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Ben Chapman

Position: PhD Student

Supervisors: Prof. Richard Dendy and Prof. Sandra Chapman

Topic: Kinetic simulations of Ion Cyclotron Emission (ICE) in plasmas

Funding: EPSRC

Background: Theoretical Physics (MPhys), University of York, 2015

Project outline:

My research focuses on the collective radiative instability Ion Cyclotron Emission (ICE). The excitation
mechanism for ICE is the magnetoacoustic cyclotron instability, which is a potential diagnostic for
alpha particle confinement in ITER. Using large scale high performance computing facilities, I employ
numerical simulations of the nonlinear kinetic physics associated with ICE using the Warwick developed
particle-in-cell (PIC) code EPOCH in collaboration with researchers from the UK, Japan, and Korea.

My GitHub page includes tutorials for various programming languages. So far there are tutorials for: Fortran, C++, BASH, Python, MPI, OpenMP. There's also other miscellaneous sutff.

https://github.com/BenChapman31

Publications

[1] B. Chapman, R.O. Dendy, S.C. Chapman, K.G. McClements, G.S. Yun, S.G. Thatipamula and M.H. Kim. Nonlinear wave interactions generate high-harmonic cyclotron emission from fusion-born protons during a KSTAR ELM crash. Nuclear Fusion, 58 096027, 2018, http://stacks.iop.org/0029-5515/58/i=9/a=096027

[2] R. Ochoukov, V. Bobkov, B. Chapman, R. Dendy, M. Dunne, H. Faugel, M. García-Muñoz, B. Geiger, P. Hennequin, K. G. McClements, D. Moseev, S. Nielsen, J. Rasmussen, P. Schneider, M. Weiland, J.-M. Noterdaeme, ASDEX Upgrade Team, and EUROfusion MST1 Team. Observations of core ion cyclotron emission on ASDEX Upgrade tokamak. Review of Scientific Instruments, 89 10J101, 2018, https://doi.org/10.1063/1.5035180

[3] K.G. McClements, A. Brisset, B. Chapman, S.C. Chapman, R.O. Dendy, P. Jacquet, V.G. Kiptily, M.
Mantsinen, B.C.G. Reman, and JET Contributors. Observations and modelling of ion cyclotron emission observed in JET plasmas using a sub-harmonic arc detection system during ion cyclotron resonance heating, Nuclear Fusion, 58 096020, 2018, http://stacks.iop.org/0029-5515/58/i=9/a=096020

[4] B. Chapman, R.O. Dendy, K.G. McClements, S.C. Chapman, K.G. McClements, G.S. Yun, S.G. Thatipamula and M.H. Kim. Sub-microsecond temporal evolution of edge density during edge localized modes in KSTAR tokamak plasmas inferred from ion cyclotron emission. Nuclear Fusion, 57 124004, 2017, http://stacks.iop.org/0029-5515/57/i=12/a=124004

me

Contact details

Email: B dot Chapman at warwick dot ac dot uk

Office: PS1.07

ORCiD: https://orcid.org/0000-0001-9879-2285

ResearchGate: https://www.research
gate.net/profile/Benjamin_Chapman
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Linkedin: https://www.linkedin.com/in
/benjamin-chapman-11939493/