Irradiation apparatus

An irradiation apparatus, comprising:

• a shielded housing;
• a plurality of ionising radiation source points configured to output ionising radiation, wherein the plurality of ionising radiation source points is an array distributed around an irradiation volume and the array of ionising radiation source points is configured to direct ionising radiation inwardly to the irradiation volume;
• a transport apparatus configured to support at least one sample to be irradiated within the irradiation volume, wherein the transport apparatus is configured to rotate about a first rotational axis lying within the irradiation volume;
• a detector array;
• and
• a controller configured to control operation of the plurality of ionising radiation source points and the detector array,
• wherein the controller is configured to:
• image the irradiation volume using at least one of the ionising radiation source points and the detector array to acquire image data of the at least one sample within the irradiation volume, and
• irradiate the at least one sample within the irradiation volume by controlling the plurality of ionising radiation source points based on the acquired image data, wherein the controller is configured to use a lower radiation dose during imaging compared to during irradiation.