Author: Balraj Singh |  Citation: ENSDF |  Cutoff date: 20-JUL-2015 

 Full ENSDF file | Adopted Levels (PDF version) 

Q(β-)=9760 keV SYS(n)= 5440 keV SYS(p)= 17520 keV CAQ(α)= -11670 keV CA
Reference: 2012WA38,1997MO25

General Comments:

2010Oh02: 122Ru nuclide identified in Be(238U,F) and Pb(238U,F) reactions with a 238U86+ beam energy of 345 MeV/nucleon produced by the cascade operation of the RBIF accelerator complex of the linear accelerator RILAC and four cyclotrons RRC, fRC, IRC and SRC. Identification of 122Ru nuclei was made on the basis of magnetic rigidity, time-of-flight and energy loss of the fragments using BigRIPS fragment separator. Experiments performed at RIKEN facility. Based on α/Q spectrum and Z versus α/Q plot, 15 counts were assigned to 122Ru isotope. (Q=charge state)

2015Lo04: 122Ru nuclide produced at RIBF-RIKEN facility in 9Be(238U,F) reaction at E=345 MeV/nucleon with an average intensity of 6×1010 ions/s. Identification of 122Ru was made by determining atomic Z and mass-to-charge ratio α/Q, where Q=charge state of the ions. The selectivity of ions was based on magnetic rigidity, time-of-flight and energy loss. The separated nuclei were implanted at a rate of 50 ions/s in a stack of eight double-sided silicon-strip detector (WAS3ABi), surrounded by EURICA array of 84 HPGe detectors. Correlations were recorded between the implanted ions and β rays. The half-life of 122Ru isotope was measured from the correlated ion-β decay curves and maximum likelihood analysis technique as described in 2014Xu07. Comparison of measured half-lives with FRDM+QRPA, KTUY+GT2 and DF3+CQRPA theoretical calculations

2010No01: calculated potential energy surface, levels, S(2n), B(E2)

1980Va15: calculated levels, B(E2), magnetic dipole and electric quadrupole moments, S(2n), rms radius

Q-value: Estimated uncertainties (2012Wa38): 590 for Q(β-), 640 for S(n)

Q-value: Q(β-) and S(n) from 2012Wa38; S(p) and Q(α) from theory (1997Mo25)

Q-value: S(2n)=8540 640, Q(β-n)=5950 590. S(2p)=32760 (1997Mo25,theory)

Jπ(level) T1/2(level)
  0 0+ 25 ms 1 
% β- = 100
% β-n = ?
% β-2n = ?

Back to top

Back to top

Additional Level Data and Comments:

  00+ 25 ms 1 
% β- = 100
% β-n = ?
% β-2n = ?
Measured σ=13 pb (2010Oh02), systematic uncertainty≈40%. Probability of misidentification of 122Ru isotope<0.001% (2010Oh02).

Back to top