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Progress of Jinping Underground laboratory for Nuclear Astrophysics (JUNA)

Abstract

Jinping Underground laboratory for Nuclear Astrophysics (JUNA) will take the advantage of the ultra-low background of CJPL lab and high current accelerator based on an ECR source and a highly sensitive detector to directly study for the first time a number of crucial reactions occurring at their relevant stellar energies during the evolution of hydrostatic stars. In its first phase, JUNA aims at the direct measurements of 25Mg(p,γ)26Al, 19F(p,α)16O, 13C(α,n)16O and 12C(α,γ)16O reactions. The experimental setup, which includes an accelerator system with high stability and high intensity, a detector system, and a shielding material with low background, will be established during the above research. The current progress of JUNA will be given.

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Correspondence to WeiPing Liu.

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Liu, W., Li, Z., He, J. et al. Progress of Jinping Underground laboratory for Nuclear Astrophysics (JUNA). Sci. China Phys. Mech. Astron. 59, 642001 (2016). https://doi.org/10.1007/s11433-016-5785-9

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Keywords

  • direct measurement
  • underground laboratory
  • 25Mg(p,γ)26Al
  • 19F(p,α)16O
  • 13C(α,n)16O and 12C(α,γ)16O reactions
  • Gamow window
  • JUNA