News

Dark matter-electron scattering result from SNOLAB!

DAMIC's latest results on the search for light dark matter particles (MeV-scale masses) was posted today on the arXiv! Link.

These are the best exclusion limits on the existence of dark matter particles with masses in the 0.5–5.0 MeV range:

The 90 % C.L upper limits on the DM-electron free scattering cross section (σe) as a function of DM mass (mχ) for three different dark-matter form factors (FDM) obtained by DAMIC at SNOLAB (solid blue line).​ Other lines present results from competing experiments.

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Wire bonder works!

Yesterday we completed the first DAMIC 4k x 2k CCD package at the University of Washington. The device is half the area of the CCDs currently taking data at SNOLAB but otherwise identical. This CCD is a candidate to go to Los Alamos over the summer for activation by a neturon beam. The goal is to perform an experimental estimate of the tritium that is activated in silicon by cosmic neutrons.

Left: The first 4k x 2k DAMIC CCD to be wire bonded at the University of Washington. Thanks to Bret from Luna Tech Sales for his assistance. The package is now complete. Right: The resulting wire bonds as seen through a microscope: 78/78 bonded in automatic mode, 100% success rate!

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Clean lab is ready!

After a few months of hard work our clean CCD packaging and testing lab is ready!

Left: View from outside the clean room. Center: K&S 1470 automatic wire bonder from Luna Technical Sales and inspection microscopeRight: CCD test chamber under commissioning and CCD mock-ups.

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Website is up!

Welcome to the website of the DAMIC Group at the University of Washington. We have included a brief description of our experiment, the specific activities at UW, and our member profiles. Please use the tabs above for navigation.

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