Please visit these sites to learn more about various aspects of proton therapy:
https://www.proton-therapy.org/
https://www.proton-therapy.org/patient-resources/websites/
https://en.wikipedia.org/wiki/Proton_therapy
https://www.mayoclinic.org/departments-centers/proton-beam-therapy-program/home/orc-20185488
https://www.mayoclinic.org/diseases-conditions/brain-tumor/multimedia/proton-beam-brain-tumor-infographic/ifg-20473412
https://www.massgeneral.org/cancer-center/radiation-oncology/treatments-and-services/proton-therapy
https://www.uab.edu/news/health/item/10246-uab-s-newest-cancer-killing-cyclotron-installed
https://www.ackermancancercenter.com/
https://www.connecticutchildrens.org/health-library/en/parents/proton-therapy/