Upper limits for the existence of long-lived isotopes of roentgenium in natural gold
A sensitive search for isotopes of a superheavy element (SHE) in natural gold materials has been performed with accelerator mass spectrometry at the Vienna Environmental Research Accelerator, which is based on a 3-MV tandem accelerator. Because the most likely SHE in gold is roentgenium (Rg, Z=111), the search concentrated on Rg isotopes. Two different mass regions were explored: (i) For the neutron-deficient isotopes Rg261 and Rg265, abundance limits in gold of 3×10-16 were reached (no events...[Show more]
|Collections||ANU Research Publications|
|Source:||Physical Review C: Nuclear Physics|
|Access Rights:||Open Access|
|01_Dellinger_Upper_limits_for_the_existence_2011.pdf||1.76 MB||Adobe PDF|
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