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X-WR-CALDESC:Events for INPA
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DTSTART:20260308T100000
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DTSTART:20261101T090000
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BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260814T120000
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SUMMARY:NO INPA SEMINAR
DESCRIPTION:
URL:https://inpa.lbl.gov/event/no-inpa-seminar-51/
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BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260911T120000
DTEND;TZID=America/Los_Angeles:20260911T130000
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CREATED:20260911T000240Z
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SUMMARY:NO INPA SEMINAR
DESCRIPTION:
URL:https://inpa.lbl.gov/event/no-inpa-seminar-52/
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DTSTART;TZID=America/Los_Angeles:20260918T120000
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SUMMARY:NO INPA SEMINAR
DESCRIPTION:
URL:https://inpa.lbl.gov/event/no-inpa-seminar-53/
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BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260925T120000
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SUMMARY:NO INPA SEMINAR
DESCRIPTION:
URL:https://inpa.lbl.gov/event/inpa-seminar-speaker-tbd-title-tbd-5/
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BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20261002T120000
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SUMMARY:INPA Seminar Speaker: TBD
DESCRIPTION:Date: October 2\, 2026 \nTime: 12:00 pm – 1:00 pm \nLocation: Sessler Conference Room – 50A-5132 [Hybrid and In-Person] \nSpeaker: TBD (     )  \nTitle: TBD \nAbstract:  TBD \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-tbd-14/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20261009T120000
DTEND;TZID=America/Los_Angeles:20261009T130000
DTSTAMP:20260923T160802
CREATED:20260923T191948Z
LAST-MODIFIED:20260923T191956Z
UID:2342-1791547200-1791550800@inpa.lbl.gov
SUMMARY:INPA SEMINAR SPEAKER: Stefan Freidrich (LLNL)-Title: Superconducting Tunnel Junctions and the BeEST Sterile Neutrino Search
DESCRIPTION:Date: October 9\, 2026 \nTime: 12:00 pm – 1:00 pm \nLocation: Sessler Conference Room – 50A-5132 [Hybrid and In-Person] \nSpeaker:  Stefan Freidrich (LLNL) \nTitle: Superconducting Tunnel Junctions and the BeEST Sterile Neutrino Search \nAbstract: Superconducting tunnel junction (STJ) quantum sensors combine high energy resolution of low-temperature detectors with the high speed of athermal devices. We have developed tantalum-based STJ sensors that have an energy resolution of a few eV at energies below 1 keV and can be operated at rates about 1000 events/s. We currently use them at LLNL to search for hypothetical sterile neutrinos in the sub-MeV mass range with precision measurements of the electron capture decay of Be-7 implanted into the STJs. Upon decay\, the neutrino escapes from the STJ detector\, but the recoil of the Li-7 daughter nucleus can be measured very accurately to infer the neutrino mass. Heavy sterile neutrinos would reduce the recoil energy and produce additional peaks in the spectrum at lower energy. Our “Beryllium-7 Electron Capture in Superconducting Tunnel junctions” (“BeEST”) experiment currently provides the most stringent exclusion limits on the existence of heavy neutrinos in the mass range from 100 to 800 keV. The BeEST experiment is currently being scaled to small STJ arrays\, and the search is being expanded to other BSM particles. This talk will introduce the basic physics of STJ quantum sensors and discuss the current status of the BeEST sterile neutrino search. \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-stefan-freidrich-llnl-title-superconducting-tunnel-junctions-and-the-beest-sterile-neutrino-search/
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