MONTE CARLO SIMULATIONS TO EXPLORE THE POSSIBLE USE
OF 144Ce FOR BRACHYTHERAPY APPLICATIONS
V. O. Zilio1*, O. P. Joneja1,2, Y. Popowski3, R. Chawla1,2
1Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
2Paul Scherrer Institute, CH-5232 Villigen, Switzerland
3Division de Radio-Oncologie, Hôpital Universitaire de Genève, 1211 Genève, Switzerland
* Corresponding author. E-mail : email@example.com
Received : 15 February 2003; revised version accepted :19 April 2005
Several sources are commercially available for brachytherapy; research for an ideal source is still continuing. The present paper investigates the characteristics of a new candidate source, 144Ce / 144Pr, in a adequate containment. Monte Carlo dosimetric results of the source are compared with the most commonly used radio-isotopes for brachytherapy, viz. 192Ir, 90Sr / 90Y and 32P. The dosimetric contributions of gamma and beta radiation were calculated separately for 144Ce / 144Pr and 192Ir. From the comparative studies and the basic properties of 144Ce / 144Pr, i.e. half-life and specific activity, it is evident that this source should be considered as a serious candidate for future brachytherapy applications.
Keywords: 144Ce; Brachytherapy; Spring source; Monte Carlo calculation.