中文
相关论文

相关论文: A practical approach of measuring $^{238}$U and $^…

200 篇论文

The Jiangmen Underground Neutrino Observatory (JUNO), a 20~kton multi-purpose low background Liquid Scintillator (LS) detector, was proposed primarily to determine the neutrino mass ordering. To suppress the radioactivity from the…

仪器与探测器 · 物理学 2024-02-22 C. Li , B. Wang , Y. Liu , C. Guo , Y. P. Zhang , J. C. Liu , Q. Tang , T. Y. Guan , C. G. Yang

Materials selection for rare event physics requires high performance detectors and customized analyses. In this context a novel $\beta$-$\gamma$ detection system, comprised of a liquid scintillator in coincidence with a HPGe, was developed…

核实验 · 物理学 2022-04-13 A. Barresi , D. Chiesa , M. Nastasi , E. Previtali , M. Sisti

The ICARUS Detector at the LGNS will carry out a sensitive search for a sin sup 2(2 theta sub 13). We describe a small version for the LANNDD proton decay detector (70kT Liquid Argon) to measure nu sub mu -> nu sub e in a low energy or…

天体物理学 · 物理学 2008-11-26 David B. Cline , Stanislaw Otwinowski , Franco Sergiampietri

We report on the design and performance of the LUX-ZEPLIN (LZ) "Screener", a small liquid scintillator detector consisting of $\approx 23$ kg of LAB-based gadolinium-loaded liquid scintillator (GdLS) to be used in the LZ Outer Detector. The…

仪器与探测器 · 物理学 2019-05-29 S. J. Haselschwardt , S. Shaw , H. N. Nelson , M. S. Witherell , M. Yeh , K. T. Lesko , A. Cole , S. Kyre , D. T. White

Radioactive $^{233}$U alpha recoil sources are being considered for the production of a thorium ion source to study the low-energy isomer in $^{229}$Th with high-resolution collinear laser spectroscopy at the IGISOL facility of the…

核实验 · 物理学 2020-01-29 I. Pohjalainen , I. D. Moore , T. Sajavaara

A new indium-loaded liquid scintillator (LS) with up to 15wt% In and high light output promises a breakthrough in the 25y old proposal for observing pp solar neutrinos (nue) by tagged nue capture in 115In. Intense background from the…

高能物理 - 实验 · 物理学 2007-05-23 R. S. Raghavan

A monitoring system for fast neutrons is planned in the COSINE experiment, a dark matter experiment with NaI crystals. We pursued several R&D approaches for a neutron detector using a liquid scintillator (LS). A pulse shape discrimination…

A simple and fast radiochemical procedure for the sequential extraction of U, Np and Pu from small-volume seawater samples ($<10$ L) is presented. The method has been developed and optimized for the final determination of $^{236}$U,…

应用物理 · 物理学 2025-01-17 Mercedes López-Lora , Isabelle Levy , Elena Chamizo

Monitoring $^{90}$Sr contamination in milk following a nuclear accident is critical due to its radiotoxicity and calcium-mimicking behaviour, leading to accumulation in bones and teeth. This study presents a high-efficiency protocol for…

Our study introduces innovative methods to address waste reduction and enhance resource efficiency in nuclear cleanup processes. We focus on sustainable nuclear technology, aligning with goals for cleaner production and environmental…

仪器与探测器 · 物理学 2025-02-19 Victor V. Golovko

Acrylic is widely used as material for the target container in low background experiments due to its high light transparency and low intrinsic radioactivity. However, its surface can be easily contaminated during production, so careful…

A test case, using a similar methodology and experimental set-up than previous test case TC5-Level 1 is presented in this paper. An inductively coupled plasma torch, working at atmospheric pressure, is used to create N2-CH4 Titan-like…

等离子体物理 · 物理学 2009-11-16 Damien Vacher , Pascal André , Mario Lino Da Silva , Michel Dudeck , Géraldine Faure

The World Health Organisation (WHO) presents an upper limit for lead in drinking water of 10 parts per billion ppb. Typically, to reach this level of sensitivity, expensive metrology is required. To increase the sensitivity of low cost…

Radon is a naturally occurring radioactive gas that contributes significantly to human radiation exposure and must be controlled to avoid concentrations harmful to health. The paper presents an impulse-proportional ionization chamber that…

仪器与探测器 · 物理学 2025-12-25 Ralf Nötzel , Kerstin Weinberg

Plastic scintillators are a versatile and inexpensive option for particle detection, which is why the largest particle physics experiments, CMS and ATLAS, use them extensively in their calorimeters. One of their challenging aspects,…

仪器与探测器 · 物理学 2023-12-11 C. Papageorgakis , M. Y. Aamir , A. Belloni , T. K. Edberg , S. C. Eno , B. Kronheim , C. Palmer

A particle detection system that exploits the scintillation light produced by ionizing particles in liquid argon (LAr) has been assembled at CERN. The system is based on 10 large-area photomultiplier tubes (PMT) immersed in a 1500-liter…

The detectors based on the liquid scintillator (LS) monitored by an array of photo-multiplier tubes (PMT) are often used in low energy experiments such as neutrino oscillation studies and search for dark matter. Detectors of this kind…

A technique based on neutron activation has been developed for an extremely high sensitivity analysis of trace elements in organic materials. Organic materials are sealed in plastic or high purity quartz and irradiated at the HFIR and MITR.…

高能物理 - 实验 · 物理学 2009-11-07 Z. Djurcic , D. Glasgow , L-W. Hu , R. D. McKeown , A. Piepke , R. Swinney , B. Tipton