부산대학교 도서관

Ion acceleration due to the interaction between a short high-intensity laser pulse and a moderatelyoverdense plasma target is studied using Eulerian Vlasov-Maxwell simulations. The e ects ofvariations in the plasma density pro le and laser pulse parameters are investigated, and theinterplay of collisionless shock and target normal sheath acceleration is analyzed. It is shownthat the use of a layered-target with a combination of light and heavy ions, on the front and rearside respectively, yields a strong quasi-static sheath- eld on the rear side of the heavy-ion part ofthe target. This sheath- eld increases the energy of the shock-accelerated ions while preservingtheir mono-energeticity