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.
The committee members are:
The seminar schedule for the Institute for Nuclear and Particle Astrophysics (INPA) is tentative and becomes final a few days before the Friday talk.
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.
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VIRTUAL INPA SEMINAR | Tucker Elleflot (LBNL)
January 22, 2021 @ 12:00 pm - 1:00 pm
Speaker: Tucker Elleflot (Lawrence Berkeley National Laboratory)
Title: Multiplexed Readout of Transition Edge Sensors for CMB Polarization Experiments
Abstract:
The polarization of the Cosmic Microwave Background (CMB) provides a valuable means to study the very early universe and high energy physics beyond the standard model. Remarkable experimental progress has been made on this front in the past decade. Modern experiments employ as many as O(10,000) Transition Edge Sensor (TES) bolometers and highly multiplexed readout systems, all operating below the photon noise level. My research has focused on the development of the sensors and multiplexing systems for CMB experiments. I will first describe my contributions to TES characterization for the POLARBEAR-2 experiment, emphasizing a specific systematic effect created by the multiplexing system. Next I will discuss my current research: taking the lessons learned from POLARBEAR-2 to develop an even higher performance multiplexing system for the next generation of CMB experiments such as CMB-S4 and LiteBIRD. I will end by noting potential applications of this work to dark matter direct detection experiments using TES calorimeters.
Join Zoom Meeting
https://lbnl.zoom.us/j/92456461157?pwd=dDM1YzBkVlIzS0pJTS9QUVFSK3pzQT09
Meeting ID: 924 5646 1157
Passcode: 637320
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.