A5027053726- Particle accelerators and beam dynamics
- Magnetic confinement fusion research
- Plasma Diagnostics and Applications
- Superconducting Materials and Applications
- Gyrotron and Vacuum Electronics Research
- Particle Accelerators and Free-Electron Lasers
- Drug Solubulity and Delivery Systems
- Nuclear reactor physics and engineering
- Nuclear Physics and Applications
- Advancements in Transdermal Drug Delivery
- Fusion materials and technologies
- Advanced Data Storage Technologies
- Innovative Microfluidic and Catalytic Techniques Innovation
- Misinformation and Its Impacts
- Aortic aneurysm repair treatments
- Urban Heat Island Mitigation
- Urologic and reproductive health conditions
- Catalytic Processes in Materials Science
- Urological Disorders and Treatments
- Electromagnetic Launch and Propulsion Technology
- Ionosphere and magnetosphere dynamics
- Spam and Phishing Detection
- Advanced Electrical Measurement Techniques
- Laser-Plasma Interactions and Diagnostics
- Smart Grid Security and Resilience
Maharaja Sayajirao University of Baroda
2025
Dharmsinh Desai University
2023-2024
Institute for Plasma Research
2010-2024
Indian Institute of Information Technology Vadodara
2021
Max Planck Institute for Plasma Physics
2011
Manchester Royal Infirmary
2005
University of Manchester
2005
King's College London
2005
Addenbrooke's Hospital
2005
St Thomas' Hospital
2005
The Indian program of the RF based negative ion source has started off with commissioning ROBIN, inductively coupled facility under establishment at Institute for Plasma research (IPR), India. is being developed a technology transfer agreement IPP Garching. It consists single driver beam (BATMAN replica) to 100 kW, 1 MHz generator self excited oscillator, through matching network, plasma production and extraction acceleration. delivery without accelerator, enabled initiation experiments....
RF systems in the ion cyclotron resonance frequency (ICRF) range and electron (ECRF) are an advanced stage of commissioning, to carry out pre-ionization, breakdown, heating current drive experiments on steady-state superconducting tokamak SST-1. Initially 1.5 MW continuous wave ICRF system would be used heat SST-1 plasma 1.0 keV during a pulse length 1000 s. For different scenarios at 3.0 T, wide band operating frequencies (20–92 MHz) is required. To meet this requirement two CW rf...
Views Icon Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Twitter Facebook Reddit LinkedIn Tools Reprints and Permissions Cite Search Site Citation G. Bansal, K. Pandya, M. Bandyopadhyay, A. Chakraborty, J. Singh, Soni, Gahlaut, Parmar; Cesium Delivery System for Negative Ion Source at IPR. AIP Conference Proceedings 26 September 2011; 1390 (1): 614–623. https://doi.org/10.1063/1.3637433 Download citation file: Ris (Zotero) Reference Manager EasyBib...
Distribution of cesium in large negative ion beam sources to be operational ITER, is presently based on the use three or more ovens, which operate simultaneously and are controlled remotely. However, multiple Cs ovens likely pose difficulties operation maintenance ovens. An alternate method delivery, a single oven distribution system proposed as one could reduce need simultaneous many A proof principle experiment verifying concept multinozzle distributor has been carried out at Institute for...
Inductively coupled radio-frequency (RF)-based multidriver negative ion sources form the basis of for neutral beam injectors considered present-day fusion devices. Information on operational behavior such RF is limited. Thus, an Indian program development and operation has been initiated to support enhance existing information thus contribute successful large-size sources. Experiments under this have objective understanding physics technology plasma production its control in presence...
Electron Cyclotron Resonance Heating (ECRH) system will play an important role in plasma formation, heating and current drive the Superconducting Steady state Tokamak (SST-1). Commissioning activity of machine has been initiated. Many sub-systems have prepared for first discharge. A radial a top port allotted low field side (LFS) high (HFS) launch O X- modes plasma.
ROBIN, the first step in Indian R&D program on negative ion beams has reached an important milestone, with production of ions surface conversion mode through Cesium (Cs) vapor injection into source. In present set-up, hydrogen beam extraction is effected area ∼73.38 cm2 (146 apertures 8mm diameter). The three grid electrostatic accelerator system ROBIN fed by high voltage DC power supplies (Extraction Power Supply System: 11kV, 35A and Acceleration 35kV, 15A). Though, a considerable...
Pulsed and continuous high power microwave tubes need to be protected against arc faults within the tube. If energy dumped in such fault is more than critical crater of tube, irreparable damage can occur. Modern switch mode powers supplies (SMPS) that are generally opted for new systems store little capable switching HV few microseconds. So they do not separate protection. However, when conventional feed a reliable crowbar protection system, tested separately limit energy, must used assure...
The first step in the Indian program on negative ion beams is setting up of Negative Experimental Assembly – RF based, where 100 kW power shall be coupled to a plasma source producing density ~5 × 1012 cm-3, from which ~ 10 A beam produced and accelerated 35 kV, through an electrostatic accelerator. experimental system modelled similar based source, BATMAN presently operating at IPP, Garching, Germany. mechanical for Ion Source close IPP remaining systems are designed procured principally...
Negative ion Experimental facility has been setup at IPR. The consists of a RF based negative source (ROBIN)—procured under license agreement with IPP Garching, as replica BATMAN, presently operating in IPP, 100 kW 1 MHz generators and set low high voltage power supplies, vacuum system diagnostics. 35 keV 10A H‐ beam is expected from this setup. Automated successful operation the requires an advanced, rugged, time proven flexible control system. Further data generated experimental phase...
To characterize ITER Diagnostic Neutral Beam (DNB) system with full specification and to support IPR's negative ion beam based neutral injector (NBI) development program, a R&D facility, named INTF is under commissioning phase. Implementation of successful DNB at requires several challenges need be overcome. These issues are related the production, its neutralization corresponding transport over path lengths ∼ 20.67 m reach plasma. procurement package for INDIA, as an in-kind contribution...
The lower hybrid current drive (LHCD) system is an important in superconducting steady state tokamak (SST-1). It used to and maintain the plasma for 1000 s with a duty cycle of 17%. LHCD being designed launch 1 MW radio frequency (rf) power at 3.7 GHz. rf source comprised two high klystron amplifiers, each capable delivering 500 kW power. In this article, results obtained during installation commissioning these klystrons are presented. Two (model TH2103D) have been successfully installed...
Inductively coupled radio frequency (RF) based multi-driver negative ion sources form the basis of for Neutral Beam (NB) injectors considered fusion devices. Database such operations are limited. A need supplementing database is paramount development large size sources. Under Indian program, experiments initiated with objective understanding physics and technology multi driver coupling. Radio NB systems have addressed to this requirement in configuring an experimental system consisting a two...
The setting up of RF based negative ion experimental facility shall witness the beginning experiments on source fusion applications in India. A 1 MHz generator launch 100 kW power into a single driver plasma to produce density ~5 × 1012 cm-3. can deliver beam ~10 with current ~30 mA/cm2 and accelerated 35 kV through an electrostatic accelerator. system is similar source, BATMAN, presently operating at IPP. subsystems for operation are designed procured principally from indigenous resources,...
The Indian Test Facility (INTF) for Neutral Beams is designed with the objective to not only test performance of an ion source but also characterize transmission Beam a length 20.66 m and thereby generate adequate database on quality beam that required CXRS diagnostics measurement Helium ash content in fusion plasma.
Introduction: The critical and complex properties of Biopharmaceutics Classification System Class II quetiapine fumarate active pharmaceutical ingredient molecules that complicate effective oral delivery these ingredients include low aqueous solubility reduced bioavailability. Objective: objective this investigation is to develop a nanosuspension formulation using media milling techniques effectively reduce particle size enhance dissolution rate. Method: Quetiapine Nano suspensions were...
In SST-1 and Aditya-U Tokamaks, two ECRH systems (42GHz-500kW 82.6GHz-200k) are used to carry out various experiments related assisted plasma start-up heating at fundamental second harmonic. The tokamak is operated 1.5T magnetic field 42GHz system has been extensively for heating. 82.6GHz could not be thoroughly due limitation in power as 200kW enough breakdown original 82.6GHz-200kW being upgraded terms of experiment higher power. Gyrotron 400kW tested successfully factory delivers 48kV...
The main aim of the present study was to improve release profile Paroxetine (PXT) using Novel Drug Delivery System (NDDS). Therefore, Controlled Release Matrix tablet PXT prepared extend drug from 8 hours 12 hours. In research work, controlled matrix paroxetine by wet granulation method various polymer grades Hydroxypropyl methylcellulose (HPMC) and Polyvinylpyrrolidone (PVP) like HPMC K100M, K4M, K100M LV, PVP K-30. Central Composite Design applied optimize amount polymers in tablet....