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arXiv · 1012.0660

Determining reaction cross sections via characteristic X-ray detection: {\alpha}-induced reactions on 169Tm for the astrophysical {\gamma} -process

G. G. Kiss·T. Rauscher·T. Szücs·Zs. Kertész·Zs. Fülöp·Gy. Gyürky·C. Fröhlich·J. Farkas·Z. Elekes·E. Somorjai
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Abstract

The cross sections of the 169Tm({\alpha}, {\gamma})173Lu and 169Tm({\alpha},n)172Lu reactions have been measured first time using a new method, by detecting the characteristic X-ray radiation following the electron capturedecay of 172,173Lu. Despite the relatively long half-life of the reaction products (T1/2 = 500 and 6.7 days, respectively) it was possible to measure the cross section of the 169Tm({\alpha},{\gamma})173Lu reaction close to the Gamow window (T9 = 3.5 GK), between Ec.m. = 13.16 and 17.08 MeV. The 169Tm({\alpha},n)172Lu reaction cross section was measured from Ec.m. = 11.21 MeV up to Ec.m. = 17.08 MeV. The experimental results have been compared to theoretical predictions

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G. G. Kiss, T. Rauscher, T. Szücs, Zs. Kertész, Zs. Fülöp, Gy. Gyürky, C. Fröhlich, J. Farkas, Z. Elekes, E. Somorjai. 2010-12-03. Determining reaction cross sections via characteristic X-ray detection: {\alpha}-induced reactions on 169Tm for the astrophysical {\gamma} -process. https://doi.org/10.1016/j.physletb.2010.11.052

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