D
D. P. Chakravarthy
Researcher at Bhabha Atomic Research Centre
Publications - 53
Citations - 510
D. P. Chakravarthy is an academic researcher from Bhabha Atomic Research Centre. The author has contributed to research in topics: Cathode & Perveance. The author has an hindex of 12, co-authored 53 publications receiving 470 citations.
Papers
More filters
Journal ArticleDOI
Plasma expansion and fast gap closure in a high power electron beam diode
Amitava Roy,R. Menon,Swarupa Mitra,Senthil Kumar,Vishnu L. Sharma,K. V. Nagesh,K. C. Mittal,D. P. Chakravarthy +7 more
TL;DR: In this paper, the effect of the accelerating gap, diode voltage, and anode-cathode materials on the electrode plasma expansion was investigated in a planar diode configuration.
Journal ArticleDOI
Characterization and analysis of a pulse power system based on Marx generator and Blumlein
D. Durga Praveen Kumar,Swarupa Mitra,K. Senthil,Archana Sharma,K. V. Nagesh,S. K. Singh,J. Mondal,Amitava Roy,D. P. Chakravarthy +8 more
TL;DR: Equivalent electrical circuits during the charging and discharging of the Blumlein are constructed from the characterized parameters of the system, which can be used in the analysis of prepulse voltage and droop in the flat top of the main pulse in the pulse power systems based on Marx generator and Blum Klein.
Journal ArticleDOI
High power microwave generation from coaxial virtual cathode oscillator using graphite and velvet cathodes
Rakhee Menon,Amitava Roy,S. K. Singh,Swarupa Mitra,Vishnu L. Sharma,Senthil Kumar,Archana Sharma,K. V. Nagesh,K. C. Mittal,D. P. Chakravarthy +9 more
TL;DR: In this paper, high power microwave (HPM) generation studies were carried out in KALI-5000 pulse power system with graphite and polymer velvet cathode at various diode voltage, current, and accelerating gaps.
Journal ArticleDOI
Development and Characterization of Repetitive 1-kJ Marx-Generator-Driven Reflex Triode System for High-Power Microwave Generation
Archana Sharma,Senthil Kumar,S. Mitra,Vishnu Sharma,Ankur Patel,Amitava Roy,Rakhee Menon,K. V. Nagesh,D. P. Chakravarthy +8 more
TL;DR: In this paper, the authors presented the design and development of a repetitive Marx generator rated at 1 kJ, 300 kV, 12 kA, and 10 Hz and which is suitable to drive the load directly.
Journal ArticleDOI
Emission properties of explosive field emission cathodes
TL;DR: In this article, the results of the explosive field emission cathode plasma expansion velocity and the initial emission area in the planar diode configuration with cathodes made of graphite, stainless steel, polymer velvet, carbon coated, and carbon fiber (needle type) cathodes are presented.