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Targeted alpha-particle therapy – possibilities of post-therapeutic imaging

100%

Tulik M. , Kunikowska J.

2024

tom Vol. 30, Iss. 4

258--262

The article presents the physical foundations of targeted radioisotope therapy with alpha particles, difficulties of imaging after an administration of alpha emitters, as well as current research trends and possibilities of their post-therapeutic imaging.

Determination of Track Density of Animal Bones using CN-85 Detector

100%

Kadhim Y. A. , Kadhim N. F. , Najam L. A.

tom 26

138-145

The aim of the study is to calculate the alpha emitters in bone samples of some animals by counting the tracks of alpha particles emitted from radioactive nuclei (Pb-210, Po-210, Ra-226) using the CN-85 detector. The detectors were kept with the samples in closed clear plastic cups at a 2 cm distance for 60 days. The track density in the detector, and, hence, the alpha emitters from the bones were counted with an optical microscope after etching the detectors with an etchant solution (NaOH). The results showed that the optimum etching time of CN-85 when using to detect alpha emitted from natural radionuclides were 40 mins and the highest track density were found in chicken, beef, and sheep respectively.