BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//LBNL Physics Division Research Progress Meetings - ECPv6.8.3//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:LBNL Physics Division Research Progress Meetings
X-ORIGINAL-URL:https://rpm.physics.lbl.gov
X-WR-CALDESC:Events for LBNL Physics Division Research Progress Meetings
REFRESH-INTERVAL;VALUE=DURATION:PT1H
X-Robots-Tag:noindex
X-PUBLISHED-TTL:PT1H
BEGIN:VTIMEZONE
TZID:UTC
BEGIN:STANDARD
TZOFFSETFROM:+0000
TZOFFSETTO:+0000
TZNAME:UTC
DTSTART:20190101T000000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=UTC:20191217T160000
DTEND;TZID=UTC:20191217T170000
DTSTAMP:20260417T071903
CREATED:20191022T020055Z
LAST-MODIFIED:20191210T201048Z
UID:1270-1576598400-1576602000@rpm.physics.lbl.gov
SUMMARY:Sumit Dahal (Johns Hopkins U) "The Cosmology Large Angular Scale Surveyor: Detector Design and Performance"
DESCRIPTION:Abstract: \nThe Cosmology Large Angular Scale Surveyor (CLASS) aims to characterize the primordial gravitational waves at the level of tensor-to-scalar ratio of 0.01\, and make a cosmic-variance-limited measurement of the optical depth to reionization. CLASS is an array of four telescopes that surveys 70% of the microwave sky from the Atacama Desert at 40\, 90\, 150\, and 220 GHz frequency bands. A unique combination of large sky coverage\, rapid front-end polarization modulator\, broad frequency coverage\, and background-limited detectors enables CLASS to characterize the B-mode and E-mode power spectra on both the reionization and recombination scales. The detector arrays for all four CLASS telescopes contain smooth-walled feedhorns that couple to transition-edge sensor bolometers through planar orthomode transducers fabricated on mono-crystalline silicon. In this talk\, I will give an overview of the design and performance of the CLASS detectors and provide an update on the current status of CLASS telescopes.
URL:https://rpm.physics.lbl.gov/event/reserved-78/
LOCATION:HYBRID 50A-5132 (Sessler Conference Room)\, https://lbnl.zoom.us/j/91782268585\, 50A-5132
END:VEVENT
END:VCALENDAR