Patent ID: 11923167
Assignee: SUMITOMO HEAVY INDUSTRIES ION TECHNOLOGY CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 8:
9. An ion implantation method comprising:
measuring a neutron ray from a neutron source which is generated in a beamline due to collision of a high-energy ion beam, by using a plurality of neutron ray measuring instruments which are disposed at a plurality of positions in the vicinity of the beamline along which an ion beam is transported; and
monitoring at least one of a plurality of devices which are disposed along the beamline, based on a plurality of measurement values measured by the plurality of neutron ray measuring instruments,
wherein the at least one of the plurality of devices is monitored based on the plurality of measurement values and a ratio of the plurality of measurement values.