Institute for Nuclear and Particle Astrophysics (INPA) at LBNL
The INPA Seminar weekly talks are on Fridays, starting at 12:00 pm, unless informed otherwise. The seminar talk starts with a brief presentation of the weekly scientific news. Typically, the talks conclude by 1:00 pm. The seminars are held in the Sessler Conference Room, located in Bldg. 50A- 5132.
Please send all suggestions for future INPA talks and speakers to the INPA Committee.
To be added to the INPA News Mailing List, please contact Erica Hall.
INPA Talks are archived here.
The INPA Committee currently consists of:
2025-26
Daniel Kodroff
Krystal Alfonso
Edmond Chaussidon
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INPA Seminar Speaker: Arran Phipps(CSU East Bay)-Title:SPLENDOR: Searching for Light Dark Matter with Narrow-Gap Semiconductors
November 14 @ 12:00 pm - 1:00 pm
Date: November 14, 2025
Time: 12:00 pm – 1:00 pm
Location: Sessler Conference Room – 50A-5132 [Hybrid and In-Person]
Speaker: Arran Phipps (CSU East Bay)
Title: SPLENDOR: Searching for Light Dark Matter with Narrow-Gap Semiconductors
Abstract: 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.
Join Zoom Meeting
https://lbnl.zoom.us/j/95016696011?pwd=Tk1XOW1Xd3RYRnlsc2tEYmRWZlVVZz09
Meeting ID: 950 1669 6011
Passcode: 247722
INPA guests from campus can now come to the lab early on Fridays. The INPA Common Room (50-5026) is reserved for our guests from 10:00 a.m. to 12:00 noon and from 1 p.m. to 5 p.m. Note that the seminars are now held in 50A-5132 to accommodate a more significant number of attendees.
CPTea Series (also known as INPA Tea Series)
The Physics Division CPTea Series invites you to an In-Person Tea Series 1st Friday of every month at 3:30 pm INPA Conference Room 50-5026.
Everyone is welcome to attend the open forum. Tea and light refreshments will be served.
INPA Common Room (50-5026)
Fridays
3:30 pm
Access to the Lab
For a shuttle pass, please email Erica Hall. The pass is only valid for the day of the seminar.