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Iodine-131 decay scheme (simplified) 131 I decays with a half-life of 8.0249(6) days [1] with beta minus and gamma emissions. This isotope of iodine has 78 neutrons in its nucleus, while the only stable nuclide, 127 I, has 74.
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Mentions of radioiodine in health care contexts refer more often to iodine-131 than to other isotopes. Of the many isotopes of iodine, only two are typically used in a medical setting: iodine-123 and iodine-131. Since 131 I has both a beta and gamma decay mode, it can be used for radiotherapy or for imaging.
The decay scheme of a radioactive substance is a graphical presentation of all the transitions occurring in a decay, and of their relationships. Examples are shown below. It is useful to think of the decay scheme as placed in a coordinate system, where the vertical axis is energy, increasing from bottom to top, and the horizontal axis is the proton number, increasing from left to right.
A handcuffed inmate whose fatal beating by correctional officers last year sparked outrage died by homicide, according to findings of an autopsy report a lawyer for the man's family shared Wednesday.
David Lever, 55, was charged with three counts of murder in the killings Friday of Anthony “Tony” Gribble, 80; Paula Gribble, 76; and Enrique Reyes, 64, according to the sheriff's office.
Iodine-123 (123 I) is a radioactive isotope of iodine used in nuclear medicine imaging, including single-photon emission computed tomography (SPECT) or SPECT/CT exams. The isotope's half-life is 13.2232 hours; [1] the decay by electron capture to tellurium-123 emits gamma radiation with a predominant energy of 159 keV (this is the gamma primarily used for imaging).
WASHINGTON (Reuters) -U.S. Representative French Hill, a Republican who chairs the House Financial Services Committee, said on Tuesday lawmakers from both chambers of congress would form a working ...