Surface impedance measurements in superconductors in dc magnetic fields: challenges and relevance to particle physics experiments

Fuente: arXiv
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Main Authors: Alimenti, Andrea, Pompeo, Nicola, Torokhtii, Kostiantyn, Silva, Enrico
Format: Preprint
Published: 2025
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author Alimenti, Andrea
Pompeo, Nicola
Torokhtii, Kostiantyn
Silva, Enrico
author_facet Alimenti, Andrea
Pompeo, Nicola
Torokhtii, Kostiantyn
Silva, Enrico
contents Particle physics and radio-frequency (RF) superconductivity have driven each other on since the 1970s. The unique properties of superconductors (SC) have been the enabling keys for the realization of accelerators with always increased performances thanks to the realization of all-superconducting cavities. The use of increasingly pure superconducting coatings for accelerating cavities, with lower and lower RF losses, determined such high-quality factors that the need to operate at low temperatures (below the superconducting transition temperature Tc) was well paid for. Recently, with respect to the path followed by the high frequency superconductivity, a new field opened since SCs are being considered for GHz operation in high dc magnetic fields, and measurements (and optimization) of totally different quantities are needed. The possibility of successfully using SCs in high magnetic fields for these purposes is far from obvious and it depends on the outcome of accurate measurements of usually overlooked quantities.
format Preprint
id arxiv_https___arxiv_org_abs_2501_10804
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Surface impedance measurements in superconductors in dc magnetic fields: challenges and relevance to particle physics experiments
Alimenti, Andrea
Pompeo, Nicola
Torokhtii, Kostiantyn
Silva, Enrico
Superconductivity
High Energy Physics - Experiment
Particle physics and radio-frequency (RF) superconductivity have driven each other on since the 1970s. The unique properties of superconductors (SC) have been the enabling keys for the realization of accelerators with always increased performances thanks to the realization of all-superconducting cavities. The use of increasingly pure superconducting coatings for accelerating cavities, with lower and lower RF losses, determined such high-quality factors that the need to operate at low temperatures (below the superconducting transition temperature Tc) was well paid for. Recently, with respect to the path followed by the high frequency superconductivity, a new field opened since SCs are being considered for GHz operation in high dc magnetic fields, and measurements (and optimization) of totally different quantities are needed. The possibility of successfully using SCs in high magnetic fields for these purposes is far from obvious and it depends on the outcome of accurate measurements of usually overlooked quantities.
title Surface impedance measurements in superconductors in dc magnetic fields: challenges and relevance to particle physics experiments
topic Superconductivity
High Energy Physics - Experiment
url https://arxiv.org/abs/2501.10804