2010/12/17 by Darío Rodrigues, Rodrigues D., Balpardo C. +17
Health Professions · Medicine · Physics and Astronomy · #FOS: Physical sciences #Medical Imaging Techniques and Applications #Nuclear Experiment (nucl-ex) #Radioactive Decay and Measurement Techniques #Radioactivity and Radon Measurements #nucl-ex
paper · pdf · doi:10.48550/arxiv.1012.3891
arxiv created 2010/12/17 · openalex publication_date 2010/12/17 · arxiv updated 2010/12/20 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
The nuclide 18F disintegrates to 18O by beta+ emission (96.86%) and electron capture (3.14%) with a half-life of 1.8288 h. It is widely used in nuclear medicine for positron emission tomography (PET). Because of its short half-life this nuclide requires the development of fast measuring methods to be standardized. The combination of LSC methods with digital techniques proves to be a good alternative to get low uncertainties for this, and other, short lived nuclides. A radioactive solution of 18F has been standardized by coincidence counting with a LSC, using the logical sum of double coincidences in a TDCR array and a NaI scintillation detector. The results show good consistency with other techniques like 4Pi gamma and LSC.