LUCRECIA experiment

The pandemonium effect concerns the difficulty in using high resolution detectors in beta decay experiments, to construct a complex level scheme.

Low efficiency detectors will lead to some gamma ray transitions to be omitted from the data set, and the determined feeding pattern is incorrect.

A total absorption spectrometer is made of a scintillator crystal, covering almost all of the solid angle surrounding the radioactive sample.

[5] LUCRECIA is installed at the end of one of the ISOLDE beam lines, and consists of the TAS with a tape station for implanting the radioactive activity.

By changing the position of the rollers, it is possible to implant the beam directly in the centre of the TAS, which allows for measurements of more exotic nuclei with shorter half-lives or outside the spectrometer and the moved into the detector.