Journal of Physics B Atomic and Molecular Physics · 1968 · 12 citations · 0 references
Natural SciencesPhysicsCrystal StructureNuclear PhysicsSpectroscopyEmission SpectroscopyGamma-ray SpectroscopyEmission SpectrumForbidden TransitionsGamma SpectroscopyGamma-ray Line EmissionGamma-ray Line IdentificationGamma-ray Spectral Line ShapesQuadrupole InteractionQuadrupole Splitting
The L emission spectrum of thulium 69 has been investigated in the gamma region using a 40 cm curved mica crystal spectrograph of the transmission type.Three new diagram lines at 1246.3, 1283.1 and 1232.4X.U. have been reported for the first time.The first corresponds to the quadrupole transition LINIv,v(~II).The other two have been assigned to the forbidden transitions LINI and LIOI, respectively.The measurements on the previously known diagram lines in the region have been compared with those of the earlier workers.