The Johns Hopkins Proton Therapy Center is one of the largest and most sophisticated proton therapy treatment centers in the U.S. This allows us to treat more patients and provide more advanced therapies.

High-Tech Space
Our 80,000-square-foot proton center contains three specially equipped treatment rooms to deliver proton therapy, plus an additional space dedicated to research.

Proton Power: The Synchrotron
At the Johns Hopkins Proton Therapy Center, the action starts in a huge particle accelerator known as a synchrotron, where protons spin at ultra-fast speeds before making their journey to treatment rooms. Here’s a look at how the process unfolds.

Targeted Treatment
We use advanced pencil beam technology to “paint” tumors with cancer cell-killing proton energy layer by layer. This technology makes it possible to deliver varying degrees of energy targeted to the specific composition of each area of the tumor. There is virtually no exit dose compared with traditional radiation therapy, which allows us to spare surrounding tissues and vital organs.