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Samarium-153 is an isotope of samarium.

It emits beta particles and gamma rays. (The therapeutic component is largely due to the beta particles, but the gamma rays make it easier to locate the distribution.)

It is used in samarium (153Sm) lexidronam.

It is treated by the body in a similar manner to calcium, and it localizes selectively to bone.

It is used in palliation of bone cancer.[1]

In creative works[edit]

In the television crime drama Law and Order Criminal Intent, a murder victim is poisoned by ingesting three vials of samarium-153. [2]

See also[edit]


  1. ^ Ballantyne, Jane C; Fishman, Scott M; Rathmell, James P. (2009-10-01). Bonica's Management of Pain. Lippincott Williams & Wilkins. pp. 655–. ISBN 978-0-7817-6827-6. Retrieved 19 July 2011. 
  2. ^ "E5408 - Inert Dwarf". Law & Order Criminal Intent (2001) Episode Scripts. Springfield Springfield. Retrieved 9 August 2015.