The invention relates to an irradiation apparatus (11) for depositing a dose distribution in a target volume (13) to be irradiated, comprising: -an accelerator device (27) for supplying a particle beam (15) in order to irradiate the target volume (13) -a scanning device (25, 23) for modifying a property of the particle beam (15) such that the particle beam (15) is successively directed to different locations in a preset scanning volume (19) and is thus scanned over the scanning volume (19) during operation of the irradiation apparatus (11). The scanning device (25, 23) is designed to: -scan the scanning volume (19) along a defined scanning path (21) set independently of the target volume (13) and -adjust the dose distribution to be deposited in the target volume (13) by modulating an intensity of the particle beam (15) when the particle beam (15) is scanned along the scanning path (21). The invention further relates to an irradiation method corresponding to the irradiation apparatus.
