Fluorine-18
From Wikipedia, the free encyclopedia
Fluorine-18 | |
---|---|
[[Image:|250px|]] |
|
General | |
Name, symbol | Fluorine-18, 18F |
Neutrons | 9 |
Protons | 9 |
Nuclide Data | |
Natural abundance | Radioisotope |
Half-life | 109.771(20) min |
Decay products | oxygen-18 |
Isotope mass | 18.0009380(6) u |
Spin | 1+ |
Excess energy | 873.431 ± 0.593 keV |
Binding energy | 137369.199 ± 0.593 keV |
Decay mode | Decay energy |
Electron capture | 1.656 MeV |
Fluorine-18 is a fluorine radioisotope which is an important source of positrons. It has a mass of 18.0009380(6) u and its half-life is 109.771(20) min
Fluorine-18 is an important isotope in the radiopharmaceutical industry, and is primarily synthesized into FDG for use in Positron Emission Tomography (PET Scans). It is subsitituted for Hydrogen and used a tracer in the scan. Its significance is due to both its short half-life and the emission of positrons when decaying (PET being Positron Emission tomography). In the radiopharmaceutical industry, it is made using either a cyclotron or linear particle accelerator by bombarding oxygen-18 with hydrogen ions.