Application of Flex-QA Arrays in HTS Magnet Testing

Stoyan Stoynev; Vadim V. Kashikhin; Sean Cohan; Joe DiMarco; Oliver Kiemschies; Steve Krave; Nghia Mai; Umesh Sambangi; Venkat Selvamanickam

arXiv · 2502.03176

Application of Flex-QA Arrays in HTS Magnet Testing

Stoyan Stoynev·Vadim V. Kashikhin·Sean Cohan·Joe DiMarco·Oliver Kiemschies·Steve Krave·Nghia Mai·Umesh Sambangi·Venkat Selvamanickam

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Abstract

Flexible PCB quench antennas have been very useful in providing high-quality high-resolution data in low temperature superconducting magnet tests. Similar multi-sensor arrays have been employed recently to cover a high temperature superconductor magnet tested at FNAL. In the present work, data taking conditions and magnet features to support the analysis framework are discussed. Then observations made during complete magnet powering cycles are described and analysis of quench antenna data are presented. Based on results, improvements to instrumentation and data taking are debated. Views on the future of flexible quench antenna sensors for HTS magnet diagnostics and operational support are shared.

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Stoyan Stoynev, Vadim V. Kashikhin, Sean Cohan, Joe DiMarco, Oliver Kiemschies, Steve Krave, Nghia Mai, Umesh Sambangi, Venkat Selvamanickam. 2025-02-05. Application of Flex-QA Arrays in HTS Magnet Testing. https://arxiv.org/abs/2502.03176

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