LASER ION SOURCE AND METHOD OF DRIVING LASER ION SOURCE

摘要

PROBLEM TO BE SOLVED: To reduce contamination on a downstream linear accelerator side due to unnecessary ions by suppressing emission of the unnecessary ions.;SOLUTION: The laser ion source which generates ions by irradiation with laser light includes a container 10 which is evacuated; an irradiation box 20 which is arranged in the container 10, and houses a target 21 generating multi-charged ions by irradiation with laser light; an ion beam lead-out part 12 which electrostatically leads ions out of the irradiation box 20 and guides them as an ion beam to the outside of the container 10; an electrostatic lens 51 which converges the ion beam led out of the irradiation box 20 with electrostatic force; and an aperture 52 which is provided at a position downstream from the electrostatic lens 51 and passes the ion beam converged at the position.;COPYRIGHT: (C)2012,JPO&INPIT