Patent ID: 9370671
Filing Date: 2016-06-21
CPC Classification: A61N

Claim Text:
1. A method for determining an irradiation plan for a particle irradiation unit, the particle irradiation unit being configured to irradiate a target volume in an examination object with a particle beam based on the irradiation plan, the method comprising: prescribing the target volume and a predetermined dose distribution; determining the irradiation plan in a first pass to apply the particle beam based on the predetermined dose distribution in the target volume, the target volume comprising a plurality of isoenergy layers; determining the irradiation plan in a second pass with an additional condition that at least one isoenergy layer of the plurality of isoenergy layers is not irradiated; and determining the at least one isoenergy layer of the plurality of isoenergy layers based on a criterion selected from the group consisting of: