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Modern scientific instruments operate under increasingly extreme constraints on bandwidth, latency, and power. Inference at the sensor edge determines experimental data collection efficiency by deciding which information to save for further…

The response of the liquid scintillator (EJ-301 equivalent to NE-213) to the monoenergetic electrons produced in Compton scattered $\gamma$-ray tagging has been carried out for various radioactive $\gamma$-ray sources. The measured electron…

Regular object detection methods output rectangle bounding boxes, which are unable to accurately describe the actual object shapes. Instance segmentation methods output pixel-level labels, which are computationally expensive for real-time…

计算机视觉与模式识别 · 计算机科学 2023-04-06 Yang Zheng , Oles Andrienko , Yonglei Zhao , Minwoo Park , Trung Pham

3D Compton scattering imaging is an upcoming concept exploiting the scattering of photons induced by the electronic structure of the object under study. The so-called Compton scattering rules the collision of particles with electrons and…

数值分析 · 数学 2020-07-02 Gael Rigaud

CeBr3 is emerging as one of the best scintillators having properties almost similar to Cerium doped lanthanum halide scintillators. We have measured, for the first time, the intrinsic energy resolution of Compton electrons in a cylindrical…

仪器与探测器 · 物理学 2017-08-18 Snigdha Sharma , V. Ranga , S. Rawat , M. Dhibar , G. Anil Kumar

The differential probability of the process of Compton ionization of a hydrogen atom by a cylindrical electromagnetic wave is calculated taking into account the finite size of the target, which resulted in the appearance of a dependence of…

原子物理 · 物理学 2025-03-04 Igor Volobuev , Vadim Egorov

This paper proposes an accurate algorithm to implement calibration-free wavelength modulation spectroscopy based on even-order harmonics. The proposed algorithm, analytically deduced from a much more accurate Voigt function model, enabling…

仪器与探测器 · 物理学 2021-11-25 Yihong Wang , Bin Zhou , Bubin Wang , Rong Zhao

We present an imaging technique particularly suited to the detection of a target embedded in a strongly scattering medium. Classical imaging techniques based on the Born approximation fail in this kind of configuration because of multiply…

经典物理 · 物理学 2009-08-21 Alexandre Aubry , Arnaud Derode

A new method to compute the incoherent scattering function of harmonic lattices is introduced. It is based in a saddle point approximation for each term of the phonon expansion, and is simple enough to be used in practice. The method gives…

其他凝聚态物理 · 物理学 2018-07-20 Victor Laliena , Javier Campo

Scattering by an isolated defect embedded in a dielectric medium of two dimensional periodicity is of interest in many sub-fields of electrodynamics. Present approaches to compute this scattering rely either on the Born approximation and…

介观与纳米尺度物理 · 物理学 2021-05-10 Kuljit S. Virk

Emitter localization is widely applied in the military and civilian _elds. In this paper, we tackle the problem of position estimation for multiple stationary emitters using Doppler frequency shifts and angles by moving receivers. The…

信号处理 · 电气工程与系统科学 2021-12-07 Ziqiang Wang , Yimao Sun , Qun Wan , Lei Xie , Ning Liu

To reduce the adverse impacts of the unknown colored noise on the performance degradation of the direction-of-arrival (DOA) estimation, we propose a new gridless DOA estimation method based on fourth-order cumulant (FOC)in this letter. We…

信号处理 · 电气工程与系统科学 2021-12-30 Jiawen Yuan

Recent advances in machine learning and hardware have produced embedded devices capable of performing real-time object detection with commendable accuracy. We consider a scenario in which embedded devices rely on an onboard object detector,…

分布式、并行与集群计算 · 计算机科学 2024-10-25 Jiaming Qiu , Ruiqi Wang , Brooks Hu , Roch Guerin , Chenyang Lu

Compton scattering between electrons and photons plays a crucial role in astrophysical plasmas. Many important aspects of this process can be captured by using the so-called Compton scattering kernel. For isotropic media, exact analytic…

宇宙学与河外天体物理 · 物理学 2019-10-03 Abir Sarkar , Jens Chluba , Elizabeth Lee

A digital pulse shape discrimination system based on a programmable module NI-5772 has been established and tested with EJ-301 liquid scintillation detector. The module was operated by means of running programs developed in LabVIEW with the…

仪器与探测器 · 物理学 2015-12-09 Bo Wan , Xueying Zhang , Liang Chen , Honglin Ge , Fei Ma , Hongbin Zhang , Yongqin Ju , Yanbin Zhang , Yanyan Li , Xiaowei Xu

The relation between the scattering cross section and the scattering angle under different energy condition of the incident rays is analyzed. From Compton scattering total cross section, a formula of quasi-parallel incident gamma ray…

仪器与探测器 · 物理学 2008-03-17 Mamat. Mamatrishat , Aierken. Abuliemu , Ding Jie , Wang Shiheng

In this paper, direct sampling method is considered for determining the location of a set of small, linear perfectly conducting cracks from the collected far-field data corresponding to an incident field. To show the feasibility of the…

数值分析 · 数学 2018-09-18 Won-Kwang Park

This article describes the design features and the first test measurements obtained during the installation of a novel high resolution 2D neutron detection technique. The technique proposed in this work consists of a boron layer (enriched…

Liquid scintillator detectors are playing an increasingly important role in low-energy neutrino experiments. In this article, we describe a generic energy response model of liquid scintillator detectors that provides energy estimations of…

仪器与探测器 · 物理学 2019-02-18 Logan Lebanowski , Linyan Wan , Xiangpan Ji , Zhe Wang , Shaomin Chen

The discriminant-analysis method has been applied to optimize the exotic-beam charge recognition in a projectile fragmentation experiment. The experiment was carried out at the GSI using the fragment separator (FRS) to produce and select…

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