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Near-edge x-ray absorption fine structure investigation of graphene

We report the near-edge x-ray absorption fine structure (NEXAFS) spectrum of a single layer of graphite (graphene) obtained by micromechanical cleavage of Highly Ordered Pyrolytic Graphite (HOPG) on a SiO2 substrate. We utilized a…

Materials Science · Physics 2009-11-13 D. Pacilé , M. Papagno , A. Fraile Rodríguez , M. Grioni , L. Papagno , Ç. Ö. Girit , J. C. Meyer , G. E. Begtrup , A. Zettl

Single-pixel coherent diffraction imaging

Complex-field imaging is indispensable for numerous applications at wavelengths from X-ray to THz, with amplitude describing transmittance (or reflectivity) and phase revealing intrinsic structure of the target object. Coherent diffraction…

Image and Video Processing · Electrical Eng. & Systems 2021-04-07 Meng Li , Liheng Bian , Guoan Zheng , Andrew Maiden , Yang Liu , Yiming Li , Qionghai Dai , Jun Zhang

Measurement of Very-high-energy Diffuse Gamma-ray Emissions from the Galactic Plane with LHAASO-WCDA

The diffuse Galactic gamma-ray emission is a very important tool used to study the propagation and interaction of cosmic rays in the Milky Way. In this work, we report the measurements of the diffuse emission from the Galactic plane,…

High Energy Astrophysical Phenomena · Physics 2026-01-08 The LHAASO Collaboration , Zhen Cao , F. Aharonian , Y. X. Bai , Y. W. Bao , D. Bastieri , X. J. Bi , Y. J. Bi , W. Bian , A. V. Bukevich , C. M. Cai , W. Y. Cao , Zhe Cao , J. Chang , J. F. Chang , A. M. Chen , E. S. Chen , H. X. Chen , Liang Chen , Long Chen , M. J. Chen , M. L. Chen , Q. H. Chen , S. Chen , S. H. Chen , S. Z. Chen , T. L. Chen , X. B. Chen , X. J. Chen , Y. Chen , N. Cheng , Y. D. Cheng , M. C. Chu , M. Y. Cui , S. W. Cui , X. H. Cui , Y. D. Cui , B. Z. Dai , H. L. Dai , Z. G. Dai , Danzengluobu , Y. X. Diao , X. Q. Dong , K. K. Duan , J. H. Fan , Y. Z. Fan , J. Fang , J. H. Fang , K. Fang , C. F. Feng , H. Feng , L. Feng , S. H. Feng , X. T. Feng , Y. Feng , Y. L. Feng , S. Gabici , B. Gao , C. D. Gao , Q. Gao , W. Gao , W. K. Gao , M. M. Ge , T. T. Ge , L. S. Geng , G. Giacinti , G. H. Gong , Q. B. Gou , M. H. Gu , F. L. Guo , J. Guo , X. L. Guo , Y. Q. Guo , Y. Y. Guo , Y. A. Han , O. A. Hannuksela , M. Hasan , H. H. He , H. N. He , J. Y. He , X. Y. He , Y. He , S. Hernández-Cadena , Y. K. Hor , B. W. Hou , C. Hou , X. Hou , H. B. Hu , S. C. Hu , C. Huang , D. H. Huang , J. J. Huang , T. Q. Huang , W. J. Huang , X. T. Huang , X. Y. Huang , Y. Huang , Y. Y. Huang , X. L. Ji , H. Y. Jia , K. Jia , H. B. Jiang , K. Jiang , X. W. Jiang , Z. J. Jiang , M. Jin , S. Kaci , M. M. Kang , I. Karpikov , D. Khangulyan , D. Kuleshov , K. Kurinov , B. B. Li , Cheng Li , Cong Li , D. Li , F. Li , H. B. Li , H. C. Li , Jian Li , Jie Li , K. Li , L. Li , R. L. Li , S. D. Li , T. Y. Li , W. L. Li , X. R. Li , Xin Li , Y. Z. Li , Zhe Li , Zhuo Li , E. W. Liang , Y. F. Liang , S. J. Lin , B. Liu , C. Liu , D. Liu , D. B. Liu , H. Liu , H. D. Liu , J. Liu , J. L. Liu , J. R. Liu , M. Y. Liu , R. Y. Liu , S. M. Liu , W. Liu , X. Liu , Y. Liu , Y. Liu , Y. N. Liu , Y. Q. Lou , Q. Luo , Y. Luo , H. K. Lv , B. Q. Ma , L. L. Ma , X. H. Ma , J. R. Mao , Z. Min , W. Mitthumsiri , G. B. Mou , H. J. Mu , Y. C. Nan , A. Neronov , K. C. Y. Ng , M. Y. Ni , L. Nie , L. J. Ou , P. Pattarakijwanich , Z. Y. Pei , J. C. Qi , M. Y. Qi , J. J. Qin , A. Raza , C. Y. Ren , D. Ruffolo , A. Sáiz , M. Saeed , D. Semikoz , L. Shao , O. Shchegolev , Y. Z. Shen , X. D. Sheng , Z. D. Shi , F. W. Shu , H. C. Song , Yu. V. Stenkin , V. Stepanov , Y. Su , D. X. Sun , H. Sun , Q. N. Sun , X. N. Sun , Z. B. Sun , N. H. Tabasam , J. Takata , P. H. T. Tam , H. B. Tan , Q. W. Tang , R. Tang , Z. B. Tang , W. W. Tian , C. N. Tong , L. H. Wan , C. Wang , G. W. Wang , H. G. Wang , H. H. Wang , J. C. Wang , K. Wang , Kai Wang , Kai Wang , L. P. Wang , L. Y. Wang , L. Y. Wang , R. Wang , W. Wang , X. G. Wang , X. J. Wang , X. Y. Wang , Y. Wang , Y. D. Wang , Z. H. Wang , Z. X. Wang , Zheng Wang , D. M. Wei , J. J. Wei , Y. J. Wei , T. Wen , S. S. Weng , C. Y. Wu , H. R. Wu , Q. W. Wu , S. Wu , X. F. Wu , Y. S. Wu , S. Q. Xi , J. Xia , J. J. Xia , G. M. Xiang , D. X. Xiao , G. Xiao , Y. L. Xin , Y. Xing , D. R. Xiong , Z. Xiong , D. L. Xu , R. F. Xu , R. X. Xu , W. L. Xu , L. Xue , D. H. Yan , J. Z. Yan , T. Yan , C. W. Yang , C. Y. Yang , F. F. Yang , L. L. Yang , M. J. Yang , R. Z. Yang , W. X. Yang , Y. H. Yao , Z. G. Yao , X. A. Ye , L. Q. Yin , N. Yin , X. H. You , Z. Y. You , Y. H. Yu , Q. Yuan , H. Yue , H. D. Zeng , T. X. Zeng , W. Zeng , M. Zha , B. B. Zhang , B. T. Zhang , F. Zhang , H. Zhang , H. M. Zhang , H. Y. Zhang , J. L. Zhang , Li Zhang , P. F. Zhang , P. P. Zhang , R. Zhang , S. R. Zhang , S. S. Zhang , W. Y. Zhang , X. Zhang , X. P. Zhang , Yi Zhang , Yong Zhang , Z. P. Zhang , J. Zhao , L. Zhao , L. Z. Zhao , S. P. Zhao , X. H. Zhao , Z. H. Zhao , F. Zheng , W. J. Zhong , B. Zhou , H. Zhou , J. N. Zhou , M. Zhou , P. Zhou , R. Zhou , X. X. Zhou , X. X. Zhou , B. Y. Zhu , C. G. Zhu , F. R. Zhu , H. Zhu , K. J. Zhu , Y. C. Zou , X. Zuo

The simultaneous measurement of energy and linear polarization of the scattered radiation in resonant inelastic soft x-ray scattering

Resonant Inelastic X-ray Scattering (RIXS) in the soft x-ray range is an element-specific energy-loss spectroscopy used to probe the electronic and magnetic excitations in strongly correlated solids. In the recent years, RIXS has been…

Instrumentation and Detectors · Physics 2014-11-17 L. Braicovich , M. Minola , G. Dellea , M. Le Tacon , M. Moretti Sala , C. Morawe , J-Ch. Peffen , R. Supruangnet , F. Yakhou , G. Ghiringhelli , N. B. Brookes

Optical readout: a tool for studying gas-avalanche processes

Optical recording of avalanche-induced photons is an interesting tool for studying basic physics processes in gaseous detectors. In this work we demonstrate the potential of optical readout in avalanche-propagation investigations in Thick…

Instrumentation and Detectors · Physics 2014-01-07 A. Rubin , L. Arazi , S. Bressler , A. Dery , L. Moleri , M. Pitt , D. Vartsky , A. Breskin

Detection of Alpha Particles and Low Energy Gamma Rays by Thermo-Bonded Micromegas in Xenon Gas

Micromegas is a type of micro-pattern gaseous detector currently under R&D for applications in rare event search experiments. Here we report the performance of a Micromegas structure constructed with a micromesh thermo-bonded to a readout…

Instrumentation and Detectors · Physics 2014-05-13 Yuehuan Wei , Liang Guan , Zhiyong Zhang , Qing Lin , Xiaolian Wang , Kaixuan Ni , Tianchi Zhao

The Large Underground Xenon (LUX) Experiment

The Large Underground Xenon (LUX) collaboration has designed and constructed a dual-phase xenon detector, in order to conduct a search for Weakly Interacting Massive Particles(WIMPs), a leading dark matter candidate. The goal of the LUX…

Instrumentation and Detectors · Physics 2013-01-15 D. S. Akerib , X. Bai , S. Bedikian , E. Bernard , A. Bernstein , A. Bolozdynya , A. Bradley , D. Byram , S. B. Cahn , C. Camp , M. C. Carmona-Benitez , D. Carr , J. J. Chapman , A. Chiller , C. Chiller , K. Clark , T. Classen , T. Coffey , A. Curioni , E. Dahl , S. Dazeley , L. de Viveiros , A. Dobi , E. Dragowsky , E. Druszkiewicz , B. Edwards , C. H. Faham , S. Fiorucci , R. J. Gaitskell , K. R. Gibson , M. Gilchriese , C. Hall , M. Hanhardt , B. Holbrook , M. Ihm , R. G. Jacobsen , L. Kastens , K. Kazkaz , R. Knoche , S. Kyre , J. Kwong , R. Lander , N. A. Larsen , C. Lee , D. S. Leonard , K. T. Lesko , A. Lindote , M. I. Lopes , A. Lyashenko , D. C. Malling , R. Mannino , Z. Marquez , D. N. McKinsey , D. -M. Mei , J. Mock , M. Moongweluwan , M. Morii , H. Nelson , F. Neves , J. A. Nikkel , M. Pangilinan , P. D. Parker , E. K. Pease , K. Pech , P. Phelps , A. Rodionov , P. Roberts , A. Shei , T. Shutt , C. Silva , W. Skulski , V. N. Solovov , C. J. Sofka , P. Sorensen , J. Spaans , T. Stiegler , D. Stolp , R. Svoboda , M. Sweany , M. Szydagis , D. Taylor , J. Thomson , M. Tripathi , S. Uvarov , J. R. Verbus , N. Walsh , R. Webb , D. White , J. T. White , T. J. Whitis , M. Wlasenko , F. L. H. Wolfs , M. Woods , C. Zhang

X-ray diffraction from isolated and strongly aligned gas-phase molecules with a free-electron laser

We report experimental results on x-ray diffraction of quantum-state-selected and strongly aligned ensembles of the prototypical asymmetric rotor molecule 2,5-diiodobenzonitrile using the Linac Coherent Light Source. The experiments…

Atomic Physics · Physics 2014-03-11 Jochen Küpper , Stephan Stern , Lotte Holmegaard , Frank Filsinger , Arnaud Rouzée , Artem Rudenko , Per Johnsson , Andrew V. Martin , Marcus Adolph , Andrew Aquila , Saša Bajt , Anton Barty , Christoph Bostedt , John Bozek , Carl Caleman , Ryan Coffee , Nicola Coppola , Tjark Delmas , Sascha Epp , Benjamin Erk , Lutz Foucar , Tais Gorkhover , Lars Gumprecht , Andreas Hartmann , Robert Hartmann , Günter Hauser , Peter Holl , Andre Hömke , Nils Kimmel , Faton Krasniqi , Kai-Uwe Kühnel , Jochen Maurer , Marc Messerschmidt , Robert Mosshammer , Christian Reich , Benedikt Rudek , Robin Santra , Ilme Schlichting , Carlo Schmidt , Sebastian Schorb , Joachim Schulz , Heike Soltau , John C. H. Spence , Dmitri Starodub , Lothar Strüder , Jan Thøgersen , Marc J. J. Vrakking , Georg Weidenspointner , Thomas A. White , Cornelia Wunderer , Gerard Meijer , Joachim Ullrich , Henrik Stapelfeldt , Daniel Rolles , Henry N. Chapman

Wide Field Hard X-ray Survey Telescope: ProtoEXIST1

We report our progress on the development of pixellated imaging CZT detector arrays for our first-generation balloon-borne wide-field hard X-ray (20 - 600 keV) telescope, ProtoEXIST1. Our ProtoEXIST program is a pathfinder for the High…

Astrophysics · Physics 2009-11-13 J. Hong , J. E. Grindlay , N. Chammas , B. Allen , A. Copete , B. Said , M. Burke , J. Howell , T. Gauron , R. G. Baker , S. D. Barthelmy , S. Sheikh , N. Gehrels , W. R. Cook , J. A. Burnham , F. A. Harrison , J. Collins , S. Labov , A. Garson , H. Krawczynski

A Double Layered Water Cherenkov Detector Array for Gamma-Ray Astronomy

Ground-level particle detection is now a well-established approach to TeV gamma-ray astronomy. Detection of Cherenkov light produced in water-filled detection units is a proven and cost-effective method. Here we discuss the optimization of…

Instrumentation and Methods for Astrophysics · Physics 2023-03-22 Samridha Kunwar , Hazal Goksu , Jim Hinton , Harm Schoorlemmer , Andrew Smith , Werner Hofmann , Felix Werner

A Directional Gamma-Ray Detector Based on Scintillator Plates

A simple device for determining the azimuthal location of a source of gamma radiation, using ideas from astrophysical gamma-ray burst detection, is described. A compact and robust detector built from eight identical modules, each comprising…

Instrumentation and Detectors · Physics 2015-12-09 D. Hanna , L. Sagnières , P. Boyle , A. M. L. MacLeod

Development of innovative micropattern gaseous detectors with resistive electrodes and first results of their applications

The paper summarizes our latest progress in the development of newly introduced micro pattern gaseous detectors with resistive electrodes. These resistive electrodes protect the detector and the front-end electronics in case of occasional…

Instrumentation and Detectors · Physics 2008-11-26 A. Di Mauro , B. Lund-Jensen , P. Martinengo , E. Nappi , R. Oliveira , V. Peskov , L. Periale , P. Picchi , F. Pietropaolo , I. Rodionov , J. C. Santiard

Performance of a First Full-Size WOM-Based Liquid Scintillator Detector Cell as Prototype for the SHiP Surrounding Background Tagger

As a prototype detector for the SHiP Surrounding Background Tagger (SBT), we constructed a cell (120 cm x 80 cm x 25 cm) made from corten steel that is filled with liquid scintillator (LS) composed of linear alkylbenzene (LAB) and…

Instrumentation and Detectors · Physics 2024-02-28 J. Alt , O. Bezshyyko , M. Böhles , A. Brignoli , A. Conaboy , P. Deucher , C. Eckardt , A. Ernst , H. Fischer , A. Hollnagel , M. Jadidi , H. Lacker , F. Lyons , T. Molzberger , S. Ochoa , V. Orlov , A. Reghunath , F. Rehbein , M. Schaaf , C. Scharf , J. Schmidt , M. Schumann , A. Vagts , M. Wurm

Search for the light dark matter with an X-ray spectrometer

Sterile neutrinos with the mass in the keV range are interesting warm dark matter (WDM) candidates. The restrictions on their parameters (mass and mixing angle) obtained by current X-ray missions (XMM-Newton or Chandra) can only be improved…

Astrophysics · Physics 2008-11-26 Alexey Boyarsky , Jan Willem den Herder , Andrey Neronov , Oleg Ruchayskiy

Resonant Elastic Soft X-Ray Scattering

Resonant (elastic) soft x-ray scattering (RSXS) offers a unique element, site, and valence specific probe to study spatial modulations of charge, spin, and orbital degrees of freedom in solids on the nanoscopic length scale. It cannot only…

Materials Science · Physics 2013-04-12 J. Fink , E. Schierle , E. Weschke , J. Geck

Gas electron tracking detector for beta decay experiments

For identification and 3D-tracking of low-energy electrons a new type of gas-based detector was designed that minimizes scattering and energy loss. The current version of the detector is a combination of a plastic scintillator, serving as a…

Instrumentation and Detectors · Physics 2022-09-21 D. Rozpedzik , L. De Keukeleere , K. Bodek , L. Hayen , K. Lojek , M. Perkowski , N. Severijns

Diffraction gratings with two-orders-of-magnitude-enhanced dispersion rates for sub-meV-resolution soft x-ray spectroscopy

Diffraction gratings with large angular dispersion rates are central to obtaining high spectral resolution in grating spectrometers operating over a broad spectral range from infrared to soft-x-ray domains. The greatest challenge is of…

Optics · Physics 2021-05-18 Yuri Shvyd'ko

A Modern Laboratory XAFS Cookbook

We have recently demonstrated a very favorable, inexpensive modernization of lab-based x-ray absorption fine structure (XAFS) and high-resolution x-ray emission spectroscopy (XES) using only commercially-available optics and x-ray tube…

Instrumentation and Detectors · Physics 2016-06-22 Gerald T. Seidler , Devon R. Mortensen , Alexander S. Ditter , Neil A. Ball , Adam J. Remesnik

Gamma-Ray Astronomy around 100 TeV with a large Muon Detector operated at Very High Altitude

Measurements at 100 TeV and above are an important goal for the next generation of high energy gamma-ray astronomy experiments to solve the still open problem of the origin of galactic cosmic rays. The most natural experimental solution to…

Astrophysics · Physics 2007-10-11 G. Di Sciascio , T. Di Girolamo , E. Rossi , L. Saggese

Initial results from a laboratory emulation of weak gravitational lensing measurements

Weak gravitational lensing observations are a key science driver for the NASA Wide Field Infrared Survey Telescope (WFIRST). To validate the performance of the WFIRST infrared detectors, we have performed a laboratory emulation of weak…

Instrumentation and Methods for Astrophysics · Physics 2015-06-16 Suresh Seshadri , Charles Shapiro , Timothy Goodsall , Jason Fucik , Christopher M. Hirata , Jason Rhodes , Barnaby Rowe , Roger Smith