Performance of a Kinetic Inductance Phonon-Mediated Detector at the NEXUS Cryogenic Facility
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| Format: | Preprint |
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2024
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| author | Temples, Dylan J Wen, Osmond Ramanathan, Karthik Aralis, Taylor Chang, Yen-Yung Golwala, Sunil Hsu, Lauren Bathurst, Corey Baxter, Daniel Bowring, Daniel Chen, Ran Figueroa-Feliciano, Enectali Hollister, Matthew James, Christopher Kennard, Kyle Kurinsky, Noah Lewis, Samantha Lukens, Patrick Novati, Valentina Ren, Runze Schmidt, Benjamin |
| author_facet | Temples, Dylan J Wen, Osmond Ramanathan, Karthik Aralis, Taylor Chang, Yen-Yung Golwala, Sunil Hsu, Lauren Bathurst, Corey Baxter, Daniel Bowring, Daniel Chen, Ran Figueroa-Feliciano, Enectali Hollister, Matthew James, Christopher Kennard, Kyle Kurinsky, Noah Lewis, Samantha Lukens, Patrick Novati, Valentina Ren, Runze Schmidt, Benjamin |
| contents | Microcalorimeters that leverage microwave kinetic inductance detectors to read out phonon signals in the particle-absorbing target, referred to as kinetic inductance phonon-mediated (KIPM) detectors, offer an attractive detector architecture to probe dark matter (DM) down to the fermionic thermal relic mass limit. A prototype KIPM detector featuring a single aluminum resonator patterned onto a 1-gram silicon substrate was operated in the NEXUS low-background facility at Fermilab for characterization and evaluation of this detector architecture's efficacy for a dark matter search. An energy calibration was performed by exposing the bare substrate to a pulsed source of 470 nm photons, resulting in a baseline resolution on the energy absorbed by the phonon sensor of $2.1\pm0.2$ eV, a factor of two better than the current state-of-the-art, enabled by millisecond-scale quasiparticle lifetimes. However, due to the sub-percent phonon collection efficiency, the resolution on energy deposited in the substrate is limited to $σ_E=318 \pm 28$ eV. We further model the signal pulse shape as a function of device temperature to extract quasiparticle lifetimes, as well as the observed noise spectra, both of which impact the baseline resolution of the sensor. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2402_04473 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Performance of a Kinetic Inductance Phonon-Mediated Detector at the NEXUS Cryogenic Facility Temples, Dylan J Wen, Osmond Ramanathan, Karthik Aralis, Taylor Chang, Yen-Yung Golwala, Sunil Hsu, Lauren Bathurst, Corey Baxter, Daniel Bowring, Daniel Chen, Ran Figueroa-Feliciano, Enectali Hollister, Matthew James, Christopher Kennard, Kyle Kurinsky, Noah Lewis, Samantha Lukens, Patrick Novati, Valentina Ren, Runze Schmidt, Benjamin Instrumentation and Detectors High Energy Physics - Experiment Microcalorimeters that leverage microwave kinetic inductance detectors to read out phonon signals in the particle-absorbing target, referred to as kinetic inductance phonon-mediated (KIPM) detectors, offer an attractive detector architecture to probe dark matter (DM) down to the fermionic thermal relic mass limit. A prototype KIPM detector featuring a single aluminum resonator patterned onto a 1-gram silicon substrate was operated in the NEXUS low-background facility at Fermilab for characterization and evaluation of this detector architecture's efficacy for a dark matter search. An energy calibration was performed by exposing the bare substrate to a pulsed source of 470 nm photons, resulting in a baseline resolution on the energy absorbed by the phonon sensor of $2.1\pm0.2$ eV, a factor of two better than the current state-of-the-art, enabled by millisecond-scale quasiparticle lifetimes. However, due to the sub-percent phonon collection efficiency, the resolution on energy deposited in the substrate is limited to $σ_E=318 \pm 28$ eV. We further model the signal pulse shape as a function of device temperature to extract quasiparticle lifetimes, as well as the observed noise spectra, both of which impact the baseline resolution of the sensor. |
| title | Performance of a Kinetic Inductance Phonon-Mediated Detector at the NEXUS Cryogenic Facility |
| topic | Instrumentation and Detectors High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2402.04473 |