M/C used in Brachytheraphy of Carcinoma cervix:

Brachytherapy: Type of radiation in which radioactivesources are placed in dose proximity to or directly into tumors. Interstial RT Needles Placed into Prostate/penis/othersoft tissue.) Intracavitary eg. In urethra (m/c used csl37) M/C used source in Brachytherapy - Irl 90. C.S.I. REMEMBER, somecommonly asked half life of ISOTOPES Radium 226——1620 years Caesium- 137—30 years Cobalt 60 ----- 5.3 years Iridium 192—74.4years Iodine 125 ---- 60 days Phosphorus32—14.3 days Gold 198—2.7 days