Optimal beta-ray shielding thicknesses for different therapeutic radionuclides and shielding materials

Yong In Cho, Ja Mee Kim, Jung Hoon Kim

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


To better understand the distribution of deposited energy of beta and gamma rays according to changes in shielding materials and thicknesses when radionuclides are used for therapeutic nuclear medicine, a simulation was conducted. The results showed that due to the physical characteristics of each therapeutic radionuclide, the thicknesses of shielding materials at which beta-ray shielding takes place varied. Additional analysis of the shielding of gamma ray was conducted for radionuclides that emit both beta and gamma rays simultaneously with results showing shielding effects proportional to the atomic number and density of the shielding materials. Also, analysis of bremsstrahlung emission after beta-ray interactions in the simulation revealed that the occurrence of bremsstrahlung was relatively lower than theoretically calculated and varied depending on different radionuclides.

Original languageEnglish
Article numberncw076
Pages (from-to)13-20
Number of pages8
JournalRadiation Protection Dosimetry
Issue number1
Publication statusPublished - 2017 Apr 20

ASJC Scopus subject areas

  • Radiation
  • Radiological and Ultrasound Technology
  • Radiology Nuclear Medicine and imaging
  • Public Health, Environmental and Occupational Health


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