Phytosanitary dose requirements are lower than sterilization doses by an order of magnitude leading to much faster conveyor speeds.

Increasing processing speed above a certain level can prove challenging for heavy, fragile, and sometimes unstable pallets such as those arriving from farms for phytosanitary irradiation. Acceleration and deceleration around corners, rotators and maximum under-beam conveyor speed can act as bottlenecks.

Small and medium capacity plants can manage low dose processing by reducing the beam power of the accelerator. But large volume processors require a system configuration allowing to run the accelerator at full power in order not to limit their maximum production capabilities.

This presentation will review and demonstrate how an opposing configuration beamline can double the throughput compared with a single side irradiation configuration for an equivalent total beam power. The reduction in pallet processing cycle time will also be reviewed.