Search Results - "Karkari, Shantanu"

An Electrical Impedance-Based Technique to Infer Plasma Density in a 13.56-MHz Magnetized Capacitive Coupled RF Discharge by Binwal, Shikha, Joshi, Jay K., Karkari, Shantanu K., Nair, Lekha

“…Plasma density in a magnetized, capacitive-coupled, radio frequency (RF) discharge has been determined using the electrical impedance characteristics of the…”
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Effect of Magnetization on Impedance Characteristics of a Capacitive Discharge Using Push-Pull Driven Cylindrical Electrodes by Joshi, Jay K., Karkari, Shantanu K., Kumar, Sunil

“…The impedance characteristics of a 13.56-MHz capacitively driven, symmetric magnetized discharge, created in argon and helium using an array of cylindrical…”
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The Role of Apex Angle of a Cone-Shaped Hollow Cathode on Plasma Parameters by Bhuva, Montu P., Karkari, Shantanu K.

“…An analytical model based on particle and energy conservation equations has been developed to determine the plasma parameters inside conical and cylindrical…”
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Positive ion speed at the plasma–sheath boundary of a negative ion‐emitting electrode by Pandey, Avnish K., Karkari, Shantanu K.

“…One‐dimensional fluid model for a planar sheath in front of a negative ion‐emitting electrode surface immersed in a collision‐less, non‐magnetized,…”
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Design, development, and analysis of 1 to 4, anti-phase in-line RF power splitter for low-frequency ISM band applications by Senjaliya, Chirag, Karkari, Shantanu Kumar

“…A wideband, low-loss balun-based anti-phase radio-frequency power splitter using a ferrite core is studied. The inherent impedance matching with the existing…”
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Unconventional apparatuses and diagnostic techniques for studying negative ion plasmas in laboratory devices by Karkari, Shantanu Kumar

“…Negative ion plasmas at low temperatures are essential for a wide variety of plasma applications, including neutral beam injection heating in fusion devices,…”
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Investigation of the pulsed magnetron discharge by time- and energy-resolved mass spectrometry by Mišina, Martin, Bradley, James W, Bäcker, Hermann, Aranda-Gonzalvo, Yolanda, Karkari, Shantanu K, Forder, Don

“…The mass and energy spectra of the positive and negative ions at a substrate were measured in a pulsed magnetron (20–100 kHz) operated in argon, argon/oxygen…”
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Plasma Sources and Diagnostic Solution for Investigating Laboratory Plasmas by Karkari, Shantanu K., Patil, Y., Pandey, Avnish K., Das, S., Singh, Pawandeep, Dahiya, Swati, Sirse, N.

“…Laboratory plasma experiments serve as an essential tool for mimicking complicated phenomena seen in space plasma and at the plasma-material interface…”
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Magnetic field induced electron temperature inhomogeneity effects on discharge properties in cylindrical capacitively coupled plasmas by Dahiya, Swati, Singh, Pawandeep, Das, Satadal, Sirse, Nishant, Karkari, Shantanu Kumar

“…This paper presents the discharge properties of a novel cylindrical Capacitively Coupled Plasma (CCP) discharge with an axisymmetric magnetic field. It is…”
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Spatial Temperature Profile in a Magnetised Capacitively Coupled Discharge by BINWAL, Shikha, JOSHI, Jay K, KARKARI, Shantanu Kumar, KAW, Predhiman Krishan, NAIR, Lekha, LEGGATE, Huw, SOMERS, Aoife, TURNER, Miles M

“…A floating emissive probe has been used to obtain the spatial electron temperature (Te) profile in a 13.56 MHz parallel plate capacitive coupled plasma. The…”
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Addressing the anomalies in determining negative ion parameters using electrostatic probes by Singh, Pawandeep, Karkari, Shantanu Kumar

“…The negative ion density and temperature are the two fundamental parameters that are necessary to quantify the properties of electronegative discharges…”
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Development of Volume Produced Negative Ion Source using a CCRF Discharge by Singh, Pawandeep, Dahiya, Swati, Pandey, Avnish, Patil, Yashashri, Karkari, Shantanu

“…This work shows the development of a volume-produced negative ion source that consists of annular parallel plates driven by a 13.56 MHz capacitively coupled…”
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Resonance hairpin and Langmuir probe-assisted laser photodetachment measurements of the negative ion density in a pulsed dc magnetron discharge by Bradley, James W., Dodd, Robert, You, S.-D., Sirse, Nishant, Karkari, Shantanu Kumar

“…The time-resolved negative oxygen ion density n − close to the center line in a reactive pulsed dc magnetron discharge (10 kHz and 50% duty cycle) has been…”
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Equilibrium potential profile across magnetic field in inhomogeneous electronegative plasma by Singh, Pawandeep, Swati, Karkari, Shantanu Kumar

“…J. Phys. D: Appl. Phys. 55 235201 (2022) This paper presents the plasma potential distribution across magnetic field lines in an argon/oxygen plasma created by…”
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Sheath effects with thermal electrons on the resonance frequency of a DC-biased hairpin probe by Singh, Pawandeep, Pandey, Avnish, Dahiya, Swati, Patil, Yashashri, Sirse, Nishant, Karkari, Shantanu

“…The dielectric constant of a sheath, whether ionic or electronic, formed around the cylindrical limbs of a hairpin probe, is often considered the same as that…”
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Experimental investigation of an electronegative cylindrical capacitively coupled geometrically asymmetric plasma discharge with an axisymmetric magnetic field by Dahiya, Swati, Sharma, Narayan, Geete, Shivani, Sharma, Sarveshwar, Sirse, Nishant, Karkari, Shantanu

“…In this study, we have investigated the production of negative ions by mixing electronegative oxygen gas with electropositive argon gas in a geometrically…”
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Positive Ion Impediment by short-circuiting effect in a magnetized plasma column by Das, Satadal, Karkari, Shantanu K

“…The radial characteristic of a partially magnetized plasma column created by a hot cathode filament is presented. It is found that in the absence of magnetic…”
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Discharge characteristics of a low-pressure geometrically asymmetric cylindrical capacitively coupled plasma with an axisymmetric magnetic field by Dahiya, Swati, Singh, Pawandeep, Patil, Yashashri, Sharma, Sarveshwar, Sirse, Nishant, Karkari, Shantanu Kumar

“…Phys. Plasmas 30, 093505 (2023) We investigate the discharge characteristics of a low-pressure geometrically asymmetric cylindrical capacitively coupled plasma…”
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Observation of Electron Density Oscillations in Confined Plasma with Two Radio-Frequency Capacitive Sheath by Karkari, Shantanu K., Gaman, C., Ellingboe, Albert R.

“…Summary form only given. The spatial electron density oscillation in a symmetric, two radio-frequencies, 27.12 MHz and 1.937 MHz, confined- capacitive-coupled…”
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Spatial Temperature Profile in a Magnetised Capacitively Coupled Discharge by Shikha BINWAL, Jay K JOSHI, Shantanu Kumar KARKARI, Predhiman Krishan KAW, Lekha NAIR, Huw LEGGATE, Aoife SOMERS, Miles M TURNER

“…A floating emissive probe has been used to obtain the spatial electron temperature (Te) profile in a 13.56 MHz parallel plate capacitive coupled plasma. The…”
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