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Cosmic Frontier Experiment StatusAugust 25, 2014
Experiment Location Status Start of operations
Nominal end of operations
Physics
SuperCDMS Soudan Operating Mar 2012 Mar 2015? Dark Matter
COUPP/PICO 2L SNOLAB Operating Dec 2013 Dec 2014? Dark Matter
COUPP/PICO 60 SNOLAB Operating June 2013 Dec 2015? Dark Matter
Darkside 50 LNGS (Gran Sasso)
Operating/Calibrating
Jan 2014 Dec 2016? Dark Matter
DAMIC SNOLAB Operating Dec 2012 Dec 2014 Dark Matter
Dark Energy Survey
CTIO, Chile Operating Sep 2013 Feb 2018 Dark Energy
Pierre Auger Argentina Operating 2008 2015 (for FNAL)?
High Energy Cosmic Rays
Holometer Meson Lab Commissioning Spring 2014 2015 Spacetime
COUPP/PICO Operations Summary• Main objective over next 6 months is to continue
particulate sampling and understand particulate nucleation of bubbles– Water from both PICO-2L and COUPP60 extracted
via filter in early July– Clear evidence for particulates in both, samples
sent to PNNL for radioactivity and chemical analysis
COUPP/PICO Operations Summary• Test chamber set up at
Fermilab to do spike tests, now running at Lab A
• Testing radon emanation sources now
• Will do particulate spikes through Aug-Sept
• Season 2 started on August 15, 2014! First few nights had excellent seeing (resolution), setting some records ~0.6 ‘’
• Two large air conditioners installed and started running to control daytime temperatures. This will further improve seeing.
• Year 1 data processing is nearly complete. Y1A1 dataset will be released later this Fall. Shortly after that initial public data release will take place.
• Serendipitous discovery of superluminous supernova. One of several papers to be submitted this Fall from early DES data.
Dark Energy SurveySeeing on Aug. 15
Supernova DES13S2cmm
Before SN After SN Subtraction
Holometer (E-990) Operations Status:
• Stability is most impacted by low frequency external noise. Recent fixes:• Tethered external hut to concrete blocks to reduce wind noise below 5 Hz transmitted into
ground motions• Tuned feedback loops to add resonant gain at problematic frequencies and reduce gain
elsewhere to maintain phase margin• Installed laser periscope enclosures designed to reduce turbulent flow of air driven by
temperature gradients (and hence reduce refraction noise)
8/25/2014
• Design beam intensity already achieved with sensitivity to 10-20 m/rtHz disturbance amplitude
• Analysis is underway on 30 minute dataset for first graduate student thesis
• Focus now on improving operations stability to more easily gather 10’s of hours of data