Development of glass resistive plate chambers for INO experiment

Datar, V. M.; Jena, S.; Kalmani, S.D.; Mondal, N. K.; Nagaraj, P.; Reddy, L.V.; Saraf, M. N.; Satyanarayana, B.; Shinde, R. R.; Verma, Prabal Singh

doi:10.1016/j.nima.2008.12.129

Cited by 38 publications

(24 citation statements)

References 4 publications

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“…The ICAL will mainly look for the ν µ andν µ induced CC interactions using magnetized iron as the target mass and the Resistive Plate Chambers (RPC) [2] as the active detector elements. It will consist of three identical and adjacent modules, each of dimension 16 m ×16 m ×14.5 m. Each of the modules will contain 151 horizontal layers of 5.6 cm thick iron plates interspersed with 4 cm gaps into which the RPC assemblies will be placed.…”

Section: The Ical Detector At Inomentioning

confidence: 99%

Ino

Devi¹

2015

Proceedings of 16th International Workshop on Neutrino Factories and Future Neutrino Beam Facilities — PoS(NUFACT2014)

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The India-based Neutrino Observatory (INO) is an underground laboratory to be located in the Bodi West Hills, in the Theni district of Tamil Nadu in South India. The main experiment at INO is a magnetized iron calorimeter (ICAL) which will study the oscillations in the atmospheric neutrino sector. The ICAL will primarily aim at distinguishing the neutrino mass hierarchy through the study of the Earth's matter effects in the atmospheric ν µ andν µ . It will also determine the atmospheric neutrino mixing parameters with a fine precision and will probe the hints of new physics. The ICAL physics motivations, the detector description and present status of the detector simulation and physics reach studies are presented here.

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Section: The Ical Detector At Inomentioning

confidence: 99%

Ino

Devi¹

2015

Proceedings of 16th International Workshop on Neutrino Factories and Future Neutrino Beam Facilities — PoS(NUFACT2014)

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“…Single gap RPC detectors have been chosen as the active detector elements for the magnetized Iron CALorimeter (ICAL) detector, due to their high efficiency, position and timing characteristics besides their long-term suitability for large detector coverage [12]. However as a part of the extended R&D at INO, MRPC detectors have been developed to find potential application in TOF detectors, medical imaging etc.…”

Section: Introductionmentioning

confidence: 99%

Design, development and performance study of six-gap glass MRPC detectors

et al. 2016

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The multigap resistive plate chambers (MRPCs) are gas ionization detectors with multiple gas sub-gaps made of resistive electrodes. The high voltage (HV) is applied on the outer surfaces of outermost resistive plates only, while the interior plates are left electrically floating. The presence of multiple narrow sub-gaps with high electric field results in faster signals on the outer electrodes, thus improving the detector's time resolution. Due to their excellent performance and relatively low cost, the MRPC detector has found potential application in time-of-flight (TOF) systems. Here we present the design, fabrication, optimization of the operating parameters such as the HV, the gas mixture composition, and, performance of six-gap glass MRPC detectors of area 27 cm × 27 cm, which are developed in order to find application as trigger detectors, in TOF measurement etc. The design has been optimized with unique spacers and blockers to ensure a proper gas flow through the narrow sub-gaps, which are 250 µm wide. The gas mixture consisting of R134A, Isobutane and SF 6 , and the fraction of each constituting gases has been optimized after studying the MRPC performance for a set of different concentrations. The counting efficiency of the MRPC is about 95% at 17.9 kV. At the same operating voltage, the time resolution, after correcting for the walk effect, is found to be about 219 ps.

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“…The ICAL aims to study the interactions of atmospheric neutrinos and antineutrinos [1]. It is a giant magnetized neutrino detector, with Resistive Plate Chambers (RPCs) as the active detector elements [2,3,4]. It comprises of 3 modules, with ∼30,000 RPCs, and 151 iron layers weighing ∼50kton in total.…”

Section: Introductionmentioning

confidence: 99%

Muonless Events in ICAL at INO

Ali¹,

Umasankar²

2016

Proceedings of the European Physical Society Conference on High Energy Physics — PoS(EPS-HEP2015)

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The primary physics signal events in the Iron Calorimeter at India-based Neutrino Observatory are the ν µ charged current (CC) interactions with a well defined muon track. Apart from these events, Iron Calorimeter can also detect other types of neutrino interactions, i.e. the electron neutrino charged current interactions and the neutral current events. It is possible to have a dataset containing mostly ν e CC events, by imposing appropriate selection cuts on the events. The ν µ CC and the neutral current events form the background to these events. This study uses Monte Carlo generated neutrino events, to design the necessary selection cuts to obtain a ν e CC rich dataset. An optimized set of constraints are developed which balance the need for improving the purity of the sample and having a large enough event sample. Depending on the constraints used, one can obtain a neutrino data sample with the purity of ν e events varying between 55% to 70%.

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Development of glass resistive plate chambers for INO experiment

Cited by 38 publications

References 4 publications

Ino

Ino

Design, development and performance study of six-gap glass MRPC detectors

Muonless Events in ICAL at INO

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