Scheme for direct plasma injection into an RFQ linac

A new efficient injection method from a laser ion source to a Radio Frequency Quadropole, (RFQ) was proposed and is being tested in RIKEN, Japan. A laser plasma is induced just before the entrance of the RFQ and is injected directly into the RFQ channel. Using an existing RFQ, first verification tests have been completed successfully. Finally, the preliminary specifications for the first RFQ dedicated to the new injection scheme are presented.