Table 1.

Key questions presented to the meeting participants.

Is there a need for the UK to have a clinical facility for Heavier Ions?

If so, why?

Which would be the optimum ion?

Might different ions be better for different types of tumour?

What type of accelerators should be used?

What typeof delivery equipment (e.g., gantry or not)?

How large should a facility be, and what should be its key features?

What is the potential timeline?

How can a facility be future-proofed?

How do we make this facility happen?

What are the potential barriers?

How can the barriers be overcome?

What are the research opportunities?

What facilities would be needed to undertake this research?

What is the potential impact of FLASH RT and what research is needed to take it towards the clinic?

What is the potential impact of SFRT and what research is needed to take it towards the clinic?

Define additional key questions based on scientific talks.

RT, radiotherapy; SFRT, spatially fractionated radiotherapy.