Identifying drivers of energy resolution variation in multi-KID phonon-mediated detectors
Abstract
Phonon-mediated particle detectors employing Kinetic Inductance Detectors (KIDs) on Silicon substrates have demonstrated both O(10) eV energy resolution and mm position resolution, making them strong candidates for instrumenting next generation rare-event experiments such as in looking for dark matter or in neutrino measurements. Previous work has demonstrated the performance of an 80-KID array on a Si wafer, however current energy resolution measurements show a 25x difference between otherwise identical KIDs on the same wafer - between 5 to 125 eV on energy absorbed by the KID. Here, we use a first principles approach and attempt to identify the drivers behind the resolution variation. In particular, we analyze a subset of 8 KIDs using the unique approach of pulsing neighboring KIDs to generate signals in the target. We tentatively identify differences in quality factor terms as the likely culprit for the observed variation.
Additional Information
Attribution 4.0 International (CC BY 4.0) We acknowledge the support of the following institutions and grants: NASA, NSTGRO 80NSSC20K1223; Department of Energy, DE-SC0011925F; Fermilab, LDRD Subcontract 672112Attached Files
Accepted Version - 2111.02587.pdf
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Additional details
- Eprint ID
- 112389
- Resolver ID
- CaltechAUTHORS:20211213-225003442
- NASA
- 80NSSC20K1223
- Department of Energy (DOE)
- DE-SC0011925F
- Fermi National Accelerator Laboratory
- 672112
- Created
-
2021-12-14Created from EPrint's datestamp field
- Updated
-
2023-06-02Created from EPrint's last_modified field
- Caltech groups
- Astronomy Department