An experiment shows that equations of state of solid matter at pressure P= 10–50 Mbar can be studied by using lasers with pulse energy E≈100J. Laser beams smoothed by phase-zone plates produced high quality, planar shock waves in two-step, two-material targets, allowing simultaneous measurements of the shock velocities in the two materials. By the use of the impedance-matching technique, the relative consistency of the equations of state of these materials can be tested, or a relative equation of state data can be measured. Pressures higher than 35 Mbar were achieved in gold.
Relative Consistency of Equations of State by Laser Driven Shock Waves / Koenig, M; Faral, B; BOUDENNE J., M; Batani, D; Benuzzi, A; Bossi, S; Remond, C; PERRIN J., P; Temporal, M; Atzeni, Stefano. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - STAMPA. - 74:(1995), pp. 2260-2263. [10.1103/PhysRevLett.74.2260]
Relative Consistency of Equations of State by Laser Driven Shock Waves
ATZENI, Stefano
1995
Abstract
An experiment shows that equations of state of solid matter at pressure P= 10–50 Mbar can be studied by using lasers with pulse energy E≈100J. Laser beams smoothed by phase-zone plates produced high quality, planar shock waves in two-step, two-material targets, allowing simultaneous measurements of the shock velocities in the two materials. By the use of the impedance-matching technique, the relative consistency of the equations of state of these materials can be tested, or a relative equation of state data can be measured. Pressures higher than 35 Mbar were achieved in gold.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
