X-ray Thomson-scattering measurements of density and temperature in shock-compressed beryllium.
We present the first x-ray scattering measurements of the state of compression and heating in laser irradiated solid beryllium. The scattered spectra at two different angles show Compton and plasmon features indicating a dense Fermi-degenerate plasma state with a Fermi energy above 30 eV and with temperatures in the range of 10-15 eV. These measurements indicate compression by a factor of 3 in agreement with Hugoniot data and detailed radiation-hydrodynamic modeling.
Lee
H J
HJ
University of California, Berkeley, California 94720, USA.
Neumayer
P
P
Castor
J
J
Döppner
T
T
Falcone
R W
RW
Fortmann
C
C
Hammel
B A
BA
Kritcher
A L
AL
Landen
O L
OL
Lee
R W
RW
Meyerhofer
D D
DD
Munro
D H
DH
Redmer
R
R
Regan
S P
SP
Weber
S
S
Glenzer
S H
SH