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This paper discusses hadron energy reconstruction for the ATLAS barrel prototype combined calorimeter (consisting of a lead-liquid argon electromagnetic part and an iron-scintillator hadronic part) in the framework of the non-parametrical…

High Energy Physics - Experiment · Physics 2012-08-27 ATLAS Collaboration

The design, construction and performance characteristics of a simple axial-field ionization chamber suitable for identifying ions in a radioactive beam are presented. Optimized for use with low-energy radioactive beams (< 5 MeV/A) the…

Instrumentation and Detectors · Physics 2016-10-12 J. Vadas , Varinderjit Singh , G. Visser , A. Alexander , S. Hudan , J. Huston , B. B. Wiggins , A. Chbihi , M. Famiano , M. M. Bischak , R. T. deSouza

We present a preliminary analysis of the photon beam asymmetry observable (Sigma) from the photoproduction reaction channel gamma+ n -> p + pi-. This new data was obtained using the near-4pi CEBAF Large Acceptance Spectrometer (CLAS) at…

Nuclear Experiment · Physics 2019-08-13 D. Sokhan , D. Watts , D. Branford , F. Klein

A large Time Projection Chamber is the main device for tracking and charged-particle identification in the ALICE experiment at the CERN LHC. After the second long shutdown in 2019/20, the LHC will deliver Pb beams colliding at an…

Instrumentation and Detectors · Physics 2018-07-16 M. M. Aggarwal , Z. Ahammed , S. Aiola , J. Alme , T. Alt , W. Amend , A. Andronic , V. Anguelov , H. Appelshäuser , M. Arslandok , R. Averbeck , M. Ball , G. G. Barnaföldi , E. Bartsch , R. Bellwied , G. Bencedi , M. Berger , N. Bialas , P. Bialas , L. Bianchi , S. Biswas , L. Boldizsár , L. Bratrud , P. Braun-Munzinger , M. Bregant , C. L. Britton , E. J. Brucken , H. Caines , A. J. Castro , S. Chattopadhyay , P. Christiansen , L. G. Clonts , T. M. Cormier , S. Das , S. Dash , A. Deisting , S. Dittrich , A. K. Dubey , R. Ehlers , M. Engel , F. Erhardt , N. B. Ezell , L. Fabbietti , U. Frankenfeld , J. J. Gaardhøje , C. Garabatos , P. Gasik , Á. Gera , P. Ghosh , S. K. Ghosh , P. Glässel , O. Grachov , A. Grein , T. Gunji , H. Hamagaki , G. Hamar , J. W. Harris , P. Hauer , J. Hehner , E. Hellbär , H. Helstrup , T. E. Hilden , B. Hohlweger , M. Ivanov , M. Jung , D. Just , E. Kangasaho , R. Keidel , B. Ketzer , S. A. Khan , S. Kirsch , T. Klemenz , S. Klewin , A. G. Knospe , M. Kowalski , L. Kumar , R. Lang , R. Langoy , L. Lautner , F. Liebske , J. Lien , C. Lippmann , H. M. Ljunggren , W. J. Llope , S. Mahmood , T. Mahmoud , R. Majka , P. Malzacher , A. Marín , C. Markert , S. Masciocchi , A. Mathis , A. Matyja , M. Meres , D. L. Mihaylov , D. Miskowiec , J. Mitra , T. Mittelstaedt , T. Morhardt , J. Mulligan , R. H. Munzer , K. Münning , M. G. Munhoz , S. Muhuri , H. Murakami , B. K. Nandi , H. Natal da Luz , C. Nattrass , T. K. Nayak , R. A. Negrao De Oliveira , M. Nicassio , B. S. Nielsen , L. Oláh , A. Oskarsson , J. Otwinowski , K. Oyama , G. Paić , R. N. Patra , V. Peskov , M. Pikna , L. Pinsky , M. Planinic , M. G. Poghosyan , N. Poljak , F. Pompei , S. K. Prasad , C. A. Pruneau , J. Putschke , S. Raha , J. Rak , J. Rasson , V. Ratza , K. F. Read , A. Rehman , R. Renfordt , T. Richert , K. Røed , D. Röhrich , T. Rudzki , R. Sahoo , S. Sahoo , P. K. Sahu , J. Saini , B. Schaefer , J. Schambach , S. Scheid , C. Schmidt , H. R. Schmidt , N. V Schmidt , H. Schulte , K. Schweda , I. Selyuzhenkov , N. Sharma , D. Silvermyr , R. N. Singaraju , B. Sitar , N. Smirnov , S. P. Sorensen , F. Sozzi , J. Stachel , E. Stenlund , P. Strmen , I. Szarka , G. Tambave , K. Terasaki , A. Timmins , K. Ullaland , A. Utrobicic , D. Varga , R. Varma , A. Velure , V. Vislavicius , S. Voloshin , B. Voss , D. Vranic , J. Wiechula , S. Winkler , J. Wikne , B. Windelband , C. Zhao

We have studied the performance of a new algorithm for electron/pion separation in an Emulsion Cloud Chamber (ECC) made of lead and nuclear emulsion films. The software for separation consists of two parts: a shower reconstruction algorithm…

Atomically resolved electron energy-loss spectroscopy experiments are commonplace in modern aberrationcorrected transmission electron microscopes. Energy resolution has also been increasing steadily with the continuous improvement of…

Materials Science · Physics 2014-03-10 R. Egoavil , N. Gauquelin , G. T. Martinez , S. Van Aert , G. Van Tendeloo , J. Verbeeck

We demonstrate that individual electron-hole pairs are resolved in a 1 cm$^2$ by 4 mm thick silicon crystal (0.93 g) operated at $\sim$35 mK. One side of the detector is patterned with two quasiparticle-trap-assisted…

The Transition Radiation Detector (TRD) provides particle identification in the ALICE central barrel. In particular, it allows electron identification via the measurement of transition radiation for $\rm p >$ 1 GeV/$c$, where pions can no…

Instrumentation and Detectors · Physics 2019-08-21 Yvonne Pachmayer

The study of the response of the two modules of the large-angle electromagnetic shower calorimeter (LAC) of the CLAS detector to charged and neutral particles is reported. The results agree very well with the Monte Carlo simulation. The…

We report on a recently developed novel type of large area (62 mm x 62 mm) position sensitive silicon detector with four-corner readout. It consists of a square-shaped ion-implanted resistive anode framed by additional low-resistivity…

Nuclear Experiment · Physics 2008-11-26 A. Banu , Y. Li , M. McCleskey , M. Bullough , S. Walsh , C. A. Gagliardi , L. Trache , R. E. Tribble , C. Wilburn

In the early 2030s, ESAs new X-ray observatory, Athena, is scheduled to be launched. It will carry two main instruments, one of which is the X-ray Integral Field Unit (X-IFU), an X-ray imaging spectrometer, which will consist of an array of…

The International Linear Collider (ILC) will collide polarised electrons and positrons at beam energies of 45.6 GeV to 250 GeV and optionally up to 500 GeV. To fully exploit the physics potential of this machine, not only the luminosity and…

Instrumentation and Detectors · Physics 2008-10-13 C. Helebrant , D. Käfer , J. List

The use of Thin-foil proton recoil (TPR) spectrometers to measure neutrons from Deuterium-Tritium (DT) fusion plasma has been studied previously and is a well established technique for neutron spectrometry. The study presented here focuses…

Recent spectroscopic models of active galactic nuclei (AGN) have indicated that the recommended electron-ion recombination rate coefficients for iron ions with partially filled M-shells are incorrect in the temperature range where these…

Although not designed primarily as a polarimeter, the \textit{Fermi}-Large Area Telescope (LAT) has the potential to detect high degrees of linear polarization from some of the brightest gamma-ray sources. To achieve the needed accuracy in…

Instrumentation and Methods for Astrophysics · Physics 2019-08-14 Matteo Giomi , Rolf Bühler , Carmelo Sgrò , Francesco Longo , William Atwood

We have developed two radiation-hard ASICs for optical data transmission in the ATLAS pixel detector at the LHC at CERN: a driver chip for a Vertical Cavity Surface Emitting Laser (VCSEL) diode for 80 Mbit/s data transmission from the…

Ultracold neutral plasmas, formed by photoionizing laser-cooled atoms near the ionization threshold, have electron temperatures in the 1-1000 kelvin range and ion temperatures from tens of millikelvin to a few kelvin. They represent a new…

Atomic Physics · Physics 2009-11-13 T. C. Killian , T. Pattard , T. Pohl , J. M. Rost

The ATLAS Forward Physics (AFP) project plans to install 3D silicon pixel detectors about 210 m away from the interaction point and very close to the beamline (2-3 mm). This implies the need of slim edges of about 100-200 $\mu$m width for…

Instrumentation and Detectors · Physics 2015-11-09 Jörn Lange , Emanuele Cavallaro , Sebastian Grinstein , Ivan Lopez Paz

Using the Cryogenic, High-Accuracy Refraction Measuring System (CHARMS) at NASA's Goddard Space Flight Center, we have measured the absolute refractive index of five specimens taken from a very large boule of Corning 7980 fused silica from…

Optics · Physics 2008-05-02 Douglas B. Leviton , Bradley J. Frey

A synchrotron radiation beamline in the photon energy range of 18 - 240 eV and an electron spectroscopy end station have been constructed at the 3 GeV Diamond Light Source storage ring. The instrument features a variable polarisation…

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