ADOPTED LEVELS for 123Rh
Author: Jun Chen | Citation: Nucl. Data Sheets 174, 1 (2021) | Cutoff date: 15-Apr-2021
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=11240 keV SY | S(n)= 5380 keV SY | S(p)= 14700 keV SY | Q(α)= -11450 keV SY | ||
| Reference: 2021WA16 |
| E(level) (keV) | T1/2(level) |
| 0 | 42.2 ms 18 % β- = 100 % β-n = 24.2 14 % β-2n = ? |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0 | 42.2 ms 18 % β- = 100 % β-n = 24.2 14 % β-2n = ? | Measured σ=1470 pb (2010Oh02), systematic uncertainty≈40%. Probability of misidentification of 123Rh isotope<0.001% (2010Oh02). |
2010Oh02: 123Rh 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 RIBF accelerator complex of the linear accelerator RILAC and four cyclotrons RRC, fRC, IRC and SRC. Identification of 123Rh 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, 920 counts in one setting and 11 counts in another setting were assigned to 123Rh isotope. (Q=charge state)
2015Lo04: 123Rh 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 123Rh 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 123Rh 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
2021Ha19: 123Rh ions were produced by in-flight fission of E=345 MeV primary beam of 238U on a 9Be target. Fission products were analyzed and identified by the BigRIPS seperator and the ZeroDegree spectrometer, and implanted into the Advanced Implantation detector Array (AIDA) consisting of six 128x128 strips, 1-mm thick DSSDs. Neutrons were detected with the BRIKEN neutron counter array consisting of 140 3He proportional counters. Measured β-delayed neutrons, βn(t). Deduced T1/2, β-delayed neutron emission probabilities.
Structure calculations: 2019Mo01, 2017Ko24, 2016Ma12, 2015Sa14, 2014Mi23, 2013Fa08, 2003Mo09, 1997Bo24, 1997Mo25
Q-value: ΔQ(β-)=890, ΔS(n)=500, ΔS(p)=640, ΔQ(α)=640 (syst,2021Wa16)
Q-value: S(2n)=9080 740, S(2p)=32230 640, Q(β-n)=7360 400 (syst,2021Wa16)