Ultra-low radiation cables reduce background noise for neutrino and dark matter detectors. Imagine trying to tune a radio to a single station but instead encountering static noise and interfering signals from your own equipment. That is the challenge facing research teams searching for evidence of
. The research team points out in their study that low-radioactivity cables can increase the sensitivity of the experiments and even allow more flexibility in detector design.So, exactly what are the researchers looking for in these experiments? In the case of both dark matter and neutrinoless double beta decay, they are hoping to record extremely rare events that could solve two key mysteries of the universe.
“Every step we take to eliminate interfering radioactivity gets us closer to finding evidence for dark matter or neutrinoless double beta decay,” said Saldanha. “One component that we can’t avoid in our detector are the cables that transmit the signals, which must be of very low radioactivity,” said Alvaro E Chavarria, a physicist at theand a collaborator on the DAMIC-M project. “Prior to this recent PNNL development, the best solution was microcoax cables, which carry too few signals and would have required a significant redesign of our detector.
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