Measurements of electrical resistivity of heavy ion beam produced high energy density matter: Latest results for lead and tungsten

作者：Udrea Serban^*; Ternovoi Vladimir^*; Shilkin Nikolay^*; Fertman Alexander^*; Fortov Vladimir E.^*; Hoffmann Dieter H. H.; Hug Alexander; Kulish Michail I.; Mintsev Victor; Ni Pavel; Nikolaev Dmitry; Tahir Naeem A.; Turtikov Vladimir; Varentsov Dmitry; Yuriev Denis

来源：Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment , 2007, 577(1-2): 257-261.

DOI：10.1016/j.nima.2007.02.059

• transport properties
• electrical resistivity
• boiling wave
• radiation-induced defects
• high energy density

The high-intensity heavy ion beams provided by the accelerator facilities of the Gesellsehaft fur Schwerionenforschung (GSI) Darmstadt are an excellent tool to produce large volumes of high energy density (HED) matter. Thermophysical and transport properties of HED matter states are of interest for fundamental as well as for applied research. During the last few years development of new diagnostic techniques allowed for a series of measurements of the electrical resistivity of heavy ion beam generated HED matter. In this report we present the most recent results on electrical resistivity of HED matter at GSI. The experiments on which we report have been performed with targets consisting of tungsten wires and lead foils, respectively. Uranium and argon beam pulses with durations of a few hundred ns, intensities of about 2 x 109 and 1 x 10(11) ions/bunch, respectively, and an initial ion energy of 300-350 A MeV have been used as a driver. An energy density deposition of about 1 kJ/g has been achieved by focusing the ion beam down to 1 mm FWHM or less.

• 出版日期2007-7-1