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RAGHWENDRA KUMAR
RAGHWENDRA KUMAR
Verified email at barc.gov.in
Title
Cited by
Cited by
Year
Generalization of the Child–Langmuir law for nonzero injection velocities in a planar diode
RR Puri, D Biswas, R Kumar
Physics of Plasmas 11 (3), 1178-1186, 2004
532004
Modeling field emitter arrays using nonlinear line charge distribution
D Biswas, G Singh, R Kumar
Journal of Applied Physics 120 (12), 124307, 2016
342016
Variation of field enhancement factor near the emitter tip
D Biswas, G Singh, SG Sarkar, R Kumar
Ultramicroscopy 185, 1-4, 2018
312018
Efficiency enhancement of the axial VIRCATOR
D Biswas, R Kumar
IEEE transactions on plasma science 35 (2), 369-378, 2007
242007
Relation between space charge limited current and power loss in open drift tubes
D Biswas, R Kumar
Physics of plasmas 13 (7), 073101, 2006
192006
Anisotropic energy transfers in quasi-static magnetohydrodynamic turbulence
KS Reddy, R Kumar, MK Verma
Physics of Plasmas 21 (10), 102310, 2014
182014
Validation of current formula for a metallic nanotipped field emitter
D Biswas, R Kumar
Journal of Vacuum Science & Technology B, Nanotechnology and …, 2019
172019
Power loss in open cavity diodes and a modified Child-Langmuir law
D Biswas, R Kumar, RR Puri
Physics of plasmas 12 (9), 093102, 2005
172005
Microwave power enhancement in the simulation of a resonant coaxial vircator
D Biswas, R Kumar
IEEE transactions on plasma science 38 (6), 1313-1317, 2010
142010
Enhanced space charge limited current for curved electron emitters
G Singh, R Kumar, D Biswas
Physics of Plasmas 27 (10), 104501, 2020
122020
Predicting space-charge affected field emission current from curved tips
D Biswas, R Kumar, G Singh
Journal of Applied Physics 130 (18), 185302, 2021
92021
The Child-Langmuir law in the quantum domain
D Biswas, R Kumar
EPL (Europhysics Letters) 102 (5), 58002, 2013
92013
On the relation between the frequency of oscillation of a virtual cathode and injected current in one-dimensional grounded drift space
R Kumar, RR Puri, D Biswas
Physics of Plasmas 11 (1), 324-327, 2004
92004
Absence of saturation for finite injected currents in axially symmetric cavity diode
D Biswas, R Kumar, RR Puri
Physics of Plasmas 10 (11), 4521-4529, 2003
92003
Approximate universality in the electric field variation on a field-emitter tip in the presence of space charge
R Kumar, G Singh, D Biswas
Physics of Plasmas 28 (9), 093110, 2021
72021
Sensitive dependence of efficiency on cathode-wall position in a coaxial vircator—Numerical studies
D Biswas, R Kumar
IEEE Transactions on Plasma Science 39 (7), 1573-1576, 2011
72011
Simulating multi-scale gated field emitters—A hybrid approach
SG Sarkar, R Kumar, G Singh, D Biswas
Physics of Plasmas 28 (1), 013111, 2021
62021
Boundary conditions for the solution of the three-dimensional Poisson equation in open metallic enclosures
D Biswas, G Singh, R Kumar
Physics of Plasmas 22 (9), 093119, 2015
52015
On the saturation in the average transmitted current in two-dimensional planar diodes
R Kumar, D Biswas
Physics of Plasmas 16 (9), 093114, 2009
42009
The limiting current in a one-dimensional situation: Transition from a space charge limited to magnetically limited flow
R Kumar, D Biswas
Physics of Plasmas 15 (2), 023101, 2008
42008
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