Speaker
Description
This poster presents the methodology and results of an experimental study on inelastic proton-induced excitations of a $^{64}$Ni target at beam energy E = 180 MeV. The measurements were conducted at the Cyclotron Centre Bronowice (CCB) of the Henryk Niewodniczański Institute of Nuclear Physics PAN in Krakow. The experiment utilized a proton beam to excite the target nuclei, followed by the detection of inelastically scaterred proton and gamma-rays emitted during the de-excitation process.
Protons were detected using the 30-detector KRATTA array, while gamma radiation was recorded using a combination of four LaBr$_3$(Ce) detectors and the PARIS array, which consists of LaBr$_3$:NaI and CeBr3:NaI phoswich detectors. The data analysis involved energy and efficiency calibration, time-stability monitoring, and the application of timing corrections for precise coincidence event selection.
The core of the data treatment was the construction of E$^*$ − E$_{\gamma}$ matrices, correlating the excitation energy determined from proton scattering with the energy of the subsequent gamma-ray de-excitation. These matrices enabled the identification of energy transitions in $^{64}$Ni, which were found to be consistent with NNDC database values. Furthermore, the poster addresses the primary technical challenges encountered during data analysis. These results serve as a foundational stage for future spectroscopic studies and the investigation of Pygmy Dipole Resonances (PDR) decay in the $^{64}$Ni.