抄録
We demonstrate a new scheme using the prominent characteristics of micron-scale hydrogen cluster targets
for achieving a level of 0.3 GeV quasi-monoenergetic proton bunch acceleration with low angular
divergence by utilizing the internal degree of freedom. In this scheme, the collisionless shock dynamics
inside the micron-scale cluster are subsequently coupled with the relativistically induced transparency
effect of a high-intensity laser. This step plays an important role. The scheme, which stably works for
the finite ranges of parameters with threshold values, is available for experiments.
