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A self quenching streamer (SQS), or limited streamer mode has been studied in single wire chambers with cross-sections 12x12 mm and wire diameters 15, 25 and 50 microns. Chambers were filled with either pure dimethyl ether (DME) or…

Instrumentation and Detectors · Physics 2009-11-11 Yu. I. Davydov , R. Openshaw

The Muon Chamber (MuCh) is a sub-system of the Compressed Baryonic Matter (CBM) experiment for the detection of low-mass-vector mesons produced in high energy heavy-ion collisions at beam energies ranging from 2 AGeV to 11 AGeV and decaying…

Instrumentation and Detectors · Physics 2022-01-04 Mitali Mondal , Tanay Dey , Subhasis Chattopadhyay , Jogender Saini , Zubayer Ahammed

A Time Projection Chamber (TPC) is an ideal device for the detection of charged particle tracks in a large volume covering a solid angle of almost $4\pi$. The high density of hits on a given particle track facilitates the task of pattern…

Due to their simplicity and comparatively low cost Resistive Plate Chambers are gaseous detectors widely used in high-energy and cosmic rays physics when large detection areas are needed. However, the best gaseous mixtures are currently…

Instrumentation and Detectors · Physics 2022-09-07 Alessandro Ferretti

A new concept is presented for the reduction of ion back-flow in GEM-based cascaded gaseous electron multipliers, by incorporating Micro-Hole & Strip Plate (MHSP) elements operating in reversed-bias mode (R-MHSP). About an order of…

Instrumentation and Detectors · Physics 2007-05-23 A. V. Lyashenko , A. Breskin , R. Chechik , J. F. C. A. Veloso , J. M. F. Dos Santos , F. D. Amaro

This paper reports the latest developmental efforts for a position-sensitive glass-based Resistive Plate Chamber (RPC) and a multi-channel Data AcQuisition (DAQ) system tailored for muon tracking in muography applications. The designed…

Instrumentation and Detectors · Physics 2024-02-26 V. Kumar , S. Basnet , E. Cortina Gil , P. Demin , R. M. I. D. Gamage , A. Giammanco , R. Karnam , M. Moussawi , A. Samalan , M. Tytgat , A. Youssef

The Resistive Plate Chambers (RPC) are low-cost charged-particle detectors with good timing resolution and potentially good spatial resolution. Using RPC as gamma detector provides an opportunity for application in positron emission…

Instrumentation and Detectors · Physics 2014-02-20 Zhou Weizheng , Shao Ming , Li Cheng , Chen Hongfang , Sun Yongjie , Chen Tianxiang

The high pseudorapidity ($\eta$) region of the Compact Muon Solenoid (CMS) muon system is covered by Cathode Strip Chambers only and lacks redundant coverage despite the fact that it is a challenging region for muons in terms of backgrounds…

Instrumentation and Detectors · Physics 2020-01-29 E. Voevodina , I. Crotty

We report on a systematic study of double-gap and four-gap phenolic resistive plate chambers (RPCs) for future high-{\eta} RPC triggers in the CMS. In the present study, we constructed real-sized double-gap and four-gap RPCs with gap…

The MICROMEGAS (MICRO-MEsh GAseous Structure) charge amplification structure has found wide use in many detection applications, especially as a gain stage for the charge readout of Time Projection Chambers (TPCs). Here we report on the…

Microbial fuel cells (MFCs) perform wastewater treatment and electricity production through the conversion of organic matter using microorganisms. For practical applications, it has been suggested that greater efficiency can be achieved by…

Neural and Evolutionary Computing · Computer Science 2022-12-05 Richard J. Preen , Jiseon You , Larry Bull , Ioannis A. Ieropoulos

Analytical and semi-analytical models for stream depletion with transient stream stage drawdown induced by groundwater pumping are developed to address a deficiency in existing models, namely, the use of a fixed stream stage condition at…

Fluid Dynamics · Physics 2024-07-17 Bwalya Malama , Ying-Fan Lin , Kristopher L. Kuhlman

Motivated by recent experimental advances (Stroock et al. 2002) in microfluidic mixers, we study the passive mixing and flow properties of a patterned microchannel by means of computational fluid dynamics (CFD). Such geometries overcome the…

Soft Condensed Matter · Physics 2007-05-23 J. P. Bennett , C. H. Wiggins

We performed a new series of systematic studies of gain and rate characteristics of several micropattern gaseous detectors. Extending earlier studies, these measurements were done at various pressures, gas mixtures, at a wide range of…

Instrumentation and Detectors · Physics 2007-05-23 V. Peskov , P. Fonte , M. Danielsson , C. Iacobaeus , J. Ostling , M. Wallmark

Mixing of binary fluids by moving stirrers is a commonplace process in many industrial applications, where even modest improvements in mixing efficiency could translate into considerable power savings or enhanced product quality. We propose…

Fluid Dynamics · Physics 2020-07-27 Maximilian F. Eggl , Peter J. Schmid

A Pilot unit of a closed loop gas (CLS) mixing and distribution system for the INO project was designed and is being operated with (1.8 x 1.9) m^2 glass RPCs (Resistive Plate Chamber). The performance of an RPC depends on the quality and…

Instrumentation and Detectors · Physics 2017-02-07 S. D. Kalmani , S. Mondal , R. R. Shinde , P. V. Hunagund

Inverse Patchy Colloids (IPCs) differ from conventional patchy particles because their patches repel (rather than attract) each other and attract (rather than repel) the part of the colloidal surface that is free of patches. These…

Soft Condensed Matter · Physics 2014-12-12 Silvano Ferrari , Emanuela Bianchi , Yura V. Kalyuzhnyi , Gerhard Kahl

We have developed microstrip gas counters manufactured on standard printed circuit board and having the following features: resistive cathode strips, thin (10 micron) metallic anode strips and electrodes protected against surface discharges…

Instrumentation and Detectors · Physics 2011-07-28 R. Oliveira , V. Peskov , F. Pietropaolo , P. Picchi

In this paper, we propose a novel predictive safety filter that is robust to bounded perturbations and is implemented in an even-triggered fashion to reduce online computation. The proposed safety filter extends upon existing work to reject…

Systems and Control · Electrical Eng. & Systems 2024-04-29 Wenceslao Shaw Cortez , Jan Drgona , Draguna Vrabie , Mahantesh Halappanavar

We present experimental results on the counting rate measurements for several single-gap $^{10}$B lined resistive plate chambers ($^{10}$B-RPCs) with anodes made from standard float glass, low resistivity glass and ceramic. The measurements…