Jukka Koponen

Mass of astrophysically relevant 31Cl and the breakdown of the isobaric multiplet mass equation

The mass of

High-precision mass measurements for the isobaric multiplet mass equation at A = 52

^{31}

Single and Double Beta-Decay Q Values among the Triplet ^{96}Zr, ^{96}Nb, and ^{96}Mo.

Cl has been measured with the JYFLTRAP double Penning trap mass spectrometer at the Ion-Guide Isotope Separator On-Line (IGISOL) facility. The determined mass-excess value, -7034.7(34) keV, is 15 times more precise than in the Atomic Mass Evaluation 2012. The quadratic form of the isobaric multiplet mass equation for the T=3/2 quartet at A=31 fails (

Characterization and performance of the DTAS detector

\chi^2_n

Mass Measurements for the rp Process

=11.6) and a non-zero cubic term, d=-3.5(11) keV, is obtained when the new mass value is adopted.

Experimental study of 100Tc β decay with total absorption γ-ray spectroscopy

^{31}

Study of the

Cl has been found to be less proton-bound with a proton separation energy of

\beta

S_p

-decay of

=265(4) keV. Energies for the excited states in

^{100}

^{31}