Cross sections of the 21Ne(α, n)24Mg and 22Ne(α, n)25Mg reactions at low energies of astrophysical interest

H. B. Mak; D. Ashery; C. A. Barnes

doi:10.1016/0375-9474(74)90496-5

Cross sections of the ²¹Ne(α, n)²⁴Mg and ²²Ne(α, n)²⁵Mg reactions at low energies of astrophysical interest

H. B. Mak, D. Ashery, C. A. Barnes

Research output: Contribution to journal › Article › peer-review

Abstract

The ²¹Ne(α, n)²⁴Mg reaction has been studied over the energy range E_c.m. = 1.4-2.57MeV, by neutron time-of-flight spectroscopy and by the detection of the subsequent γ-ray transitions in ²⁴Mg. The astrophysical cross-section factor S(0) was determined and reaction rates were calculated for temperatures up to 5×10⁹°K. In favorable circumstances, this reaction can provide a significant neutron flux for nucleosynthesis. The absolute normalization of the cross sections obtained in our earlier work on the reaction ²²Ne(α, n)²⁵Mg has also been verified.

Original language	English
Pages (from-to)	493-505
Number of pages	13
Journal	Nuclear Physics A
Volume	226
Issue number	3
DOIs	https://doi.org/10.1016/0375-9474(74)90496-5
State	Published - 8 Jul 1974
Externally published	Yes

Keywords

Nuclear reactions

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10.1016/0375-9474(74)90496-5

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title = "Cross sections of the 21Ne(α, n)24Mg and 22Ne(α, n)25Mg reactions at low energies of astrophysical interest",

abstract = "The 21Ne(α, n)24Mg reaction has been studied over the energy range Ec.m. = 1.4-2.57MeV, by neutron time-of-flight spectroscopy and by the detection of the subsequent γ-ray transitions in 24Mg. The astrophysical cross-section factor S(0) was determined and reaction rates were calculated for temperatures up to 5×109°K. In favorable circumstances, this reaction can provide a significant neutron flux for nucleosynthesis. The absolute normalization of the cross sections obtained in our earlier work on the reaction 22Ne(α, n)25Mg has also been verified.",

keywords = "Nuclear reactions",

author = "Mak, {H. B.} and D. Ashery and Barnes, {C. A.}",

note = "Funding Information: t Supported in part by the National Science Foundation [GP-280271. It Present address: Physics Department, Queen{\textquoteright}s University, Kingston, Ontario, Canada. ttt Present address: Physics Department, Tel Aviv University, Ramat Aviv, Tel Aviv, Israel.",

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doi = "10.1016/0375-9474(74)90496-5",

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AU - Mak, H. B.

AU - Ashery, D.

AU - Barnes, C. A.

N1 - Funding Information: t Supported in part by the National Science Foundation [GP-280271. It Present address: Physics Department, Queen’s University, Kingston, Ontario, Canada. ttt Present address: Physics Department, Tel Aviv University, Ramat Aviv, Tel Aviv, Israel.

PY - 1974/7/8

Y1 - 1974/7/8

N2 - The 21Ne(α, n)24Mg reaction has been studied over the energy range Ec.m. = 1.4-2.57MeV, by neutron time-of-flight spectroscopy and by the detection of the subsequent γ-ray transitions in 24Mg. The astrophysical cross-section factor S(0) was determined and reaction rates were calculated for temperatures up to 5×109°K. In favorable circumstances, this reaction can provide a significant neutron flux for nucleosynthesis. The absolute normalization of the cross sections obtained in our earlier work on the reaction 22Ne(α, n)25Mg has also been verified.

AB - The 21Ne(α, n)24Mg reaction has been studied over the energy range Ec.m. = 1.4-2.57MeV, by neutron time-of-flight spectroscopy and by the detection of the subsequent γ-ray transitions in 24Mg. The astrophysical cross-section factor S(0) was determined and reaction rates were calculated for temperatures up to 5×109°K. In favorable circumstances, this reaction can provide a significant neutron flux for nucleosynthesis. The absolute normalization of the cross sections obtained in our earlier work on the reaction 22Ne(α, n)25Mg has also been verified.

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JO - Nuclear Physics A

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Cross sections of the ²¹Ne(α, n)²⁴Mg and ²²Ne(α, n)²⁵Mg reactions at low energies of astrophysical interest

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