Adapted from the evaluation of ²²⁰Bi by B. Singh and M. Birch (McMaster University) on May 15, 2011 and the XUNDL dataset of 2016Ca25 and 2017Ca12 compiled by B. Singh on August 14, 2017

2017Ca12,2016Ca25: ²²⁰Bi was produced by fragmentation of E=1 GeV/nucleon ²³⁸U beam from SIS-18 synchrotron at GSI on a ⁹Be target of thickness 1.6 g/cm². Reaction products were separated, identified by GSI Fragment Separator (FRS) using Bρ-ΔE-Bρ technique, and implanted into a stack of double-sided silicon strip detectors SIMBA. Measured implant-β time correlation. Deduced T_1/2. Comparison with theoretical calculations.

2010Al24: ²²⁰Bi nuclide was produced via ⁹Be(²³⁸U,X) reaction with a beam energy of 1 GeV/nucleon produced by the SIS synchrotron at GSI facility on a 2500 mg/cm^{2 9}Be target. The fragment residues were analyzed with the high resolving power magnetic spectrometer Fragment separator (FRS). The identification of nuclei was made on the basis of magnetic rigidity, velocity, time-of-flight, energy loss and atomic number of the fragments using two plastic scintillators and two multisampling ionization chambers. The FRS magnet was tuned to center on ²¹⁰Au, ²¹⁶Pb, ²¹⁹Pb, ²²⁷At and ²²⁹At nuclei along the central trajectory of FRS. Measured σ, yields. See also previous report 2009Al32 by the same group as 2010Al24

Structure calculations:

2019Mo01: calculated β-delayed neutron emsission probabilites, T_1/2, spins

2009Go27: used the statistical approach and the combined dynamical statistical approach to calculate fission rate, and dependence of fission probability and average prescission multiplicities of neutrons, protons and α particles during the fission process

2003Bo06: Calculated T_1/2 using shell model and quasiparticle RPA.

2003Bo48: Used microscopic models to calculate T_1/2.

Q-value: ΔQ(β^-)=300, ΔS(n)=360, ΔS(p)=500, ΔQ(α)=420 (syst,2021Wa16)

Q-value: S(2n)=8400 300, S(2p)=17330 500, Q(β^-n)=210 300 (syst,2021Wa16)