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We have developed and tested several prototypes of GEM-like detectors with electrodes coated with resistive layers: CuO or CrO. These detectors can operate stably at gains close to 10E5 and they are very robust. We discovered that the…

Instrumentation and Detectors · Physics 2016-11-17 A. Di Mauro , B. Lund-Jensen , P. Martinengro , E. Napri , V. Peskov , L. Periale , P. Picchi , F. Pietropaolo , I. Rodionov

For the ITER-like wall, the JET mirror link divertor spectroscopy system was redesigned to fully cover the tungsten horizontal strike plate with faster time resolution and improved near-UV performance. Since the ITER-like wall project…

The Gamma-Ray and AntiMatter Survey (GRAMS) is a next-generation balloon/satellite mission utilizing a Liquid Argon Time Projection Chamber (LArTPC) detector to measure both MeV gamma rays and antinuclei produced by dark matter annihilation…

Purpose: The aim of this work was to create tissue-mimicking gel phantoms appropriate for diffusion kurtosis imaging (DKI) for quality assurance, protocol optimization and sequence development. Methods: A range of agar, agarose and…

We report the Herschel SPIRE detection of dust emission arising from UV-luminous (L>~L*) star-forming galaxies at 3.3<z<4.3. Our sample of 1,913 Lyman Break Galaxy (LBG) candidates is selected over an area of 5.3 deg2 in the Bootes Field of…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 Kyoung-Soo Lee , Stacey Alberts , David Atlee , Arjun Dey , Alexandra Pope , Buell T. Jannuzi , Naveen Reddy , Michael J. I. Brown

Wicking is a widely studied process in both natural and artificial systems. In many industrial applications, such as heat pipes, the wicking liquid evaporates to regulate temperature effectively. This study focuses on a simpler scenario…

Fluid Dynamics · Physics 2025-02-19 Rampally Srirama Chandra Murthy , Navneet Kumar

Porous polymer films of Poly(ethylene oxide)(PEO) are synthesized by solution casting technique using gamma irradiated: (a) PEO powder (S-series) and (b) PEO - methanol solution (L-series). Pore phase forms instantaneously during…

Applied Physics · Physics 2018-06-13 Subir K. Patla , Madhumita Mukhopadhyay , Abhra Giri , Ruma Ray , Sujata Tarafdar

Two-dimensional crystals with angstrom-scale pores are widely considered as candidates for a next generation of molecular separation technologies aiming to provide extreme, exponentially large selectivity combined with high flow rates. No…

An innovative photosensitive gaseous detector, consisting of a GEM like amplification structure with double layered electrodes (instead of commonly used metallic ones) coated with a CsI reflective photocathode, is described. In one of our…

Instrumentation and Detectors · Physics 2008-07-18 V. Peskov , P. Martinengo , E. Nappi , R. Oliveira , G. Paic , F. Pietropaolo , P. Picchi

Although supercontinuum sources are readily available for the visible and near infrared, and recently also for the mid-IR, many areas of biology, chemistry and physics would benefit greatly from the availability of compact, stable and…

This paper presents pre-launch testing and calibration results for the SVOM/VT (Space-based Variable Objects Monitor, Visible Telescope) Flight Model (FM), validating its performance under simulated space conditions through thermal vacuum…

Coronal Mass Ejections (CMEs) often show different features in different band-passes. By combining data in white-light (WL) and ultraviolet (UV) bands, we have applied different techniques to derive plasma temperatures, electron density,…

Solar and Stellar Astrophysics · Physics 2020-08-19 Beili Ying , Alessandro Bemporad , Li Feng , Lei Lu , Weiqun Gan , Hui Li

One of the main challenges in times of sanitary emergency is to quickly develop computer aided diagnosis systems with a limited number of available samples due to the novelty, complexity of the case and the urgency of its implementation.…

Image and Video Processing · Electrical Eng. & Systems 2021-03-09 Plácido L Vidal , Joaquim de Moura , Jorge Novo , Marcos Ortega

An imaging calorimeter has been designed and is being built for the PAMELA satellite-borne experiment. The physics goals of the experiment are the measurement of the flux of antiprotons, positrons and light isotopes in the cosmic radiation.…

Instrumentation and Detectors · Physics 2015-06-26 M. Boezio , V. Bonvicini , E. Mocchiutti , P. Schiavon , G. Scian , A. Vacchi , G. Zampa , N. Zampa

A gaseous beam monitor utilizing gas electron multiplier (GEM) and pixel sensors is being developed for the Cooling Storage Ring (CSR) External-target Experiment (CEE) at Heavy Ion Research Facility in Lanzhou (HIRFL). The beam monitor is…

This paper presents a new design of the RETGEM (Resistive Electrode Thick GEM) based on electrodes made of a polyvinylchloride material (PVC). Our device can operate with gains of 10E5 as a conventional TGEM at low counting rates and as RPC…

Instrumentation and Detectors · Physics 2009-11-26 V. I. Razin , B. M. Ovchinnikov , A. I. Reshetin , S. N. Filippov

Cold atmospheric pressure plasmas can be used for treatment of living tissues or for inactivation of bacteria or biological macromolecules. The treatment is usually characterized by a combined effect of UV and VUV radiation, reactive…

Plasma Physics · Physics 2015-05-28 S. Schneider , J. -W. Lackmann , F. Narberhaus , J. E. Bandow , B. Denis , J. Benedikt

In the last months several ballon and satellite experiments improved significantly our knowledge of cosmic rays (CR) spectra at high energy. In particular CREAM allowed to measure B/C, C/O and N/O up to 1 TeV and PAMELA the anti-p/p ratio…

High Energy Astrophysical Phenomena · Physics 2009-09-25 C. Evoli , D. Gaggero , D. Grasso , L. Maccione

We report on the successful operation of a double phase Liquid Argon Large Electron Multiplier Time Projection Chamber (LAr LEM-TPC) equipped with two dimensional projective anodes with dimensions 10$\times$10 cm$^2$, and with a maximum…

Instrumentation and Detectors · Physics 2015-06-18 C. Cantini , L. Epprecht , A. Gendotti , S. Horikawa , S. Murphy , G. Natterer , L. Periale , F. Resnati , A. Rubbia , F. Sergiampietri , T. Viant , S. Wu

A prototype Dual Gain Multilayer Thick Gas Electron Multilyer (DG-M-THGEM) with an active area of 10 cm $\times$ 10 cm was manufactured aiming at the production of a large-volume active-target time projection chamber which can work under…

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