Design and Modeling of Multistage Depressed Collectors by Using 3D Conformal Finite-difference Time-domain Particle-in-cell Simulations
- Title
- Design and Modeling of Multistage Depressed Collectors by Using 3D Conformal Finite-difference Time-domain Particle-in-cell Simulations
- Author
- Ming-Chieh Lin
- Keywords
- Conformal finite-difference time-domain; Feedback algorithms; Multistage depressed collector; Particle-in-cell
- Issue Date
- 2012-03
- Publisher
- Korean Physical SOC
- Citation
- Journal of the Korean Physical Society, 2012, 60(5), P.731-738
- Abstract
- The feasibility of designing and modeling a multistage depressed collector (MDC) by using 3D conformal finite-difference time-domain (CFDTD) particle-in-cell (PIC) simulations as implemented in 3D PIC code, VORPAL has been studied. A simple circuit model employing feedback mechanisms has been implemented to provide stable time-dependent voltages for each stage of the depressed collector, and an arbitrary space-time dependent spent-beam distribution is given in our timedomain simulations. We demonstrate the design of a five-stage depressed collector recovering a triangular-like spent-beam distribution imported from a large signal simulation, achieving an energy recovery efficiency of 75%. The MDC after optimization can be integrated into the limited space of an S-band traveling wave tube for a compact microwave power module (MPM).
- URI
- https://link.springer.com/article/10.3938%2Fjkps.60.731http://hdl.handle.net/20.500.11754/67747
- ISSN
- 0374-4884
- DOI
- 10.3938/jkps.60.731
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > ELECTRICAL AND BIOMEDICAL ENGINEERING(전기·생체공학부) > Articles
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