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There is a key research issue to accurately select out neutron signals and discriminate gamma signals from a mixed radiation field in the neutron detection. This paper proposes a fractal spectrum discrimination approach by means of…

仪器与探测器 · 物理学 2016-08-03 Mingzhe Liu , Bingqi Liu , Zhuo Zuo , Lei Wang , Guibin Zan , Xianguo Tuo

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…

仪器与探测器 · 物理学 2022-01-26 Haoqi Ye , Ge Jin , Lian Chen

A novel algorithm for the discrimination of neutron and {\gamma}-ray with wavelet transform modulus maximum (WTMM) in an organic scintillation has been investigated. Voltage pulses arising from a BC501A organic liquid scintillation detector…

仪器与探测器 · 物理学 2013-04-18 Yang yun , Liu guofu , Yang jun , Luo xiaoliang

Possibilities of discriminating neutrons and gamma rays in the AGATA gamma-ray tracking spectrometer have been investigated with the aim of reducing the background due to inelastic scattering of neutrons in the high-purity germanium…

核实验 · 物理学 2009-09-09 A. Ataç , A. Kaşkaş , S. Akkoyun , M. Şenyiğit , T. Hüyük , S. O. Kara , J. Nyberg

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…

信号处理 · 电气工程与系统科学 2024-04-09 Kaimin Wang , Haoran Liu , Peng Li , Mingzhe Liu , Zhuo Zuo

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…

核实验 · 物理学 2008-12-08 P. -A. Söderström

Fast-neutron/gamma-ray pulse-shape discrimination has been performed for the organic liquid scintillators NE 213A and EJ 305 using a time-of-flight based neutron-tagging technique and waveform digitization on an event-by-event basis.…

Many modern digital analyzers offer the ability to record raw pulses from ionizing radiation detectors. We use this opportunity to investigate the effectiveness of Charge Comparison Method in Pulse Shape Discrimination of neutron and gamma…

A VME-based experiment system for n-{\gamma} discrimination using the charge comparison method was established. A data acquisition program for controlling the programmable modules and processing data online via VME64X bus was developed…

Neutron/gamma discrimination has been intensively researched in recent years, due to its unique scientific value and widespread applications. With the advancement of detection materials and algorithms, nowadays we can achieve fairly good…

仪器与探测器 · 物理学 2025-05-28 Pengcheng Ai , Hongtao Qin , Xiangming Sun , Kaiwen Shang

In rare events experiments, such as those devoted to the direct search of dark matter, a precise knowledge of the environmental gamma and neutron backgrounds is crucial for reaching the design experiment sensitivity. The neutron component…

仪器与探测器 · 物理学 2025-04-24 Lorenzo Ascenzo , Giovanni Benato , Yingjie Chu , Giuseppe Di Carlo , Andrea Molinario , Silvia Vernetto

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…

数据分析、统计与概率 · 物理学 2009-11-10 S. C. Wu

To improve photometric precision by removing blending effect, a newly developed technique of difference image analysis (DIA) is adopted by several gravitational microlensing experiment groups. However, the principal problem of the DIA…

天体物理学 · 物理学 2009-10-31 Cheongho Han

Pressurized Helium-4 (PHe) based fast neutron scintillation detector offers an useful alternative to organic liquid-based scintillator due to its relatively low response to the $\gamma$-rays compared to the latter type of scintillator. In…

仪器与探测器 · 物理学 2024-09-04 Shubham Dutta , Sayan Ghosh , Satyajit Saha

In this work, a new neutron and {\gamma}(n/{\gamma}) discrimination method based on an Elman Neural Network (ENN) is proposed to improve the discrimination performance of liquid scintillator (LS) detectors. Neutron and {\gamma} data were…

仪器与探测器 · 物理学 2016-08-24 Cai-Xun Zhang , Shin-Ted Lin , Jian-Ling Zhao , Li Wang , Xun-Zhen Yu , Jing-Jun Zhu , Hao-Yang Xing

Searches for gravitational-wave bursts (transient signals, typically of unknown waveform) require identification of weak signals in background detector noise. The sensitivity of such searches is often critically limited by non-Gaussian…

广义相对论与量子宇宙学 · 物理学 2013-10-02 Thomas S. Adams , Duncan Meacher , James Clark , Patrick J. Sutton , Gareth Jones , Ariana Minot

In this work we explore for the first time the applicability of using $\gamma$-ray imaging in neutron capture measurements to identify and suppress spatially localized background. For this aim, a pinhole gamma camera is assembled, tested…

The alpha decay of $\n{{}^{210}Po}$ is a dangerous background to rare event searches. Here, we describe observations related to this alpha decay in the Cryogenic Rare Event Search with Superconducting Thermometers (CRESST). We find that…

It is very important to measure the plasma performances of fusion reactors such as fuel ion density, plasma temperature, fusion power, fast neutron energy, and neutron flux. Various diagnostic systems are needed to measure fast neutron…

核实验 · 物理学 2024-07-10 Iskender Atilla Reyhancan

Scintillation produced in liquid xenon by alpha particles and gamma rays has been studied as a function of applied electric field. For back scattered gamma rays with energy of about 200 keV, the number of scintillation photons was found to…

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