Palladium-103

Palladium-103

Palladium-103 is a radioisotope of the elementpalladium that has uses in brachytherapy for prostate cancer and uveal melanoma. Palladium-103 may be created from palladium-102, or from rhodium-103 using a cyclotron. Palladium-103 has a half-life of 16.99 days and decays by electron capture to an excited state of rhodium-103, which undergoes internal conversion to eject an electron. The resulting electron vacancy leads to emission of characteristic X-rays with 20–23 keV of energy.