A5053449762- Pulsed Power Technology Applications
- Gyrotron and Vacuum Electronics Research
- Laser-Matter Interactions and Applications
- Laser-Plasma Interactions and Diagnostics
- Electrostatic Discharge in Electronics
- Particle accelerators and beam dynamics
- Laser Design and Applications
- Particle Accelerators and Free-Electron Lasers
- Laser Material Processing Techniques
- Plasma Diagnostics and Applications
- Electromagnetic Launch and Propulsion Technology
- Advanced Fiber Laser Technologies
- Laser-induced spectroscopy and plasma
- Electron and X-Ray Spectroscopy Techniques
- Nuclear Physics and Applications
- Plasma Applications and Diagnostics
- Solid State Laser Technologies
- Smart Systems and Machine Learning
- Thermography and Photoacoustic Techniques
- IoT and GPS-based Vehicle Safety Systems
- Ocular and Laser Science Research
- Dental Erosion and Treatment
- Power Line Inspection Robots
- Laser Applications in Dentistry and Medicine
- Luminescence Properties of Advanced Materials
Bhabha Atomic Research Centre
1998-2019
Bhabha Atomic Research Center Hospital
2015
Naval Science & Technological Laboratory
2012
Variable Energy Cyclotron Centre
2000-2004
In this work, the formation of clusters in a supersonic jet expansion has been investigated. Clusters argon, carbon-dioxide, nitrogen, and oxygen have generated gas with three different types nozzles (0.5 mm diameter, 0.8 conical nozzle diameter aperture). The mean size density measured as function backing pressure. Here, refers to cluster collection. Rayleigh scattering experimental data Mach-Zehnder interferometer combined estimate average clusters. CO2 Ar form easily at about pressure 2...
Plasma foci of compact sizes and operating with low energies (from tens joules to few hundred joules) have found application in recent years attracted plasma-physics scientists engineers for research this direction. We are presenting a energy miniature plasma focus which operates from capacitor bank 8.4 muF capacity, charged at 4.2-4.3 kV delivering approximately 52 kA peak current 60 nH calculated circuit inductance. The total inductance includes the reported lowest voltage among all so...
The helical pulsed forming line (PFL) can generate longer duration rectangular pulse in a smaller length. A compact PFL using water is designed and experimentally investigated. impedance of the 22 [ohm sign]. compactness achieved terms reduction length by factor 5.5 as compared to coaxial same was charged 200 kV high voltage transformer 4.5 μs discharged into matched Ω resistive load through self-breakdown pressurized spark gap switch. 100 kV, 260 ns (FWHM) measured across load. effect...
Ceramic material has very high relative permittivity, so compact pulse forming line can be made using these materials. Barium titanate (BaTiO3) a permittivity of 1200 it is used for making (PFL). also piezoelectric effects cracks during voltages discharges due to stresses developed in it. mixed with rubber which absorbs the when PFL charged and regain its original shape after discharge. A composite mixture barium neoprene prepared. The measured 85. coaxial inner diameter 120 mm, outer 240...
Describes Monte Carlo calculations pertaining to the penetration of electron beams through compounds. The distribution range electrons in solids has been studied quantitatively. New data are presented on reflection, absorption and transmission coefficients, most probable a few typical compounds, for incident beam energies up 0.5 MeV.
For the generation of microwaves, Electron beam devices operating in vacuum are most widely used. pulsed and high power microwave generation, Virtual cathode oscillators (VIRCATORs) said to be simple operation construction. They generally driven by a source which gives input powers Vircator connected as load. Vircator, depending upon its efficiency, converts electrical power. We presenting results an axial 2×10−4 mbar is compact source. The energy pulse compression realized very user...
Abstract: This paper presents the development of a Smart Attendance Management System (SAMS) designed to automate and streamline process tracking attendance in educational institutions workplaces. The proposed system utilizes advanced technologies such as facial recognition QR code accurately efficiently monitor attendance. By eliminating need for manual entry, reduces human error, saves time, enhances data accuracy. SAMS also integrates with databases analytics tools provide real-time...
We demonstrate a large energy output and wider spectral bandwidth from Nd:glass-based regenerative amplifiers. The maximum extracted the amplifier is 24 mJ with an overall gain of 3.4 x 10(8). achieved 4.2 nm FWHM when input pulse 7 FWHM. This was made possible by new cavity optimization technique.
A fast double pulse system is designed and developed using the transmission line characteristic of forming to generate two flat top rectangular pulses with extremely short interpulse repetition interval. The helical (HPFL) used longer duration in smaller length. HPFL inner conductor made up 13 turns SS-304 strip, 39.5 mm wide 0.5 thick wounded on 168 delrin cylinder. impedance 22 Ω. 2 at input side are ethylene propylene rubber tape strip. charged 180 kV 4 μs discharges into a matched load...
A low impedance Marx generator was developed, which will serve as a test bed for Vacuum diodes of various electrode materials and geometries. The vacuum be used high power microwave generation. is capable to supply ~3GW pulsed the sufficient enough produce plasma within diode electron beam 10−5Torr required virtual cathode formation diode, when current exceeds space charge limiting current. reflex triode geometry has been designed 10−5 Torr achieved. repetitive operation depends upon...
A Marx generator delivers high power electrical pulse in very short duration and can be configured to compact. This ultrafast coaxial has also been developed without shaping/peaking circuit. The results of 5-stage a rise time 800ps, maximum output voltage 75kv, width(FWHM) 1.5ns, source impedance 63Ω is presented. geometry used throughout the system achieve low value inductance leading fast pulse. generator, load Current Viewing Resistor (CVR) are connected series 50mΩ CVR as diagnostics...
The results of a pulse power generator driving an axial virtual cathode oscillator are being presented in this paper as source high microwave (HPM) radiations. electron beam is also modified to attain the intense X-ray burst. used for these applications common and having 10 ohms its characteristic impedance with 50nS width. peak charging voltage forming line 450kV hence 225kV 22.5kA current delivery capabilities respectively generator. electrical 5GW matched load. supply consists made by...
A compact 180 kV electron beam system is designed for high power microwave generation. The consists of a secondary energy storage device, which can deliver to the load at faster rate than usual primary such as tesla transformers or marx generator. short duration, voltage pulse with fast rise time and good flattop applied vacuum diode made up single turn transformer charges helical forming line transfers its through pressurized spark gap switch. We have used has higher inductance compared...