Fig. 5From: Present state and issues in IORT PhysicsThe Xoft Axxent System (Xoft Inc. 345 Potero Ave. Sunnyvale, CA 94085, USA). a Schematic diagram of the X-ray source. b Left: the cooling tube in which the source is guided to the irradiation position. Right top: The source, bottom: light emission during source operation. c Spherical balloon applicators for breast IORTBack to article page