Nuclear Data Sheets for A = 90

Lifetime measurements to investigate γ softness and shape coexistence in Mo102

“…The energies of the first-excited 2 + 1 states (filled symbols) for Sr (Z = 38), Zr (Z = 40), Mo (Z = 42), and Ru (Z = 44) isotopes with N = 52-64. Data are taken from the Nuclear Data Sheets [9][10][11][12][13][14][15][16][17][18]. Also the B(E 2; 2 + 1 → 0 + 1 ) for the Mo isotopes are shown (open symbols) where the values are taken from Refs.…”

Gamma emission from interaction of fission neutrons on nickel and zirconium

“…r is the residual calculated by means of Eq. ( 6) a Contains a contribution of the 561 keV line of 92 Zr b Corrected for the contribution of the 561-keV neutron capture line of 91 Zr c Calculated with P Eγ /ε Eγ •f Eγ = (6.9 ± 0.6) 10 8 obtained using an intensity ratio of 16.4 between 561-and 2747-keV lines of 90 Zr [26] d Determined from the double escape peak e Delayed gamma line of 90m Zr…”

“…Previous beam background analysis [2] was considered for identification and correction of possible interferences. The spectra of Identification of the gamma rays issued from inelastic scattering as well from capture of fission neutrons was done using the database NutDat 3.0 [19] and nuclear data provided in [20][21][22][23][24][25][26][27][28][29][30]. The PGNAA database [31] was used to check the presence of gamma rays from (n,γ) reactions and possible related interferences.…”

Characterization of the scintillation response of water-based liquid scintillator to alpha particles, and implications for particle identification

“…A 90 Sr source is used for the β emitter and 210 Po is used for the α emitter. The 90 Sr β decays with Q-value 546 keV to 90 Y, which then β decays with Q-value 2.28 MeV and half-life 64 h [44]. The 210 Po primarily decays via α emission with an energy of 5.3 MeV to the ground state of 206 Pb with a very small branch (0.001%) to an excited state that gives an 803 keV γ and 4.5 MeV α [45].…”