  Gaining in-situ access to relaxation dynamics of radiation induced defects
will lead to a better understanding of materials and is important for the
verification of theoretical models and simulations. We show preliminary results
from experiments at the new Neutralized Drift Compression Experiment (NDCX-II)
at Lawrence Berkeley National Laboratory that will enable in-situ access to
defect dynamics through pump-probe experiments. Here, the unique capabilities
of the NDCX-II accelerator to generate intense, nanosecond pulsed ion beams are
utilized. Preliminary data of channeling experiments using lithium and
potassium ions and silicon membranes are shown. We compare these data to
simulation results using Crystal Trim. Furthermore, we discuss the improvements
to the accelerator to higher performance levels and the new diagnostics tools
that are being incorporated.
