Cosmic Ray Detector sat on a Raspberry Pi PierX1 Ruslan Asfandiyarov, Cosimo “Cosmic” Cantini, James Devine, Hugo Day, Leïla Haegel, Martin Hellmich, Justin Lewis, Etam Noah, Laurel Coffey What were we planning to do? ●  Detect cosmic rays and reconstruct showers with more than one detector ●  Design fully open source ●  Measure cosmic rays with prototypes (on a Raspberry PI!) o  General data (GPS, Altitude, Temperature) o  Time (ns) o  Energy (12 bit resolution) ●  Display data from prototypes ●  Correct design errors in prototypes ●  Figure out what to do next: Kickstarter? Event display Cosmic Ray -> Scintillator stick -> Internet Digitisation steps: Digitisation steps: Actual Architecture + What works so far... Scintillator plane + fibre + SIPM Connector + SIPM Power supply -72V Electronics module ADC Readout Data acquisition Data storage Central server Internet Indexing, Management Data analysis Data representation Raspian Timing loop Temperature Pressure Humidity I2C GPIO SPI Interupt Raspberry Pi Trigger ADC SPI UART Pulse Shaper Delay line Pins Front End Amp GPS Module UART I2C (x2) Achievements ●  Board design - everything fits on a Raspberry Pi Hat! ●  Prototype assembly (VERY hard work, thanks to Sylvain Kaufmann for his most excellent help!) ●  Board readout routines ADC, GPS, Trigger ●  Simulation data for 10 detectors, web interface ●  Cosmic particles clearly detected with a scintillator bar and Silicon Photo-Multipliers 30% SPACE SAVING Prototype PCB Version 2 PiHat compliant What did we learn? ●  ●  ●  ●  Prototyping is HARD Prototyping is FUN Prototyping is TEAM BUILDING activity THE PORT is GREAT!! What’s next? ●  PCB version 2, more prototyping ●  Fine tuning of inputs ●  Onward, to kickstarter (eventually) Questions ? Everybody is welcome to our container to watch the particles that go through your body every second...