Isochoric Heating of Solid-Density Matter with an Ultrafast Proton Beam
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Open Access
- 19 September 2003
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 91 (12), 125004
- https://doi.org/10.1103/physrevlett.91.125004
Abstract
A new technique is described for the isochoric heating (i.e., heating at constant volume) of matter to high energy-density plasma states () on a picosecond time scale (). An intense, collimated, ultrashort-pulse beam of protons—generated by a high-intensity laser pulse—is used to isochorically heat a solid density material to a temperature of several eV. The duration of heating is shorter than the time scale for significant hydrodynamic expansion to occur; hence the material is heated to a solid density warm dense plasma state. Using spherically shaped laser targets, a focused proton beam is produced and used to heat a smaller volume to over 20 eV. The technique described of ultrafast proton heating provides a unique method for creating isochorically heated high-energy density plasma states.Keywords
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