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NucleoSynthesis of Galactic 26 Al 25 Al+p Resonances Peter Parker, Yale University

NucleoSynthesis of Galactic 26 Al 25 Al+p Resonances Peter Parker, Yale University Catherine Deibel, Rachel Lewis, Anuj Parikh, Christopher Wrede Jac Caggiano, Jason Clark. ORNL - 23 Oct.’06. 26 Al (1809 keV) map of our Galaxy GRO-Comptel. 25 Al Branch Point :.

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NucleoSynthesis of Galactic 26 Al 25 Al+p Resonances Peter Parker, Yale University

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  1. NucleoSynthesis of Galactic 26Al 25Al+p Resonances Peter Parker, Yale University Catherine Deibel, Rachel Lewis, Anuj Parikh, Christopher Wrede Jac Caggiano, Jason Clark ORNL - 23 Oct.’06

  2. 26Al (1809 keV) map of our GalaxyGRO-Comptel

  3. 25Al Branch Point: (p, g)26Si(b+n)26mAl(b+n)26MgGS 24Mg(p,g)25Al (b+n)25Mg(p,g)26Al(b+n)26*Mg(g)26MgGS

  4. 25Al(p,g)26Si  Resonance Searches: 29Si(3He,6He)26Si (Caggiano) 24Mg(3He,n)26Si (Parpottas) 28Si(p,t)26Si (Bardayan) [ 26Al(3He,t)26Si(p)25Al ] (Yale) TRIUMF E1071 (C. Deibel) Direct Measurement: TRIUMF DRAGON E922 (A. Chen)

  5. 29Si(3He,6He)27Si (Yale): Caggiano, et al. Phys.Rev.C 65,055801(2002)

  6. 24Mg(3He,n)26Si (Ohio Univ.):Parpottas, et al.Phys.Rev.C 70,065805(2004).

  7. 28Si(p,t)26Si (ORNL):Bardayan, et al.Phys.Rev.C 74,045804(2006).

  8. 28Si(p,t)26Si (ORNL):Bardayan, et al.Phys.Rev.C 74,045804(2006).

  9. 25Al(p,g)26Si:Parpottas, et al.Phys.Rev.C 73,049907(E) (2006).

  10. 26Al Implanted Target: (TRIUMF-ISAC Proposal E1071) • HRMS  4101026Al/sec at an energy of 51 keV  101726Al/cm2 rastered into a 3-mm diameter circle • in 4 to 7 days, into a 40 μg/cm2 carbon foil • Contamination: About 1 to 10% 26Na(b-n)26Mg, But  no27Al With this target, in conjunction with the Yale split-pole spectrograph and the YLSA silicon array, we project a 26Al(3He,t)26Si*(p)25Al coincidence rate of 1/hour.

  11. Yale LampShade Array - YLSA 500-m thick Silicon 5 Sectors; 16 strips each Covering 131°qlab166° 80-energy and 80-time signals

  12. 26Al(3He,t)26Si*(p)25Al E YLSA vs. Focal Plane

  13. 27Al(3He,t)27Si*(p)26Al

  14. 27Al(3He,t)27Si*(p)26Al

  15. Yale – Nuclear Astrophysics Group Faculty and Post Doc: Peter Parker Jason Clark Current Graduate Students: Christopher Wrede (4th year) Catherine Deibel (5th year) Most Recent PhDs: Anuj Parikh (’06), PostDoc @ Barcelona Rachel Lewis (‘05), PostDoc @ Univ.of York Dale Visser (’03), Microsoft, Seattle Alan Chen (’00), Faculty @ McMaster Dan Bardayan (’99DNP), Wigner Fellow @ ORNL Recent PostDocs: Jac Caggiano @ Hanford Lab, Richland, WA Will Bradfield-Smith @ Univ.Western Ontario

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