The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
T. Nakagawa, Y. Higurashi, and J. Ohnishi, "Further Improvement of Performance of RIKEN 28GHz SC-ECRIS and Search for the Optimum Structure of ECR Ion Sources", presented at the 13th Heavy Ion Accelerator Technology Conference, Yokohama, Japan, September 2015, paper THM1C01, unpublished.