Server Live

The server is live at https://cosmicrayobserver.com There are many improvements planned, but you can get an idea of the future of smartphone cosmic ray research by checking out the new site. Don’t forget to find those old iPhone 4s or 5s and plug em in! Cracked screens and no cell service are fine! Join the …

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Cosmic Ray App’s competition – Crayfis

Of course, it’s not really competition, its all the more fun and science! From The Crayfis Blog While it may appear that the CRAYFIS experiment has pulled a Rip Van Winkle, disappearing for the Tumblr-equivalent of 20 years, we’ve been as hard at work as ever. Since our last big publicity push in 2014, we’ve had …

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Cosmic Ray CCD video.

Nice video explaining how CCDs capture cosmic rays… Its ‘just’ explaining a website, but its a nice easy 6 mins. The CCD in the experiment described is much thicker than an iPhone camera, so on the iPhone camera straight tracks are rarer, and cosmic rays are also often straight through – just dots. How would …

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Signal Processing details

From the Crayfis group: ( https://arxiv.org/pdf/1410.2895v2.pdf ) With the camera as the detector element, the phone processor runs an application which functions as the trigger and data acquisition system. To obtain the largest possible integrated exposure time, the first-level trigger captures video frames at 15-30 Hz, depending on the frame-processing speed of the device. Frames which …

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A server to show off your work!

A server edition of Cosmic Ray will be able to show off your work. We are welcoming ideas about the server user experience and functionality. It would be cool to be able to download event data as CSV, to view a map of the earth with a scaled up time line, to see where the …

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We are live!

The initial version is out on  the Apple App Store. A 2 block event with a score of 1677. Scores in version 1 are not absolute, but rather relative – different phones will have different scores for similar events. The best way to run the app is overnight or for a few hours while the phone is …

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