Samenvatting
Experiments with the new recoil separator, Transactinide Separator and Chemistry Apparatus (TASCA), at the GSI were performed by using beams of Ca-48 to irradiate targets of Pb206-208, which led to the production of No252-254 isotopes. These studies allowed for evaluation of the performance of TASCA when coupled to a new detector and electronics system. By following these studies, the isotopes of element 114 ((288-291)114) were produced in irradiations of Pu-244 targets with Ca-48 beams at compound nucleus excitation energies around 41.7 and 37.5 MeV, demonstrating TASCA's ability to perform experiments with picobarn-level cross sections. A total of 15 decay chains were observed and were assigned to the decay of 288-291114. A new a-decay branch in (281)Ds was observed, leading to the new nucleus (277)Hs.
Originele taal-2 | English |
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Artikelnummer | 054618 |
Aantal pagina's | 17 |
Tijdschrift | Physical Review C |
Volume | 83 |
Nummer van het tijdschrift | 5 |
DOI's | |
Status | Published - 27-mei-2011 |
Extern gepubliceerd | Ja |