Feasibility Study for Controlled Radiation Capsule for High Source Activity for Low Dose Radiation Brachytherapy.

In this paper, we propose a new radiation capsule design to enable a high dose rate for a low energy radiation source Iodine-125, conventionally used for low dose radiation (LDR) brachytherapy to lower the radiation risk and reduce the treatment duration for cancer treatment. Conventional LDR has a dose rate of less than 2 Gy/day. The proposed capsule enables a high dose rate of 10 Gy/min or higher due to the ability to control the stoppage of the radiation.