Details

Autor(en) / Beteiligte

• Teh, F. C. E.
• Lee, J.-W.
• Zhu, K.
• Brown, K. W.
• Chajecki, Z.
• Lynch, W. G.
• Tsang, M. B.
• Anthony, A.
• Barney, J.
• Dell'Aquila, D.
• Estee, J.
• Hong, B.
• Jhang, G.
• Khanal, O. B.
• Kim, Y. J.
• Lee, H. S.
• Lee, J. W.
• Manfredi, J.
• Nam, S. H.
• Niu, C. Y.
• Park, J. H.
• Sweany, S.
• Tsang, C. Y.
• Wang, R.
• Wu, H.

Titel

Value-Assigned Pulse Shape Discrimination for Neutron Detectors

Ist Teil von

• IEEE transactions on nuclear science, 2021-08, Vol.68 (8), p.2294-2300

Ort / Verlag

New York: IEEE

Erscheinungsjahr

2021

Quelle

IEEE Electronic Library (IEL)

Beschreibungen/Notizen

• Using the waveforms from a digital electronic system, an offline analysis technique on pulse shape discrimination (PSD) has been developed to improve the neutron-gamma separation in a bar-shaped NE-213 scintillator that couples to a photomultiplier tube (PMT) at each end. The new improved method, called the "valued-assigned PSD" (VPSD), assigns a normalized fitting residual to every waveform as the PSD value. This procedure then facilitates the incorporation of longitudinal position dependence of the scintillator, which further enhances the PSD capability of the detector system. In this article, we use radiation emitted from an AmBe neutron source to demonstrate that the resulting neutron-gamma identification has been much improved when compared to the traditional technique that uses the geometric mean (GM) of light outputs from both PMTs. The new method has also been modified and applied to a recent experiment at the National Superconducting Cyclotron Laboratory (NSCL) that uses an analog electronic system.