xenon-133

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xenon

 [ze´non]
a chemical element, atomic number 54, atomic weight 131.30, symbol Xe. (See Appendix 6.) The radioactive isotope 133Xe is used in assessment of pulmonary function, lung imaging, and cerebral blood flow studies.
xenon-133 a radioisotope of xenon having a half-life of 5.3 days and a principal gamma ray photon energy of 81 keV; used for pulmonary ventilation imaging. Symbol 133Xe.

xenon-133

Etymology: Gk, xenos, strange
a radioactive isotope of zenon gas, used in radiographic studies of the lung.

xenon

a chemical element, atomic number 54, atomic weight 131.30, symbol Xe. See Table 6.

xenon-133
a radioisotope of xenon having a half-life of 5.3 days and a principal gamma ray photon energy of 81 keV; used for pulmonary ventilation imaging. Symbol 113Xe.