Modular Total Absorption Spectrometer at the HRIBF (ORNL, Oak Ridge)

The Modular Total Absorption Spectrometer (MTAS) array has been designed, constructed, characterized, and applied to the decay studies of 238U fission products at the Holifield Radioactive Ion Beam Facility (HRIBF) at Oak Ridge National Laboratory. A MTAS commissioning run was performed in January 2012 at the mass separator on-line to the HRIBF Tandem accelerator. Preliminary results of MTAS data confirm known decay patterns of 142Ba and 142La deduced from an earlier study using a total absorption spectrometer technique.