WMAP WMAP

from Perlmutter, Phys. Today (units of critical density)

Tytler & Burles

3 Kelvin cosmic microwave background

supernovae

Matter density

Ener

gy d

ensit

y

Baryon acoustic oscillations

SDSS-III / BOSS

First light: 2019.

Lab tour 4-5 pm

dark matter halo

WIMP1016 WIMPs/year

detector

10-16 light years

Cross section: WIMP scatters once in a light year of lead

Rate ~ few events / year1 light year

Dark matter searches

300 times more sensitive than LUX

In construction. Data: 2020

Unique development platform with significant student involvement

Lab tour 4-5 pm

SQUID Modulation CurveTower Assembly Stand

SQUID

HEMT

Detector

MC

CP

ST

4K

CDMS Tower Test Stand in Cleanroom

3He Fridge

vacuumpump

scopespectrum analyzer

computer controlled system

temperaturepressure readout

CDMS Towerin 3He Fridge

SQUID

HEMT

detector

Constructed and operated at SLAC Monitors the sky >20 MeV since 2008