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

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

doi:10.1016/j.physletb.2010.11.052

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

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

Centre for Astrophysics Research (CAR)

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Abstract

The cross sections of the Tm-169(alpha, gamma)Lu-173 and Tm-169(alpha,n)Lu-172 reactions have been measured first time using a new method, by detecting the characteristic X-ray radiation following the electron capture-decay of Lu-172,Lu-173. 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 close to the Gamow window (T-9 = 3.5 GK), between E-c.m. = 13.16 and 17.08 MeV. The Tm-169(alpha,n)Lu-172 reaction cross section was measured from E-c.m. = 11.21 MeV up to E-c.m. =17.08 MeV. The experimental results have been compared to theoretical predictions. (C) 2010 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	419-423
Number of pages	5
Journal	Physical Letters B
Volume	695
Issue number	5
DOIs	https://doi.org/10.1016/j.physletb.2010.11.052
Publication status	Published - 17 Jan 2011

Keywords

MODEL
Nuclear astrophysics
Characteristic X-ray emission
NUCLEOSYNTHESIS
REACTION-RATES
P-PROCESS
Statistical model
Astrophysical gamma-process
Nucleosynthesis

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@article{34efae7d91aa44dd9a1f70686e77c17f,

title = "Determining reaction cross sections via characteristic X-ray detection: alpha-induced reactions on Tm-169 for the astrophysical gamma-process",

abstract = "The cross sections of the Tm-169(alpha, gamma)Lu-173 and Tm-169(alpha,n)Lu-172 reactions have been measured first time using a new method, by detecting the characteristic X-ray radiation following the electron capture-decay of Lu-172,Lu-173. 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 close to the Gamow window (T-9 = 3.5 GK), between E-c.m. = 13.16 and 17.08 MeV. The Tm-169(alpha,n)Lu-172 reaction cross section was measured from E-c.m. = 11.21 MeV up to E-c.m. =17.08 MeV. The experimental results have been compared to theoretical predictions. (C) 2010 Elsevier B.V. All rights reserved.",

keywords = "MODEL, Nuclear astrophysics, Characteristic X-ray emission, NUCLEOSYNTHESIS, REACTION-RATES, P-PROCESS, Statistical model, Astrophysical gamma-process, Nucleosynthesis",

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

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doi = "10.1016/j.physletb.2010.11.052",

language = "English",

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journal = "Physical Letters B",

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TY - JOUR

T1 - Determining reaction cross sections via characteristic X-ray detection

T2 - alpha-induced reactions on Tm-169 for the astrophysical gamma-process

AU - Kiss, G. G.

AU - Rauscher, T.

AU - Szuecs, T.

AU - Kertesz, Zs.

AU - Fueloep, Zs.

AU - Gyuerky, Gy.

AU - Froehlich, C.

AU - Farkas, J.

AU - Elekes, Z.

AU - Somorjai, E.

PY - 2011/1/17

Y1 - 2011/1/17

N2 - The cross sections of the Tm-169(alpha, gamma)Lu-173 and Tm-169(alpha,n)Lu-172 reactions have been measured first time using a new method, by detecting the characteristic X-ray radiation following the electron capture-decay of Lu-172,Lu-173. 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 close to the Gamow window (T-9 = 3.5 GK), between E-c.m. = 13.16 and 17.08 MeV. The Tm-169(alpha,n)Lu-172 reaction cross section was measured from E-c.m. = 11.21 MeV up to E-c.m. =17.08 MeV. The experimental results have been compared to theoretical predictions. (C) 2010 Elsevier B.V. All rights reserved.

AB - The cross sections of the Tm-169(alpha, gamma)Lu-173 and Tm-169(alpha,n)Lu-172 reactions have been measured first time using a new method, by detecting the characteristic X-ray radiation following the electron capture-decay of Lu-172,Lu-173. 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 close to the Gamow window (T-9 = 3.5 GK), between E-c.m. = 13.16 and 17.08 MeV. The Tm-169(alpha,n)Lu-172 reaction cross section was measured from E-c.m. = 11.21 MeV up to E-c.m. =17.08 MeV. The experimental results have been compared to theoretical predictions. (C) 2010 Elsevier B.V. All rights reserved.

KW - MODEL

KW - Nuclear astrophysics

KW - Characteristic X-ray emission

KW - NUCLEOSYNTHESIS

KW - REACTION-RATES

KW - P-PROCESS

KW - Statistical model

KW - Astrophysical gamma-process

KW - Nucleosynthesis

U2 - 10.1016/j.physletb.2010.11.052

DO - 10.1016/j.physletb.2010.11.052

M3 - Letter

SN - 0370-2693

VL - 695

SP - 419

EP - 423

JO - Physical Letters B

JF - Physical Letters B

IS - 5

ER -

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

Abstract

Keywords

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