| title |
Lutetium-176 |
| header |
| teaser |
/assets/images/spectra-th/Lu-176.png |
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| last_modified_at |
2022-08-24 15:10:00 +0200 |
Naturally occurring lutetium (71Lu) is composed of one stable isotope 175Lu (97.41% natural abundance) and one long-lived radioisotope, 176Lu with a half-life of 3.78 × 1010 years (2.59% natural abundance). Thirty-five radioisotopes have been characterized, with the most stable, besides 176Lu, being 174Lu with a half-life of 3.31 years, and 173Lu with a half-life of 1.37 years. All of the remaining radioactive isotopes have half-lives that are less than 9 days, and the majority of these have half-lives that are less than half an hour. This element also has 18 meta states, with the most stable being 177mLu (t1/2 160.4 days), 174mLu (t1/2 142 days) and 178mLu (t1/2 23.1 minutes).
<iframe width="100%" height="500" src="/assets/spectra/Lu-176.html" title="Lu-176 gamma spectrum" frameborder="0" allowfullscreen></iframe>
5 minute measurement with a High Purity Germanium (HPGe) radiation detector.
| Isotope: |
Lutetium |
| Mass number: |
176 |
| Atomic number: |
71 |
| Neutron number: |
105 |
| ... |
... |