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
Radium-226
Cobalt-60
Gold-198
Caesiom-137