WINS 2023

T6LYC vs C6LYC: Comparison of Fast Neutron and γ-Ray Detector Performance for In-Beam Neutron Scattering Measurements

12 Oct 2023, 10:40

35m

Gaerttner LINAC (Rensselaer Polytechnic Institute)

New Experimental Methods and Techniques

Speaker

Patrick Copp

Description

Neutron and γ-ray dual mode sensitivity is a widely utilized detector capability for nuclear security applications and fundamental nuclear physics measurements, such as neutron scattering and $\beta$-delayed neutron emission. In particular, the pulse-shape discrimination (PSD) technique exploitable with Cs${}_2$${}^6$LiYCl${}_6$:Ce (C${}^6$LYC) scintillators permits simultaneous measurements of neutrons and γ rays from inelastic neutron scattering reactions. C${}^6$LYC also provides a relatively broad dynamic range in neutron energy that usually requires multiple detector types to attain. Recent developments of new elpasolite scintillators has led to Tl${}_6$${}^6$LiYCl${}_6$:Ce (T${}^6$LYC), a variant of C${}^6$LYC with thallium replacing cesium ions for higher effective $Z(Z_{eff}=69)$. This work focuses on characterizing the properties of T${}^6$LYC using standard γ-ray calibration sources, an unmoderated ${}^{252}$Cf fission chamber, and in-beam neutron scattering on ${}^{12}$C. Performance comparisons of T${}^6$LYC relative to C${}^6$LYC detectors from the Correlated Gamma-Neutron Array for sCattering (CoGNAC) at Los Alamos National Laboratory will be presented.

Presentation materials

Copp_WINS2023.pptx