< Is there an increase in cancer remission from use of Photon "Therapy" that more traditional radiation therapy? > The Core Answer There is no increase in cancer remission rates simply by using photons instead of other radiation types (like protons). For most cancers, both methods have nearly identical success rates in destroying cancer cells. What is the Difference? The real difference between the two treatments is not how well they cure the cancer, but how the radiation travels through your body. ==>> Photon Therapy (Standard Radiation): Uses high-energy X-rays. Because photons have no mass, they enter the body, hit the tumor, and keep going out the other side. This can expose the healthy tissue behind the tumor to radiation. ==>> Proton Therapy: Uses positively charged particles that have mass. Doctors can control them so they stop exactly inside the tumor. This means there is no "exit dose" affecting the healthy tissue behind the tumor. ==>> Why Photons are Still the Standard Even though protons are better at sparing healthy tissue, photons are still the most common treatment because they are highly effective, widely available, and significantly less expensive. Protons are usually reserved for treating tumors located very close to critical structures (like the brain, spine, or heart) or for treating children.