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A convolutional neural network (CNN) architecture is developed to improve the pulse shape discrimination (PSD) power of the gadolinium-loaded organic liquid scintillation detector to reduce the fast neutron background in the inverse beta…

Organic scintillators are important in advancing nuclear detection and particle physics experiments. Achieving a high signal-to-noise ratio necessitates efficient pulse shape discrimination techniques to accurately distinguish between…

Instrumentation and Detectors · Physics 2025-02-11 Fengzhao Shen , Tao Li , Jingkui He , Shenghui Xie , Yuehuan Wei , Tuchen Huang , Wei Wang

We demonstrate the use of a convolutional neural network to perform neutron-gamma pulse shape discrimination, where the only inputs to the network are the raw digitised SiPM signals from a dual scintillator detector element made of…

Instrumentation and Detectors · Physics 2018-07-19 J. Griffiths , S. Kleinegesse , D. Saunders , R. Taylor , A. Vacheret

Pulse shape discrimination (PSD) is widely used in particle and nuclear physics. Specifically in liquid scintillator detectors, PSD facilitates the classification of different particle types based on their energy deposition patterns. This…

High Energy Physics - Experiment · Physics 2024-04-23 Jie Cheng , Xiao-Jie Luo , Gao-Song Li , Yu-Feng Li , Ze-Peng Li , Hao-Qi Lu , Liang-Jian Wen , Michael Wurm , Yi-Yu Zhang

An essential metric for the quality of a particle-identification experiment is its statistical power to discriminate between signal and background. Pulse shape discrimination (PSD) is a basic method for this purpose in many nuclear,…

Instrumentation and Detectors · Physics 2024-05-17 Shubham Dutta , Sayan Ghosh , Satyaki Bhattacharya , Satyajit Saha

Various pulse shape discrimination methods have been used to solve the neutron-gamma discrimination problem. But most of them are limited to off-line calculation due to the computation amount and FPGA performance. In order to realize real…

Instrumentation and Detectors · Physics 2022-01-26 Haoqi Ye , Ge Jin , Lian Chen

A Bayesian approach is proposed for pulse shape discrimination of photons and neutrons in liquid organic scinitillators. Instead of drawing a decision boundary, each pulse is assigned a photon or neutron confidence probability. This allows…

Data Analysis, Statistics and Probability · Physics 2017-03-06 Mateusz Monterial , Peter Marleau , Shaun Clarke , Sara Pozzi

There are recent interests with CsI(Tl) scintillating crystals for Dark Matter experiments. The key merit is the capability to differentiate nuclear recoil (nr) signatures from the background $\beta / \gamma$-events due to ambient…

Data Analysis, Statistics and Probability · Physics 2009-11-10 S. C. Wu

We propose a new method for the discrimination of sub-micron nuclear recoil tracks from an instrumental background in fine-grain nuclear emulsions used in the directional dark matter search. The proposed method uses a 3D Convolutional…

High Energy Physics - Experiment · Physics 2022-02-17 Artem Golovatiuk , Andrey Ustyuzhanin , Andrey Alexandrov , Giovanni De Lellis

This study shows an implementation of neutron-gamma pulse shape discrimination (PSD) using a two-dimensional convolutional neural network. The inputs to the network are snapshots of the unprocessed, digitized signals from a BC501A detector.…

Instrumentation and Detectors · Physics 2023-06-19 Annesha Karmakar , Anikesh Pal , G. Anil Kumar , Bhavika , V. Anand , Mohit Tyagi

Pulse profile modelling is a relativistic ray-tracing technique that can be used to infer masses, radii and geometric parameters of neutron stars. In a previous study, we looked at the performance of this technique when applied to…

This review presents a comprehensive survey and benchmark of pulse shape discrimination (PSD) algorithms for radiation detection, classifying nearly sixty methods into statistical (time-domain, frequency-domain, neural network-based) and…

Machine Learning · Computer Science 2026-04-21 Haoran Liu , Yihan Zhan , Mingzhe Liu , Yanhua Liu , Peng Li , Zhuo Zuo , Bingqi Liu , Runxi Liu

Particle tracking is a powerful biophysical tool that requires conversion of large video files into position time series, i.e. traces of the species of interest for data analysis. Current tracking methods, based on a limited set of input…

Quantitative Methods · Quantitative Biology 2018-10-09 Jay M. Newby , Alison M. Schaefer , Phoebe T. Lee , M. Gregory Forest , Samuel K. Lai

The basic principles of detection of fast neutrons with liquid scintillator detectors are reviewed, together with a real example in the form of the Neutron Wall array. Two of the challenges in neutron detection, discrimination of neutrons…

Nuclear Experiment · Physics 2008-12-08 P. -A. Söderström

The publicly accessible dataset includes neutron and gamma-ray pulse signals for conducting pulse shape discrimination experiments. Several traditional and recently proposed pulse shape discrimination algorithms are utilized to evaluate the…

Signal Processing · Electrical Eng. & Systems 2024-04-09 Kaimin Wang , Haoran Liu , Peng Li , Mingzhe Liu , Zhuo Zuo

This study utilized the Tempotron, a robust classifier based on a third-generation neural network model, for pulse shape discrimination. By eliminating the need for manual feature extraction, the Tempotron model can process pulse signals…

Signal Processing · Electrical Eng. & Systems 2026-01-01 Haoran Liu , Peng Li , Ming-Zhe Liu , Kai-Ming Wang , Zhuo Zuo , Bing-Qi Liu

A pulse shape analysis framework is described, which was developed for n_TOF-Phase3, the third phase in the operation of the n_TOF facility at CERN. The most notable feature of this new framework is the adoption of generic pulse shape…

Traditionally, neutron-$\gamma$ discrimination in organic scintillators relies on techniques such as time-of-flight (ToF) selection and pulse-shape discrimination (PSD). However, particle identification through graphical cuts remains…

Pulse shape discrimination with pure CsI scintillators is investigated as a method for separating energy deposits by energetic neutrons and photons at particle physics experiments. Using neutron data collected near the European XFEL XS1…

Instrumentation and Detectors · Physics 2022-07-11 S. Longo , M. Khan , S. Dharani , B. von Krosigk , T. Ferber

Detection of cell nuclei in microscopic images is a challenging research topic, because of limitations in cellular image quality and diversity of nuclear morphology, i.e. varying nuclei shapes, sizes, and overlaps between multiple cell…

Computer Vision and Pattern Recognition · Computer Science 2018-07-10 Mohammad Tofighi , Tiantong Guo , Jairam K. P. Vanamala , Vishal Monga
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