The previously accepted spin values of the 991 and 1599 keV levels in 140 Sm have been revised and established as 2 + and 0 (+) , respectively. The γ-γ angular correlation method was used to determine the new spin values. The excited low-spin levels in 140 Sm were populated in the 140 Eu→ 140 Sm and 140 Gd→ 140 Eu→ 140 Sm decays. The 140 Gd and 140 Eu nuclei were produced in the 112 Cd + 32 S reaction at a beam energy of 155 MeV.

Electromagnetic transition strengths and spectroscopic quadrupole moments for 140 Sm were measured by means of multi-step Coulomb excitation with radioactive beam at the ISOLDE facility at CERN. A complementary experiment was performed at the Heavy Ion Laboratory in Warsaw to assign spins for non-yrast states using the angular correlation technique. Based on the new experimental data previous spin assignments need to be revised.

Targets required to determine the parameters of the 100Mo(p,xn)99mTc reaction and to estimate the yield of the 99mTc production were prepared starting with powder material. Material, melted with electron beam gun into solid bead, was reshaped into foil mechanically. Targets were prepared by powder melting and hot flattening of the droplet followed by cold rolling. Procedure allowed preparation of thick (in the range of hundreds of microns) and thin (down to 250 nm) foils.

The designed and constructed at the University of Lodz an electron spectrometer is devoted to "in-beam" measurements. The apparatus is characterized by high efficiency up to 9%, good energy resolution (FWHM = 5 keV at 482 keV) and, what is very important good suppression of delta electrons, positrons, and photons emitted by the targets. This achievement was obtained using a combination of magnetic field in two different layouts: perpendicular and parallel to the axis of the spectrometer being orthogonal to the beamline. The conversion-electron spectrometer coupled to the EAGLE array was successfully tested in an "in-beam" measurement.