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Aparajita Mazumdar20/10/2026, 14:001RDC 7 Low-Background DetectorsPresentation
High-purity Germanium (HPGe) detectors have a long history of use in the search for the hypothesized neutrinoless double beta decay (0νββ) of $^{76}$Ge. LEGEND is a phased search for 0νββ using HPGe detectors enriched in the double beta decay isotope $^{76}$Ge, with the goal of an ultimate discovery sensitivity to a 0νββ half-life beyond 10$^{28}$ years. The first phase, LEGEND-200, located...
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Wouter Van De Pontseele (Colorado School of Mines)20/10/2026, 14:20RDC 7 Low-Background DetectorsPresentation
Coherent elastic neutrino–nucleus scattering (CEνNS) provides a low-energy probe of physics beyond the Standard Model, but detecting the sub-keV nuclear recoils induced by reactor antineutrinos demands cryogenic detectors with excellent energy resolution and robust particle identification. The RICOCHET experiment, located 8.8 m from the core of the Institut Laue–Langevin research reactor in...
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Pratyush Kumar Patel (Northwestern University)20/10/2026, 14:401RDC 7 Low-Background DetectorsPresentation
We present ongoing progress in developing a sub-keV nuclear recoil calibration facility at NEXUS (located underground in MINOS at Fermilab) for future calibration of cryogenic detectors in rare-event searches. Initially developed as a part of SuperCDMS operations, project development is centered on a segmented backing array and a 2.5-MeV Deuterium-Deuterium (DD) neutron generator. The backing...
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Isabella Foti (Northwestern University)20/10/2026, 15:002RDC 7 Low-Background DetectorsPresentation
I will present the design, construction, and commissioning of a highly segmented neutron backing array developed for low-energy nuclear recoil calibration measurements as a contingent of SuperCDMS operations. The array consists of plastic scintillator (EJ-200) detectors instrumented with silicon photomultiplier (SiPM) readout arranged in a highly segmented geometry to provide precise angular...
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Prof. Enectali Figueroa-Feliciano (Northwestern University)20/10/2026, 15:201RDC 7 Low-Background DetectorsPresentation
I will present progress on the design of the HOdoscopic Neutrino EnergY CryOgenic Multiplexed Bolometer (HONEYCOMB), a detector concept for instrumenting a highly segmented low-threshold detector for dark matter and neutrino physics. The detector aims to achieve eV-scale energy thresholds, few kg mass, and attain background rejection through its highly segmented design. This geometry can be...
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Prof. Alvaro Chavarria (University of Washington)20/10/2026, 15:40RDC 7 Low-Background DetectorsPresentation
Skipper CCDs have emerged as the leading technology for the direct detection of sub-GeV dark matter, combining single-electron sensitivity with low backgrounds. DAMIC-M represents the next major step in scaling this technology, with an array of 104 skipper CCDs comprising nearly one gigapixel of imaging area. Building an array at this scale presented a new challenge for skipper-CCD...
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Miqueas Gamero (Fermilab)20/10/2026, 16:30RDC 7 Low-Background DetectorsPresentation
Spurious charge (SC), generated by the clocking of the gate phases, is a dominant noise source in single-electron-resolution CCDs and a critical parameter for the next generation of low-noise astronomical detectors. We present a systematic experimental study of SC in the multiple-amplifier sensing CCD (MAS-CCD), characterizing its dependence on the horizontal-clock voltages, the pixel readout...
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Dr Natalie Harrison (University of Virginia)20/10/2026, 16:47RDC 7 Low-Background DetectorsPresentation
The Mu2e Cosmic Ray Veto (CRV) suppresses cosmic-ray backgrounds that could mimic the experiment’s rare conversion-electron signal. It uses four-layer scintillator modules with SiPM readout to achieve the high veto efficiency required for Mu2e. The CRV is now progressing toward sustained cosmic-ray operation and is being operated as a complete system to exercise calibration, reconstruction,...
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Ansh Desai (University of Oregon (US))20/10/2026, 17:07RDC 7 Low-Background DetectorsPresentation
The Skipper Charge Coupled Device (CCD), used by the SENSEI and DAMIC-M experiments, is currently the leading technology for detecting sub-GeV dark matter due to its single-electron sensitivity and low background rate. One of the main efforts of the SENSEI experiment has been to work on reducing single-electron backgrounds. One possible source of this background could arise from lattice...
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Christopher Jackson20/10/2026, 17:271RDC 7 Low-Background DetectorsPresentation
Radon is a major background concern for many low-background experiments, and emanation assays are essential for screening detector materials and characterizing radon backgrounds. In upcoming neutrino and dark matter experiments using cryogenic liquids, temperature and surface properties can affect radon levels. This talk will present a radon-emanation measurement system that uses...
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Samuel Watkins (Pacific Northwest National Laboratory, USA)20/10/2026, 17:471RDC 8 Quantum & Superconducting SensorsPresentation
Correlated error bursts causing decoherence in superconducting qubits have been detrimental to quantum error correction schemes, with recent work by Google showing approximately once per hour correlated bursts in their qubits. Over the past decade, it has been shown that ionizing radiation contributes to this effect, with cosmic rays being commonly identified. However, with advent of...
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Liam Sherman20/10/2026, 18:07RDC 7 Low-Background DetectorsPresentation
Future liquid xenon (LXe) low background experiments such as those searching for dark matter or neutrinoless double beta decay will have to grapple with Rn-222 and its decay chain products as a significant background. Promising results in gas phase chromatography measurements indicated that liquid phase chromatography using synthetic charcoal could be a viable strategy for Rn removal from LXe....
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