Bulletin of ANPA

Abstract submitted to ANPA Conference July 14–16, 2023

Volume 5, Number 1

Condensed Matter Physics and Material Science

Abstract ID: ANPA2023-N00048

Abstract:

ANPA2023-N00048: "Investigation of trapped vortex induced hot-spot in single cell niobium superconducting radio frequency cavity"

Authors:

• Bashu Dev Khanal; Old Dominion University

• Gianluigi Ciovati;

• Pashupati Dhakal;

A significant source of residual losses in superconducting radiofrequency cavities is the magnetic field trapped during the cooldown due to the incomplete Meissner effect. In this contribution, we present the results of combined magnetic and temperature mapping measurements at 2 K on a single cell niobium cavity resonating at 3.0 GHz. A local magnetic field was produced at different locations near the cavity surface during cooldown, resulting in hot-spots and allowing estimating the contribution to radiofrequency losses due to trapped vortices.

To cite this abstract, use the following reference: https://anpaglobal.org/conference/2023/ANPA2023-N00048