G. McArdle M. Kochan C. Vincent L. Swaidani H. Anand D. Eldon W. Wehner G. Derks S. Elmore B. Kool K. Verhaegh R. Sarwar B. Parry R. Scannell J. Harrison A. Thornton A. Kirk G. Cunningham the MAST Upgrade Team
The real time plasma control system for the MAST Upgrade tokamak has been substantially redeveloped from its original MAST incarnation with a new architecture that aims to manage complexity whilst maximising flexibility. It provides modular layers of functionality and supports the implementation of virtual actuators to aggregate, arbitrate and rout…
PreprintP. Ollus S. Allan J.R. Harrison A. Jackson T. Kurki-Suonio K.G. McClements C.A. Michael D. Moulton B.S. Patel M. Robson A. Snicker J. Varje C. Vincent the MAST-U team the EUROfusion WPTE team
Predictions of the impact of charge-exchange (CX) reactions on beam ions in the MAST Upgrade spherical tokamak have been compared to measurements carried out with a fission chamber (neutron fluxes) and a Fast Ion Deuterium-Alpha (FIDA) diagnostic. A simple model was developed to reconstruct the outer-midplane neutral density based on Thomson sca…
PreprintC. Vincent S. Allan G. Naylor R. Stephen S. Bray A. Thornton A. Kirk
Neutron flux measurements are important in fusion devices for both safety requirements and physics studies. A newsystem has been built for the Mega Amp Spherical Tokamak Upgrade (MAST Upgrade) that provides neutron count,DC and Campbell mode measurements for a 1μsperiod at 1 MHz. The acquisition system uses a Red Pitaya board tosample current from…
Preprint PublishedW. McCarthy T. Golfinopoulos K.B. Woller C. Vincent A. Kuang B. Labombard
For the first time, a digital Mirror Langmuir probe (MLP) has successfully
Preprint PublishedC. Vincent W. McCarthy T. Golfinopoulos B. LaBombard R. Sharples J. Lovell G. Naylor S. Hall J. Harrison A.Q. Kuang
High bandwidth, high spatial resolution measurements of electron temperature, density and plasma potential are valuable for resolving turbulence in the boundary plasma of tokamaks. While conventional Langmuir probes can provide such measurements either their temporal or spatial resolution is limited: the former by the sweep rate necessary for obtai…
Preprint Published