Absolute Equation of State Measurements on Shocked Liquid Deuterium up to 200GPa (2Mbar)

Journal Article · Wed Jan 01 04:00:00 EST 1997 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.78.483· OSTI ID:474669

Da Silva, L; Celliers, P; Collins, G; Budil, K; Holmes, N; Barbee, T Jr; Hammel, B; Kilkenny, J; Wallace, R; Ross, M; Cauble, R ^[1]; Ng, A; Chiu, G ^[2]

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1. Lawrence Livermore Laboratory, Livermore, California 94550 (United States)
2. University of British Columbia, Vancouver, British Columbia (Canada)

We present results of the first measurements of density, shock speed, and particle speed in liquid deuterium compressed by laser-generated shock waves to pressures from 25 to 210Gpa (0.25 to 2.1Mbar). The data show a significant increase in D{sub 2} compressibility above 50Gpa compared to a widely used equation of state model. The data strongly suggest a thermal molecular dissociation transition of the diatomic fluid into a monatomic phase. {copyright} {ital 1997} {ital The American Physical Society}

• Research Organization: Lawrence Livermore National Laboratory
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 474669
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 3 Vol. 78; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
COMPRESSIBILITY
DENSITY
DEUTERIUM
DISSOCIATION
EQUATIONS OF STATE
IMPACT SHOCK
LAWRENCE LIVERMORE LABORATORY
LIQUIDS
SHOCK WAVES
VERY HIGH PRESSURE