Messung der Lebensdauer angeregter Kernniveaus von Al28, Cs133, Pr141, W182 und Pt195 |
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Authors: | D. Bloess A. Krusche F. Münnich |
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Affiliation: | 1. Institut A für Physik der Technischen Hochschule Braunschweig, Deutschland
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Abstract: | The halflife of excited states in some nuclei has been measured by the method of delayed coincidences. Two different experimental arrangements have been used: a conventional scintillation counter equipment and a fast gasfilled parallelplate avalanche-counter. The results of these measurements are: 31 keV-level in Al28:T 1/2=(1.91±0.08) · 10?9 sec, 81 keV-level in Cs133:T 1/2=(6.25±0.05) · 10?9 sec, 145 keV-level in Pr141:T 1/2=(1.85±0.03) · 10?9 sec, 100keV-level in W182:T 1/2=(1.45±0.04) · 10?9 sec, 1290 keV-level in W182 T 1/2=(1.05±0.03) · 10?9 sec, 99 keV-level in Pt195:T 1/2≦1.6 · 10?10 sec, 129 keV-level in Pt195:T 1/2=(6.2±0.7) · 10?10 sec. These experimental values are discussed and compared with theoretical model predictions. |
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