Seismometry of radiation-induced quasiparticle bursts in superconducting devices
Francesco Valenti, Anil Murani, Patrick Paluch, Robert Gartmann, Lukas Scheller, Richard Weller, Robert Kruk, Thomas Reisinger, Luis Ardila-Perez, Ioan M. Pop
DOI 10.1103/xmyw-yc9h · Physical Review B
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Abstract
We perform nanosecond-resolution multiplexed readout on six same-chip superconducting microwave resonators. This allows us to pinpoint the position of ionizing radiation impacts on the chip by measuring the differential time-of-flight of the generated phonons, inducing correlated errors in the device, thereby implementing an on-chip seismic array. We correlate the phase response of each resonator—a proxy for the absorbed energy—to the distance from the impact point to uncover a millimetric characteristic length for the phonon-mediated radiation poisoning.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Al Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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