Antimony-119 (119Sb)
Antimony-119 (half-life 38.19 h) is a pure Auger electron emitter (100% at 570 keV of a cascade of 23-24 low energy high LET electrons) with… Read More »Antimony-119 (119Sb)
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Radionuclides
Xenon-127 (127Xe)
Properties: Xenon-127 (127Xe) is a radionuclide with a half-life of 36.4 days emitting gammas (203 keV, 68%; 172 keV, 26%; 375 keV, 17%) and betas… Read More »Xenon-127 (127Xe)
Tin-117m (117mSn)
Properties: Tin-117m (117mSn) is both a gamma (SPECT) emitter with a photon at 159 keV (86%) and a therapeutic radionuclide through conversion electrons at about… Read More »Tin-117m (117mSn)
Xenon-133 (133Xe)
Properties: Xenon-133 (133Xe) is a beta emitter at 346 keV (95%) with a half-life of 5.24 days. It is available only as a gas form… Read More »Xenon-133 (133Xe)
Yttrium-86 (86Y)
Yttrium-86 (86Y) is a radioactive isotope of yttrium, a rare earth metal. It has a half-life of 14.74 hours and decays by emitting positrons, which… Read More »Yttrium-86 (86Y)
Yttrium-90 (90Y)
Yttrium-90 is a radioactive isotope of the element yttrium with a half-life of approximately 64 hours. It is commonly used in targeted radiation therapy, known… Read More »Yttrium-90 (90Y)
Zirconium-89 (89Zr)
Zirconium-89 is a radioactive isotope of zirconium with a half-life of 78.4 hours. It is commonly used in positron emission tomography (PET) imaging to track… Read More »Zirconium-89 (89Zr)
Thorium-228 (228Th)
Properties: Thorium-228 (once called radiothorium due to its occurrence in the disintegration chain of Thorium-232) is an alpha emitter with a half-life of 1.91 years… Read More »Thorium-228 (228Th)
Thorium-227 (227Th)
Properties: Thorium-227 (once called Radioactinium) is an alpha emitter with a half-life of 18.7 days that decays into 223Ra (half-life 11.4 d; α, 76% at… Read More »Thorium-227 (227Th)
Samarium-153 (153Sm)
Properties: Samarium-153 (153Sm) is a beta emitter with a half-life of 46.3 hours. It emits electrons (β–) at 705 keV (49.6%), 635 keV (32.2%) and… Read More »Samarium-153 (153Sm)