Activation method combined with characteristic X-ray counting: A possibility to measure (alpha, gamma) cross sections on heavy p-nuclei

G. G. Kiss; T. Szuecs; Gy. Gyuerky; Zs. Fueloep; J. Farkas; Zs. Kertesz; E. Somorjai; M. Laubenstein; C. Froehlich; T. Rauscher

doi:10.1016/j.nuclphysa.2011.07.003

Activation method combined with characteristic X-ray counting: A possibility to measure (alpha, gamma) cross sections on heavy p-nuclei

G. G. Kiss, T. Szuecs, Gy. Gyuerky, Zs. Fueloep, J. Farkas, Zs. Kertesz, E. Somorjai, M. Laubenstein, C. Froehlich, T. Rauscher

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13 Citations (Scopus)

Abstract

For an improved modeling of the astrophysical nucleosynthesis of p-nuclei, low energy cross section data of alpha-induced reactions on heavy isotopes are needed. Technical difficulties hamper the experimental determination of these cross sections, therefore the relevant experimental data are almost completely missing. Here we present a new method for the cross section measurements, the activation technique based on the detection of characteristic X-ray radiation. The feasibility of the method is illustrated through the measurement of the Tm-169(alpha, gamma)Lu-173 and Tm-169(alpha, n)Lu-172 reaction cross sections. Despite the relatively long half-life of the reaction products (T-1/2 = 500 and 6.7 days, respectively) it was possible to measure the cross section of the Tm-169(alpha, gamma)Lu-173 reaction between E-c.m. = 13.16 and 17.08 MeV. The Tm-169(alpha, n)Lu-172 reaction cross section was derived from close above the threshold up to E-c.m.. = 17.08 MeV. Details of the new method and the experimental results are presented. (C) 2011 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	52-65
Number of pages	14
Journal	Nuclear Physics A
Volume	867
Issue number	1
DOIs	https://doi.org/10.1016/j.nuclphysa.2011.07.003
Publication status	Published - 1 Oct 2011

Keywords

deduced sigma. Activation method with HPCe and LEPS detectors
NUCLEAR REACTIONS Tm+169(alpha, gamma), (alpha, n), E=11.5-17.5 MeV
STARS
measured E gamma, I gamma, E(K X-ray), I (K X-ray)
NUCLEOSYNTHESIS
MICROPROBE
REACTION-RATES
SOFTWARE PACKAGE

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10.1016/j.nuclphysa.2011.07.003

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title = "Activation method combined with characteristic X-ray counting: A possibility to measure (alpha, gamma) cross sections on heavy p-nuclei",

abstract = "For an improved modeling of the astrophysical nucleosynthesis of p-nuclei, low energy cross section data of alpha-induced reactions on heavy isotopes are needed. Technical difficulties hamper the experimental determination of these cross sections, therefore the relevant experimental data are almost completely missing. Here we present a new method for the cross section measurements, the activation technique based on the detection of characteristic X-ray radiation. The feasibility of the method is illustrated through the measurement of the Tm-169(alpha, gamma)Lu-173 and Tm-169(alpha, n)Lu-172 reaction cross sections. Despite the relatively long half-life of the reaction products (T-1/2 = 500 and 6.7 days, respectively) it was possible to measure the cross section of the Tm-169(alpha, gamma)Lu-173 reaction between E-c.m. = 13.16 and 17.08 MeV. The Tm-169(alpha, n)Lu-172 reaction cross section was derived from close above the threshold up to E-c.m.. = 17.08 MeV. Details of the new method and the experimental results are presented. (C) 2011 Elsevier B.V. All rights reserved.",

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author = "Kiss, {G. G.} and T. Szuecs and Gy. Gyuerky and Zs. Fueloep and J. Farkas and Zs. Kertesz and E. Somorjai and M. Laubenstein and C. Froehlich and T. Rauscher",

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doi = "10.1016/j.nuclphysa.2011.07.003",

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TY - JOUR

T1 - Activation method combined with characteristic X-ray counting

T2 - A possibility to measure (alpha, gamma) cross sections on heavy p-nuclei

AU - Kiss, G. G.

AU - Szuecs, T.

AU - Gyuerky, Gy.

AU - Fueloep, Zs.

AU - Farkas, J.

AU - Kertesz, Zs.

AU - Somorjai, E.

AU - Laubenstein, M.

AU - Froehlich, C.

AU - Rauscher, T.

PY - 2011/10/1

Y1 - 2011/10/1

N2 - For an improved modeling of the astrophysical nucleosynthesis of p-nuclei, low energy cross section data of alpha-induced reactions on heavy isotopes are needed. Technical difficulties hamper the experimental determination of these cross sections, therefore the relevant experimental data are almost completely missing. Here we present a new method for the cross section measurements, the activation technique based on the detection of characteristic X-ray radiation. The feasibility of the method is illustrated through the measurement of the Tm-169(alpha, gamma)Lu-173 and Tm-169(alpha, n)Lu-172 reaction cross sections. Despite the relatively long half-life of the reaction products (T-1/2 = 500 and 6.7 days, respectively) it was possible to measure the cross section of the Tm-169(alpha, gamma)Lu-173 reaction between E-c.m. = 13.16 and 17.08 MeV. The Tm-169(alpha, n)Lu-172 reaction cross section was derived from close above the threshold up to E-c.m.. = 17.08 MeV. Details of the new method and the experimental results are presented. (C) 2011 Elsevier B.V. All rights reserved.

AB - For an improved modeling of the astrophysical nucleosynthesis of p-nuclei, low energy cross section data of alpha-induced reactions on heavy isotopes are needed. Technical difficulties hamper the experimental determination of these cross sections, therefore the relevant experimental data are almost completely missing. Here we present a new method for the cross section measurements, the activation technique based on the detection of characteristic X-ray radiation. The feasibility of the method is illustrated through the measurement of the Tm-169(alpha, gamma)Lu-173 and Tm-169(alpha, n)Lu-172 reaction cross sections. Despite the relatively long half-life of the reaction products (T-1/2 = 500 and 6.7 days, respectively) it was possible to measure the cross section of the Tm-169(alpha, gamma)Lu-173 reaction between E-c.m. = 13.16 and 17.08 MeV. The Tm-169(alpha, n)Lu-172 reaction cross section was derived from close above the threshold up to E-c.m.. = 17.08 MeV. Details of the new method and the experimental results are presented. (C) 2011 Elsevier B.V. All rights reserved.

KW - deduced sigma. Activation method with HPCe and LEPS detectors

KW - NUCLEAR REACTIONS Tm+169(alpha, gamma), (alpha, n), E=11.5-17.5 MeV

KW - STARS

KW - measured E gamma, I gamma, E(K X-ray), I (K X-ray)

KW - NUCLEOSYNTHESIS

KW - MICROPROBE

KW - REACTION-RATES

KW - SOFTWARE PACKAGE

U2 - 10.1016/j.nuclphysa.2011.07.003

DO - 10.1016/j.nuclphysa.2011.07.003

M3 - Article

SN - 0375-9474

VL - 867

SP - 52

EP - 65

JO - Nuclear Physics A

JF - Nuclear Physics A

IS - 1

ER -

Activation method combined with characteristic X-ray counting: A possibility to measure (alpha, gamma) cross sections on heavy p-nuclei

Abstract

Keywords

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