Effects of the Spatial Extent of Multiple Harmonic Layers

Journal Article · Fri Dec 23 00:00:00 EST 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3664989· OSTI ID:21612500

Burby, J W; Kramer, G J; Phillips, C K; Valeo, E J ^[1]

---

1. Princeton Plasma Physics Laboratory, Princeton University, Princeton, NJ 08543 (United States)

An analytic model for single particle motion in the presence of a wave field and multiple cyclotron harmonics is developed and investigated. The model suggests that even in the absence of Doppler broadening, cyclotron harmonic layers have finite spatial extent. This allows for particles to interact with more than one harmonic layer simultaneously, provided the layers are tightly packed. The latter phenomenon is investigated in the context of the model using symplectic mapping techniques. Then the model behavior is compared with numerical simulations of neutral beam particle trajectories in NSTX using the full-orbit code SPIRAL.

• OSTI ID: 21612500
• Journal Information: AIP Conference Proceedings, Vol. 1406, Issue 1; Conference: 9. topical conference on radio frequency power in plasmas, Newport (United States), 1-3 Jun 2011; Other Information: DOI: 10.1063/1.3664989; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
BEAM INJECTION HEATING
COMPUTERIZED SIMULATION
CYCLOTRON HARMONICS
DOPPLER BROADENING
LAYERS
MAPPING
NSTX DEVICE
NUMERICAL ANALYSIS
PLASMA
PLASMA SIMULATION
S CODES
CLOSED PLASMA DEVICES
COMPUTER CODES
HARMONICS
HEATING
LINE BROADENING
MATHEMATICS
OSCILLATIONS
PLASMA HEATING
SIMULATION
SPHEROMAK DEVICES
THERMONUCLEAR DEVICES
TOKAMAK DEVICES