A5031217266- Radioactivity and Radon Measurements
- Neutrino Physics Research
- Astrophysics and Cosmic Phenomena
- Particle physics theoretical and experimental studies
- Nuclear Physics and Applications
- Nuclear and radioactivity studies
- Graphite, nuclear technology, radiation studies
- Radioactive contamination and transfer
- Radiation Detection and Scintillator Technologies
- Geological and Geochemical Analysis
- Dark Matter and Cosmic Phenomena
- Heavy metals in environment
- Radiation Dose and Imaging
- earthquake and tectonic studies
- Geochemistry and Geologic Mapping
- Genetics and Plant Breeding
- Heavy Metals in Plants
- Particle Detector Development and Performance
- High-pressure geophysics and materials
- Crop Yield and Soil Fertility
- Rice Cultivation and Yield Improvement
- Wheat and Barley Genetics and Pathology
- Earthquake Detection and Analysis
- Nuclear Materials and Properties
- Agricultural Science and Fertilization
University of Calabria
2024
Pakistan Institute of Nuclear Science and Technology
2008-2023
Islamia University of Bahawalpur
2011-2022
University of Azad Jammu and Kashmir
2004
Pakistan Institute of Engineering and Applied Sciences
2004
A bstract We present the calibration strategy for 20 kton liquid scintillator central detector of Jiangmen Underground Neutrino Observatory (JUNO). By utilizing a comprehensive multiple-source and multiple-positional program, in combination with novel dual calorimetry technique exploiting two independent photosensors readout systems, we demonstrate that JUNO can achieve better than 1% energy linearity 3% effective resolution, required by neutrino mass ordering determination.
The Taishan Antineutrino Observatory (TAO, also known as JUNO-TAO) is a satellite experiment of the Jiangmen Underground Neutrino (JUNO). A ton-level liquid scintillator detector will be placed at about 30 m from core Nuclear Power Plant. reactor antineutrino spectrum measured with sub-percent energy resolution, to provide reference for future neutrino experiments, and benchmark measurement test nuclear databases. spherical acrylic vessel containing 2.8 ton gadolinium-doped viewed by 10 m^2...
Abstract The Jiangmen Underground Neutrino Observatory (JUNO) features a 20 kt multi-purpose underground liquid scintillator sphere as its main detector. Some of JUNO's make it an excellent location for B solar neutrino measurements, such low-energy threshold, high energy resolution compared with water Cherenkov detectors, and much larger target mass previous detectors. In this paper, we present comprehensive assessment potential detecting neutrinos via the neutrino-electron elastic...
Main goal of the JUNO experiment is to determine neutrino mass ordering using a 20kt liquid-scintillator detector. Its key feature an excellent energy resolution at least 3 % 1 MeV, for which its instruments need meet certain quality and thus have be fully characterized. More than 20,000 20-inch PMTs been received assessed by after detailed testing program began in 2017 elapsed about four years. Based on this characterization set specific requirements, good all accepted could ascertained....
Abstract We present the detection potential for diffuse supernova neutrino background (DSNB) at Jiangmen Underground Neutrino Observatory (JUNO), using inverse-beta-decay (IBD) channel on free protons. employ latest information DSNB flux predictions, and investigate in detail its reduction search JUNO. The atmospheric induced neutral current (NC) turns out to be most critical background, whose uncertainty is carefully evaluated from both spread of model predictions an envisaged situ...
A bstract JUNO is a massive liquid scintillator detector with primary scientific goal of determining the neutrino mass ordering by studying oscillated anti-neutrino flux coming from two nuclear power plants at 53 km distance. The expected signal interaction rate only 60 counts per day (cpd), therefore careful control background sources due to radioactivity critical. In particular, natural present in all materials and environment represents serious issue that could impair sensitivity...
Abstract The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this study, the potential of searching for proton decay mode with JUNO investigated. kaon and its particles feature clear three-fold coincidence signature that results high efficiency identification. Moreover, excellent energy resolution permits suppression sizable background caused by other delayed signals. Based on these...
Abstract This present study is concerned with the group-invariant solutions of (3 + 1)-dimensional Martinez Alonso–Shabat equation by using Lie symmetry method. The transformation technique used to deduce infinitesimals, operators, commutation relations, and reductions. optimal system for obtained algebra concept adjoint map. As now, considered model converted into nonlinear ordinary differential equations (ODEs) in two cases exact closed-form are applying constraint conditions on...
Determination of gamma emitting radionuclides in shallow marine sediments off the Sindh coast has been carried out using a spectrometry technique. The activity concentration measured various sediment samples found to vary from 15.93 +/- 5.22 30.53 4.70 Bq kg(-1) for 226Ra, 11.72 1.22 33.94 1.86 228Ra and 295.22 32.83 748.47 28.75 40K. calculated mean values radium equivalent activity, absorbed dose rate effective are 98 kg(-1), 49 nGy h(-1) 0.06 mSv y(-1), respectively. No artificial...
The Khewra Salt Mines, the second largest salt mines in world, are located 160 km south of Islamabad, capital Pakistan. Around 1000 workers involved removal from these mines. More than 40,000 visitors come annually to see and directly exposed internal external radiological hazards radon gamma rays general public is affected by intake containing naturally occurring radionuclides. Therefore concentration (²²²Rn) Mines activity concentrations radionuclides samples were measured. Both active...
Abstract The OSIRIS detector is a subsystem of the liquid scintillator filling chain JUNO reactor neutrino experiment. Its purpose to validate radiopurity assure that all components system work specifications and only neutrino-grade filled into Central Detector. aspired sensitivity level $$10^{-16}\hbox { g/g}$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:msup> <mml:mn>10</mml:mn> <mml:mo>-</mml:mo> <mml:mn>16</mml:mn> </mml:mrow> </mml:msup> <mml:mspace />...
Natural radionuclide contents of 226Ra, 228Ra and (40)K were studied for inter-tidal sediments collected from selected locations off the745 km long Balochistan Coast using HPGe detector based gamma-spectrometry system. The sampling zone extends the beaches Sonmiani (near Karachi metropolis) through Jiwani (close to border Iran). natural radioactivity levels detected in various sediment samples range 14.4 +/- 2.5 36.6 3.8 Bq kg(-1) 9.8 1.2 35.2 2.0 (228)Ra 144.6 9.4 610.5 23.9 (40)K. No...
Journal Article Measurement of natural radioactivity in sand samples collected along the bank rivers Indus and Kabul northern Pakistan Get access F. Malik, Malik * Physics Division, PINSTECH, P.O. Nilore, Islamabad, *Corresponding author: fariha_malik05@yahoo.com Search for other works by this author on: Oxford Academic PubMed Google Scholar Matiullah, Matiullah M. Akram, Akram U. Rajput Radiation Protection Dosimetry, Volume 143, Issue 1, January 2011, Pages 97–105,...
A bstract We study damping signatures at the Jiangmen Underground Neutrino Observatory (JUNO), a medium-baseline reactor neutrino oscillation experiment. These are motivated by various new physics models, including quantum decoherence, ν 3 decay, absorption, and wave packet decoherence. The phenomenological effects of these models can be characterized exponential factors probability level. assess how well JUNO constrain parameters to disentangle different JUNO. Compared current experimental...
Abstract We discuss JUNO sensitivity to the annihilation of MeV dark matter in galactic halo via detecting inverse beta decay reactions electron anti-neutrinos resulting from annihilation. study possible backgrounds signature, including reactor neutrinos, diffuse supernova neutrino background, charged- and neutral-current interactions atmospheric muon-induced fast neutrons cosmogenic isotopes. A fiducial volume cut, as well pulse shape discrimination muon veto are applied suppress above...
The OSIRIS detector is a subsystem of the liquid scintillator fillling chain JUNO reactor neutrino experiment. Its purpose to validate radiopurity assure that all components system work specifications and only neutrino-grade filled into Central Detector. aspired sensitivity level $10^{-16}$ g/g $^{238}$U $^{232}$Th requires large ($\sim$20 m$^3$) detection volume ultralow background levels. present paper reports on design major detector, simulation as well measuring strategies foreseen...