Speaker
Description
Fast-Timing measurements in isotopes produced by transfer or fusion-evaporation reactions is challenging due to the appearance of several interfering $\gamma$-rays from different reaction channels. It is therefore necessary to clean up the reaction channel, or rather the $\gamma$-ray spectra, of the isotope of interest from contaminations. Usually the use of HPGe gates can be applied to clean up the spectra which corresponds to a high loss of statistics due to the efficiency of the HPGe detectors. More convenient is the use of particle detectors with a gate on the ejectile of the reaction or in the case that the isotope of interest decays via $\alpha$-decay, the $\alpha$-ray. Furthermore, it is possible to use physical properties of the isotope of interest, such as isomeric states or the lifetime of the $\alpha$-decaying ground state.
As an example of the use of gates on particles or "physical properties", I will present the recent results of the $^{212}$Po transfer reaction and, in particular, the $^{214}$Rn fusion-evaporation experiment at the ROSPHERE $\gamma$-ray detector array at IFIN-HH in Magurele, Romania. The particle detector used was the SORCERER array consisting by solar cells.
