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 Decay of 6He


Results from the experiment made at CERN-ISOLDE (IS505) in August 2012. The goal was to measure the very weak decay branch of 6He into an alpha particle and a deuteron and reconstruct their energy spectrum at low energies, below 400 keV (CM). The bunches of 6He ions, accelerated to 3 MeV/u by REX-Isolde, were implanted into the OTPC chamber. The counting gas was 98% He + 2% N2. After implantation, the decays were recorded for about 800 ms.
0_Ions_only 1_ImplantationHe 2_Beta_only 2_ImplantationHe_beta 3_ImplantationHe_beta_deuteron
4_CCD_2 5_PMT_2 6_CCD_3 7_PMT_3 a0_Decay_CCD_134
a1_Decay_PMT_134 a2_Decay_CCD_99 a3_Decay_PMT_99 a4_Decay_icon1 a5_Decay_icon2
a6_Event_13_310_CCD b1_DriftVelocity2 b_DriftVelocity1 c_Isolde_Fig2a d_TwoAlphas