ADOPTED LEVELS for 115Tc
Author: Balraj Singh | Citation: ENSDF | Cutoff date: 20-JUL-2015
Author: Jean Blachot | Citation: Nucl. Data Sheets 113, 2391 (2012) | Cutoff date: 1-Sep-2012
Full ENSDF file | Adopted Levels (PDF version)
Q(β-)=10400 keV SY | S(n)= 5210 keV SY | S(p)= 13390 keV SY | Q(α)= -9460 keV SY | ||
Reference: 2012WA38 |
E(level) (keV) | T1/2(level) |
0 | 78 ms 2 % β- = 100 % β-n = ? |
Additional Level Data and Comments:
E(level) | Jπ(level) | T1/2(level) | Comments |
0 | 78 ms 2 % β- = 100 % β-n = ? | Theoretical T1/2=34.5 ms, %β-n=25.6 (2003Mo09). |
1994Be24, 1998Do08: Produced from 208Pb(U,f) E=750 MeV/nucleon. Identified with on-line fragment separator at GSI; time of flight and energy loss measurements, no half-life measurement.
2006Mo07: 9Be(136Xe,X),E=121.8 MeV/nucleon. The A1900 fragment separator at NSCL-MSU facility was used to separate nuclei of interest. The secondary beam was implanted into β-decay arrangement consisting of Si(PIN) detectors and Si strip detectors (DSSD) and single-sided Si strip detectors (SSSD). Implantation and decay events were time stamped and correlated. Measured half-life from ion-β correlated spectrum
2008Be33: 115Tc produced in 9Be(136Xe,X),E=1 GeV/nucleon, measured production σ at GSI 2011Ni01: 115Tc produced in Be(238U,F),E=345 MeV/nucleon, the beam produced by the cascade operation of the RBIF complex of accelerators at RIKEN. Target=550 mg/cm2. Identification of 115Tc made on the basis of magnetic rigidity, time-of-flight and energy loss. The separated nuclei were implanted in a nine-layer double-sided silicon-strip detector (DSSSD). Correlations were recorded between the heavy ions and β rays. The half-life of 115Tc isotope was measured from the correlated ion-β decay curves and maximum likelihood analysis technique. In the analysis of the decay curve, β-detection efficiency, background rate, daughter and granddaughter (including those populated in delayed neutron decays) half-lives, and β-delayed neutron emission probabilities were considered. Comparison of measured half-lives with FRDM+QRPA and KTUY+GT2 calculations
2015Lo04: 115Tc 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 115Tc 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 115Tc 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
2013Fa05: theoretical calculation of T1/2 and %β-n
Q-value: ΔQ(β-)=210, ΔS(n)=220, ΔS(p)=360, ΔQ(α)=360 (2012Wa38)
Q-value: Q(β-n)=6240 200, S(2n)=9240 200, S(2p)=29980 450 (syst,2012Wa38)