By coupling compounds and drugs containing specific elements preferentially to DNA or other intracellular elements, more damage is effected where it can do the most harm to a tumor.

The radiation dose needed to kill tumors is much lower.

Energy of the beam can be tuned to the one most effective for a tumor at a given depth, leaving deep organs untouched.

Some of the most common and most difficult tumors to treat now become more easily treatable.

The k-edge materials make the tumor cells more sensitive to the radiation than the surrounding normal tissues.

Less chance for over or under dosing of tumors and surrounding organs.

Less radiation dose needed to treat, lowering unwanted secondary effects on the patient.