A new technique for measuring astrophysically important (α,p) reactions

K. Y. Chae; D. W. Bardayan; C. D. Nesaraja; M. S. Smith; S. H. Ahn; A. Ayres; A. Bey; K. L. Jones; S. T. Pittman; M. E. Howard; P. D. O'Malley; R. L. Kozub; M. Matoš; B. H. Moazen; W. A. Peters

A new technique for measuring astrophysically important (α,p) reactions

K. Y. Chae, D. W. Bardayan, C. D. Nesaraja, M. S. Smith, S. H. Ahn, A. Ayres, A. Bey, K. L. Jones, S. T. Pittman, M. E. Howard, P. D. O'Malley, R. L. Kozub, M. Matoš, B. H. Moazen, W. A. Peters

Research output: Contribution to journal › Conference article › peer-review

Abstract

Studying (α,p) reactions of astrophysical interest with radioactive beams presents serious challenges because of the difficult nature of the target. We have developed a new approach for the measurement of (α,p) reactions using heavy ion beams in inverse kinematics and have measured the ⁴He(¹⁹F,¹H)²²Ne reaction as a demonstration. ¹⁹F beams were used at the Holifield Radioactive Ion Beam Facility (HRIBF) tandem accelerator in Oak Ridge National Laboratory (ORNL) to bombard a large scattering chamber filled with ⁴He gas. Recoiling protons from the reactions were detected by the large area annular silicon strip detector array (SIDAR). The ¹⁹F(α,p) and ¹⁹F(α,p') excitation functions were measured over the energy range of E _c.m. ∼1-2.1 MeV, demonstrating the viability of the technique.

Original language	English
Journal	Proceedings of Science
State	Published - 2010
Event	11th Symposium on Nuclei in the Cosmos, NIC 2010 - Heidelberg, Germany Duration: Jul 19 2010 → Jul 23 2010

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@article{0894e7406ee84511b541b5d6b7d43060,

title = "A new technique for measuring astrophysically important (α,p) reactions",

abstract = "Studying (α,p) reactions of astrophysical interest with radioactive beams presents serious challenges because of the difficult nature of the target. We have developed a new approach for the measurement of (α,p) reactions using heavy ion beams in inverse kinematics and have measured the 4He(19F,1H)22Ne reaction as a demonstration. 19F beams were used at the Holifield Radioactive Ion Beam Facility (HRIBF) tandem accelerator in Oak Ridge National Laboratory (ORNL) to bombard a large scattering chamber filled with 4He gas. Recoiling protons from the reactions were detected by the large area annular silicon strip detector array (SIDAR). The 19F(α,p) and 19F(α,p') excitation functions were measured over the energy range of E c.m. ∼1-2.1 MeV, demonstrating the viability of the technique.",

author = "Chae, {K. Y.} and Bardayan, {D. W.} and Nesaraja, {C. D.} and Smith, {M. S.} and Ahn, {S. H.} and A. Ayres and A. Bey and Jones, {K. L.} and Pittman, {S. T.} and Howard, {M. E.} and O'Malley, {P. D.} and Kozub, {R. L.} and M. Mato{\v s} and Moazen, {B. H.} and Peters, {W. A.}",

year = "2010",

language = "English",

journal = "Proceedings of Science",

issn = "1824-8039",

publisher = "Sissa Medialab",

note = "11th Symposium on Nuclei in the Cosmos, NIC 2010 ; Conference date: 19-07-2010 Through 23-07-2010",

}

TY - JOUR

T1 - A new technique for measuring astrophysically important (α,p) reactions

AU - Chae, K. Y.

AU - Bardayan, D. W.

AU - Nesaraja, C. D.

AU - Smith, M. S.

AU - Ahn, S. H.

AU - Ayres, A.

AU - Bey, A.

AU - Jones, K. L.

AU - Pittman, S. T.

AU - Howard, M. E.

AU - O'Malley, P. D.

AU - Kozub, R. L.

AU - Matoš, M.

AU - Moazen, B. H.

AU - Peters, W. A.

PY - 2010

Y1 - 2010

N2 - Studying (α,p) reactions of astrophysical interest with radioactive beams presents serious challenges because of the difficult nature of the target. We have developed a new approach for the measurement of (α,p) reactions using heavy ion beams in inverse kinematics and have measured the 4He(19F,1H)22Ne reaction as a demonstration. 19F beams were used at the Holifield Radioactive Ion Beam Facility (HRIBF) tandem accelerator in Oak Ridge National Laboratory (ORNL) to bombard a large scattering chamber filled with 4He gas. Recoiling protons from the reactions were detected by the large area annular silicon strip detector array (SIDAR). The 19F(α,p) and 19F(α,p') excitation functions were measured over the energy range of E c.m. ∼1-2.1 MeV, demonstrating the viability of the technique.

AB - Studying (α,p) reactions of astrophysical interest with radioactive beams presents serious challenges because of the difficult nature of the target. We have developed a new approach for the measurement of (α,p) reactions using heavy ion beams in inverse kinematics and have measured the 4He(19F,1H)22Ne reaction as a demonstration. 19F beams were used at the Holifield Radioactive Ion Beam Facility (HRIBF) tandem accelerator in Oak Ridge National Laboratory (ORNL) to bombard a large scattering chamber filled with 4He gas. Recoiling protons from the reactions were detected by the large area annular silicon strip detector array (SIDAR). The 19F(α,p) and 19F(α,p') excitation functions were measured over the energy range of E c.m. ∼1-2.1 MeV, demonstrating the viability of the technique.

UR - http://www.scopus.com/inward/record.url?scp=84887454956&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:84887454956

SN - 1824-8039

JO - Proceedings of Science

JF - Proceedings of Science

T2 - 11th Symposium on Nuclei in the Cosmos, NIC 2010

Y2 - 19 July 2010 through 23 July 2010

ER -

A new technique for measuring astrophysically important (α,p) reactions

Abstract

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