First direct mass measurement of the neutron-deficient nucleus Al 24

U. Chowdhury; K. G. Leach; C. Andreoiu; A. Bader; M. Brodeur; A. Chaudhuri; A. T. Gallant; A. Grossheim; G. Gwinner; R. Klawitter; A. A. Kwiatkowski; A. Lennarz; T. D. Macdonald; J. Pearkes; B. E. Schultz; J. Dilling

doi:10.1103/PhysRevC.92.045803

First direct mass measurement of the neutron-deficient nucleus Al 24

U. Chowdhury
, K. G. Leach
, C. Andreoiu
, A. Bader
, M. Brodeur
, A. Chaudhuri
, A. T. Gallant
, A. Grossheim
, G. Gwinner
, R. Klawitter
, A. A. Kwiatkowski
, A. Lennarz
, T. D. Macdonald
, J. Pearkes
, B. E. Schultz
, J. Dilling

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

10 Scopus citations

Abstract

The first direct mass measurement of the neutron-deficient nucleus Al24 was performed via Penning-Trap Mass Spectrometry (PTMS) using TRIUMF's Ion Trap for Atomic and Nuclear science (TITAN). This measurement was facilitated by the use of TRIUMF's new Ion-Guide Laser Ion Source (IG-LIS), which reduced A=24 isobaric contamination in the delivered beam by nearly six orders of magnitude. The measured mass excess was found to be Δ=-48.86(23) keV, which is five times more precise than the value quoted in the most recent atomic mass evaluation. When combined with the relevant Al24 excitation energy, and a recent measurement of the Mg23 mass, the astrophysical Mg23(p,γ)24Al reaction resonance energy is extracted as Er=480.8(14) keV. The presented value shows a 2σ disagreement with the direct measurement of this quantity by the DRAGON recoil spectrometer.

Original language	English
Article number	045803
Journal	Physical Review C - Nuclear Physics
Volume	92
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevC.92.045803
State	Published - Oct 13 2015
Externally published	Yes

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Chowdhury, U., Leach, K. G., Andreoiu, C., Bader, A., Brodeur, M., Chaudhuri, A., Gallant, A. T., Grossheim, A., Gwinner, G., Klawitter, R., Kwiatkowski, A. A., Lennarz, A., Macdonald, T. D., Pearkes, J., Schultz, B. E., & Dilling, J. (2015). First direct mass measurement of the neutron-deficient nucleus Al 24. Physical Review C - Nuclear Physics, 92(4), Article 045803. https://doi.org/10.1103/PhysRevC.92.045803

@article{a31dbc36ebf04eeb8c47e765fd21a803,

title = "First direct mass measurement of the neutron-deficient nucleus Al 24",

abstract = "The first direct mass measurement of the neutron-deficient nucleus Al24 was performed via Penning-Trap Mass Spectrometry (PTMS) using TRIUMF's Ion Trap for Atomic and Nuclear science (TITAN). This measurement was facilitated by the use of TRIUMF's new Ion-Guide Laser Ion Source (IG-LIS), which reduced A=24 isobaric contamination in the delivered beam by nearly six orders of magnitude. The measured mass excess was found to be Δ=-48.86(23) keV, which is five times more precise than the value quoted in the most recent atomic mass evaluation. When combined with the relevant Al24 excitation energy, and a recent measurement of the Mg23 mass, the astrophysical Mg23(p,γ)24Al reaction resonance energy is extracted as Er=480.8(14) keV. The presented value shows a 2σ disagreement with the direct measurement of this quantity by the DRAGON recoil spectrometer.",

author = "U. Chowdhury and Leach, \{K. G.\} and C. Andreoiu and A. Bader and M. Brodeur and A. Chaudhuri and Gallant, \{A. T.\} and A. Grossheim and G. Gwinner and R. Klawitter and Kwiatkowski, \{A. A.\} and A. Lennarz and Macdonald, \{T. D.\} and J. Pearkes and Schultz, \{B. E.\} and J. Dilling",

note = "Publisher Copyright: {\textcopyright} 2015 American Physical Society.",

year = "2015",

month = oct,

day = "13",

doi = "10.1103/PhysRevC.92.045803",

language = "English",

volume = "92",

journal = "Physical Review C - Nuclear Physics",

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Chowdhury, U, Leach, KG, Andreoiu, C, Bader, A, Brodeur, M, Chaudhuri, A, Gallant, AT, Grossheim, A, Gwinner, G, Klawitter, R, Kwiatkowski, AA, Lennarz, A, Macdonald, TD, Pearkes, J, Schultz, BE & Dilling, J 2015, 'First direct mass measurement of the neutron-deficient nucleus Al 24', Physical Review C - Nuclear Physics, vol. 92, no. 4, 045803. https://doi.org/10.1103/PhysRevC.92.045803

TY - JOUR

T1 - First direct mass measurement of the neutron-deficient nucleus Al 24

AU - Chowdhury, U.

AU - Leach, K. G.

AU - Andreoiu, C.

AU - Bader, A.

AU - Brodeur, M.

AU - Chaudhuri, A.

AU - Gallant, A. T.

AU - Grossheim, A.

AU - Gwinner, G.

AU - Klawitter, R.

AU - Kwiatkowski, A. A.

AU - Lennarz, A.

AU - Macdonald, T. D.

AU - Pearkes, J.

AU - Schultz, B. E.

AU - Dilling, J.

PY - 2015/10/13

Y1 - 2015/10/13

N2 - The first direct mass measurement of the neutron-deficient nucleus Al24 was performed via Penning-Trap Mass Spectrometry (PTMS) using TRIUMF's Ion Trap for Atomic and Nuclear science (TITAN). This measurement was facilitated by the use of TRIUMF's new Ion-Guide Laser Ion Source (IG-LIS), which reduced A=24 isobaric contamination in the delivered beam by nearly six orders of magnitude. The measured mass excess was found to be Δ=-48.86(23) keV, which is five times more precise than the value quoted in the most recent atomic mass evaluation. When combined with the relevant Al24 excitation energy, and a recent measurement of the Mg23 mass, the astrophysical Mg23(p,γ)24Al reaction resonance energy is extracted as Er=480.8(14) keV. The presented value shows a 2σ disagreement with the direct measurement of this quantity by the DRAGON recoil spectrometer.

AB - The first direct mass measurement of the neutron-deficient nucleus Al24 was performed via Penning-Trap Mass Spectrometry (PTMS) using TRIUMF's Ion Trap for Atomic and Nuclear science (TITAN). This measurement was facilitated by the use of TRIUMF's new Ion-Guide Laser Ion Source (IG-LIS), which reduced A=24 isobaric contamination in the delivered beam by nearly six orders of magnitude. The measured mass excess was found to be Δ=-48.86(23) keV, which is five times more precise than the value quoted in the most recent atomic mass evaluation. When combined with the relevant Al24 excitation energy, and a recent measurement of the Mg23 mass, the astrophysical Mg23(p,γ)24Al reaction resonance energy is extracted as Er=480.8(14) keV. The presented value shows a 2σ disagreement with the direct measurement of this quantity by the DRAGON recoil spectrometer.

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DO - 10.1103/PhysRevC.92.045803

M3 - Article

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SN - 0556-2813

VL - 92

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 4

M1 - 045803

ER -

First direct mass measurement of the neutron-deficient nucleus Al 24

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