  Particle therapy is a growing cancer treatment modality worldwide. However,
there still remains a number of unanswered questions considering differences in
the biological response between particles and photons. These questions, and
probing of biological mechanisms in general, necessitate experimental
investigation. The Infrastructure in Proton International Research (INSPIRE)
project was created to provide an infrastructure for European research, unify
research efforts on the topic of proton and ion therapy across Europe, and to
facilitate the sharing of information and resources. This work highlights the
radiobiological capabilities of the INSPIRE partners, providing details of
physics (available particle types and energies), biology (sample preparation
and post-irradiation analysis), and researcher access (the process of applying
for beam time). The collection of information reported here is designed to
provide researchers both in Europe and worldwide with the tools required to
select the optimal center for their research needs. We also highlight areas of
redundancy in capabilities and suggest areas for future investment.
