An FPGA-Based Bolometer for the MAST-U Super-X Divertor

Lovell, Jack; Naylor, Graham; Field, Anthony; Drewelow, Peter; Sharples, Ray

Abstract

A new resistive bolometer system has been developed for MAST-Upgrade. It will measure radiated power in the new Super-X divertor, with millisecond time resolution, along 16 vertical and 16 horizontal lines of sight. The system uses a Xilinx Zynq-7000 series Field-Programmable Gate Array (FPGA) in the D-TACQ ACQ2106 carrier to perform real time data acquisition and signal processing. The FPGA enables AC-synchronous detection using high performance digital filtering to achieve a high signal-to-noise ratio and will be able to output processed data in real time with millisecond latency. The system has been installed on 8 previously unused channels of the JET vertical bolometer system. Initial results suggest good agreement with data from existing vertical channels but with higher bandwidth and signal-to-noise ratio.

Citation

Lovell, J., Naylor, G., Field, A., Drewelow, P., & Sharples, R. (2016). An FPGA-Based Bolometer for the MAST-U Super-X Divertor. Review of Scientific Instruments, 87(11), Article 11E721. https://doi.org/10.1063/1.4961556

• Journal Article Type: Article
• Acceptance Date: Jul 27, 2016
• Online Publication Date: Aug 29, 2016
• Publication Date: Nov 1, 2016
• Deposit Date: Sep 6, 2016
• Publicly Available Date: Sep 6, 2016
• Journal: Review of Scientific Instruments
• Print ISSN: 0034-6748
• Electronic ISSN: 1089-7623
• Publisher: American Institute of Physics
• Peer Reviewed: Peer Reviewed
• Volume: 87
• Issue: 11
• Article Number: 11E721
• DOI: https://doi.org/10.1063/1.4961556
• Public URL: https://durham-repository.worktribe.com/output/1398068