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This paper proposes a symbolic-numeric Bayesian filtering method for a class of discrete-time nonlinear stochastic systems to achieve high accuracy with a relatively small online computational cost. The proposed method is based on the…

数值分析 · 数学 2022-03-23 Tomoyuki Iori , Toshiyuki Ohtsuka

The p-type semiconductor Cu3PSe4 has recently been established to have a direct bandgap of 1.4 eV and an optical absorption spectrum similar to GaAs [Applied Physics Letters, 99, 181903 (2011)], suggesting a possible application as a solar…

材料科学 · 物理学 2015-06-11 D. H. Foster , F. L. Barras , J. M. Vielma , G. Schneider

Spectroscopic measurements are presented using the PID350 pixelated gamma radiation detectors. A high-speed data acquisition system has been developed in order to reduce the data loss during the data reading in case of a high flux of…

仪器与探测器 · 物理学 2010-11-16 K. Karafasoulis , K. Zachariadou , S. Seferlis , I. Papadakis , D. Loukas , C. Lambropoulos , C. Potiriadis

Accurately predicting protein-ligand binding free energies (BFEs) remains a central challenge in drug discovery, particularly because the most reliable methods, such as free energy perturbation (FEP), are computationally intensive and…

化学物理 · 物理学 2025-12-09 Farzad Molani , Art E. Cho

The SEparator for CApture Reactions (SECAR) is a next-generation recoil separator system at the Facility for Rare Isotope Beams (FRIB) designed for the direct measurement of capture reactions on unstable nuclei in inverse kinematics. To…

This work addresses the critical challenge of optimal filter selection for a novel trace gas measurement device. This device uses photonic crystal filters to retrieve trace gas concentrations affected by photon and read noise. The filter…

神经与进化计算 · 计算机科学 2025-11-10 Kirill Antonov , Marijn Siemons , Niki van Stein , Thomas H. W. Bäck , Ralf Kohlhaas , Anna V. Kononova

Identifying the constituting materials of concealed objects is crucial in a wide range of sectors, such as medical imaging, geophysics, nonproliferation, national security investigations, and so on. Existing methods face limitations,…

应用物理 · 物理学 2025-10-06 Oleg Korobkin , Marc L. Klasky , Ajeeta Khatiwada , Michael McCann

Burnup measurement is essential for monitoring and controlling pebble bed reactors (PBRs), where fuel pebbles circulate rapidly through the core. However, conventional gamma spectroscopy using high purity germanium (HPGe) detectors is…

仪器与探测器 · 物理学 2025-11-13 Ian Kolaja , Lee Bernstein , Ludovic Jantzen , Eleanor Tubman , Tatiana Siaraferas , Massimiliano Fratoni

We report on the systematic study of a single-gas-electron-multiplication (GEM) loaded gaseous detector developed for precision measurements of high-energy particle beams and dose-verification measurements. In the present study, a…

仪器与探测器 · 物理学 2014-07-29 Kyong Sei Lee , Byungsik Hong , Sang Yeol Kim , Sung Keun Park

In spite of having higher carrier mobilities and absorption coefficients of germanium (Ge) than those of silicon (Si), there has been less focus on Ge-based solar cells due to the low bandgap and high-cost of Ge wafer as well as requirement…

In recent years Gas Electron Multipliers have proven to be reliable amplification stages at high beam rates, and can be used also in Time Projection Chambers. Our group developed a 1 dm$^3$ active volume double-GEM TPC, with spatial…

仪器与探测器 · 物理学 2020-09-07 Gábor Galgóczi , Gergő Hamar , Péter Pázmándi , Dezső Varga

The p-type point-contact germanium (pPCGe) detectors have been widely adopted in searches for low energy physics events such as neutrinos and dark matter. This is due to their enhanced capabilities of background rejection, sensitivity at…

仪器与探测器 · 物理学 2025-03-30 Jia-Shian Wang , Manoj Kumar Singh , Hau-Bin Li , Henry Tsz-King Wong

Bayesian inference with stochastic sampling has been widely used to obtain the properties of gravitational wave (GW) sources. Although computationally intensive, its cost remains manageable for current second-generation GW detectors because…

广义相对论与量子宇宙学 · 物理学 2025-10-02 Qian Hu , John Veitch

We explore the possibility to use advanced germanium (Ge) detectors as a low-energy solar neutrino observatory by means of neutrino-nucleus elastic scattering. A Ge detector utilizing internal charge amplification for the charge carriers…

仪器与探测器 · 物理学 2021-09-03 S. Bhattarai , D. -M. Mei , M. -S. Raut

Searches for new physics push experiments to look for increasingly rare interactions. As a result, detectors require increasing sensitivity and specificity, and materials must be screened for naturally occurring, background-producing…

仪器与探测器 · 物理学 2021-02-03 D. S. Leonard , I. S. Hahn , W. G. Kang , V. Kazalov , G. W. Kim , Y. D. Kim , E. K. Lee , M. H. Lee , S. Y. Park , E. Sala

We employ classical statistical methods of multivariate classification for the exploitation of the stellar content of the Hamburg/ESO objective prism survey (HES). In a simulation study we investigate the precision of a three-dimensional…

天体物理学 · 物理学 2009-11-07 Norbert Christlieb , Lutz Wisotzki , Gerd Grasshoff

A standard high purity germanium (HPGe) detector was used to determine the previously unknown neutron activity of a weak americium-beryllium (AmBe) neutron source. Gamma rays were created through 27Al(n,n'), 27Al(n,gamma) and 1H(n,gamma)…

仪器与探测器 · 物理学 2016-08-01 M. J. M. Duke , A. L. Hallin , C. B. Krauss , P. Mekarski , L. Sibley

Physico-chemical continuum battery models are typically parameterized by manual fits, relying on the individual expertise of researchers. In this article, we introduce a computer algorithm that directly utilizes the experience of battery…

数据分析、统计与概率 · 物理学 2023-02-08 Yannick Kuhn , Hannes Wolf , Arnulf Latz , Birger Horstmann

High-purity germanium detectors are well suited to analysis the radioactivity of samples. In order to reduce the environmental background, low-activity lead and oxygen free copper are installed outside of the probe to shield gammas, outmost…

The first operational prototype of a high-purity Germanium (HPGe) detector developed within the European LEAPS-INNOV project is presented in this work. This prototype features a monolithic, multi-element sensor optimized for high-resolution…