Donna and Lizzie Pinion celebrate treatment graduaction | ProCure

First steps: Doors are closed once radiation begins. | Nathaniel Andrew ~ For Sun-Times Media

Leading the way: Dr. William Hartsell is director of the proton therapy center in Warrenville. | Nathaniel Andrew ~ For Sun-Times Media

Precision positioning: The Inclined Beam Line provides 30- and 90-degree angles with complete flexibility in patient positioning. | Nathaniel Andrew ~ For Sun-Times Media

John and Meagan married for 22 years | Nathaniel Andrew

Meagan is positioned for treatment in the Inclined Beam Line | Nathaniel Andrew

Meagan Sunde, of Huntley, is prepper for radiation at the Proton Therapy Center in Warrenville. | Nathaniel Andrew ~ For Sun-Times Media

Precision positioning: The Inclined Beam Line provides 30- and 90-degree angles with complete flexibility in patient positioning. | Nathaniel Andrew ~ For Sun-Times Media