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SUMMARY:INPA Seminar Speaker: Arran Phipps(CSU East Bay)-Title:SPLENDOR: Searching for Light Dark Matter with Narrow-Gap Semiconductors
DESCRIPTION:Date: November 14\, 2025 \nTime: 12:00 pm – 1:00 pm \nLocation: Sessler Conference Room – 50A-5132 [Hybrid and In-Person] \nSpeaker: Arran Phipps (CSU East Bay) \nTitle: SPLENDOR: Searching for Light Dark Matter with Narrow-Gap Semiconductors \nAbstract: SPLENDOR is a cross-disciplinary collaboration developing novel semiconductor detectors to search for low-mass\, particle-like dark matter. Our approach combines low-bandgap semiconductor targets with ultra-low-noise cryogenic charge amplifiers to probe energy depositions below 1 eV. We have developed a modular detector platform optimized for rapid integration of new materials\, featuring a two-stage cryogenic HEMT-based amplifier with a demonstrated charge resolution of 19 ± 4 electrons. This talk will review the motivation for sub-GeV dark matter detection with low-temperature semiconductors\, describe SPLENDOR’s experimental design and calibration efforts\, and discuss future directions in device development and charge amplification. \nJoin Zoom Meeting\nhttps://lbnl.zoom.us/j/95016696011?pwd=Tk1XOW1Xd3RYRnlsc2tEYmRWZlVVZz09 \nMeeting ID: 950 1669 6011 \nPasscode: 247722
URL:https://inpa.lbl.gov/event/inpa-seminar-speaker-arran-phippscsu-east-bay-titletbd/
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