RADIATION SOURCE WITH DELIVERY WIRE

摘要

A radiation source (10) for delivering a dose of radiation to a treatment site (12) of a vessel (14) is provided herein. The radiation source (10) includes a delivery wire (44), and a radioactive segment (32). The radioactive segment (32) includes a substantially coiled or entwined radioactive wire (44), which allows the radioactive segment (32) to have a relatively large surface area to volume ratio. The delivery wire (44) is made of material having a relatively short half-life, such as titanium. The radioactive segment (32) is made of a material such as a rhenium or yttrium, which has a much longer half-life.