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Fall 2020
The PICO-60 experiment offers world leading sensitivity to the spin-dependent WIMP search, looking for the direct measurement of dark matter nuclear recoils with protons. The primary background in moderately super-heated C3F8 bubble chambers are neutrons, which can produce a signal...
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Spring 2018
The PICO-60 experiment was a bubble chamber for the search of Weakly Interacting Massive Particle (WIMP) dark matter. The previous run of PICO-60, conducted in 2013, was limited in sensitivity by background events that were most likely caused by particulate contamination and the buffer liquid....
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Studies on Radioactive Background Mitigation for the PICO-500 Dark Matter Search Experiment
DownloadFall 2024
The PICO-500 dark matter search experiment features the next-generation bubble chamber detector designed by the PICO collaboration. The sensitivity and live-time of ultra-low background detectors, such as PICO-500, are crucially dependent on the radio-pure materials used in the construction. The...
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Fall 2021
Bubble chambers filled with fluorocarbons are a world-leading technology to search for nuclear recoils produced by spin-dependent WIMP dark matter particles. In this work, a novel bubble chamber using 28 ± 1 ml of the fluorocarbon C5F12 as target material is investigated. This superheated...