Ponente
Descripción
Novel scintillation materials are expected to open new opportunities for both fundamental nuclear-physics studies and societal applications.
In this contribution we summarize some of the recent research and developments carried out with new scintillation materials at the Gamma-Ray and Neutron Spectroscopy Group of IFIC (CSIC-UV). Researched detectors focus on scintillation materials with superior neutron-gamma discrimination capabilities, high detection efficiency and fast time response.
Aiming at radiative neutron-capture experiments, we are developing a new generation of total-energy detector arrays for CERN n_TOF based on novel organic crystals of deuterated stilbene (stilbene-d12). Such developments will enable superior detection sensitivities in radiative neutron-capture cross-section measurements; they will open the possibility for (n,n) and (n,n’) measurements over broad neutron-energy ranges and will reduce neutron-induced backgrounds. Additionally, stilbene-d12 will also enable a safe handling and use of the detectors themselves, when compared to hazardous liquid C6D6 scintillators conventionally used over the last 30-40 years. Coupling these solid scintillators to SiPM photosenors represents yet a challenge, which we will tackle in the forthcoming years.
Inorganic scintillation crystals, such as CLYC6 and CLLBC, show both high neutron-gamma discrimination capability, fast timing and high gamma-ray spectroscopic resolution. We are investigating these scintillating materials as potential candidates for hybrid neutron-gamma vision concepts, with potential applications in radiation monitoring and medical physics. Developments towards neutron-gamma discrimination in position-sensitive CLYC6-SiPM based systems will be presented and discussed.
