K TakamatsuT Yamanaka
Aug 9, 2003·Physical Review Letters·D G HicksS J Moon
Jun 1, 2004·Physical Review Letters·Shinsuke FujiokaTatsuhiko Yamanaka
Aug 16, 2006·Physical Review Letters·D G HicksG W Collins
Apr 7, 2010·Physical Review Letters·M D Knudson, M P Desjarlais
May 21, 2010·Physical Review Letters·P M CelliersG W Collins
Sep 22, 2011·The Journal of Chemical Physics·Anna-Pitschna E KunzWilfred F van Gunsteren
Jan 24, 2012·The Journal of Physical Chemistry. B·Servaas MichielssensBert L de Groot
Sep 26, 2012·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Flavien Lambert, Vanina Recoules
Jul 16, 2014·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·S X HuL A Collins
Oct 15, 2014·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·K FalkJ F Benage
Feb 14, 2015·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·J-F Danel, L Kazandjian
Mar 15, 2015·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·G NormanP Zhilyaev
Nov 14, 2015·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·S X HuS Skupsky

❮ Previous
Next ❯

Citations

Mar 17, 2018·The Journal of Chemical Physics·Shuai ZhangKevin P Driver
Nov 15, 2016·Physical Review. E·G Norman, I Saitov
Jan 30, 2021·Physical Review Letters·A RavasioT Vinci
Feb 7, 2021·Nature Communications·M GuarguagliniA Ravasio

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
S X HuL A Collins
Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
P Colin-LaluG Huser
Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
D G SheppardL A Collins
Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
Cong WangPing Zhang
© 2022 Meta ULC. All rights reserved