More information about what cosmic rays really are, is available here. http://cosmicray.com.au/
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I'm working on a number of different design approaches for this project as it will need to be more cost effective if I was to build a larger installation of 100 or more detectors. The detectors in the array may be enclosed in a type of bollard lamp post, sphere, something that hangs on a tree or tripod or is put in the ground like a paving block.
Future prototypes and installations may include a software, pulse summing and solid-state detectors. More details about this project will be added in the project logs below.
Another aim is also to setup a IoT wireless network linking each detector, so for example 100 detectors spread across a hectare might be monitored live to produce a histogram of activity. Further each element of the Cosmic Array is essentially a complete cosmic ray (muon) detector and radiation (gamma) monitor. So it can not only be used in a light and sound display but also be used to measure both cosmic ray flux and local background radiation. So the design will also include a suitable IoT device so information can be accessed or transferred over a network or the internet.
The project has no agenda other than the first of what I hope are thought-provoking art/science installations. Which will provide an interesting window into the universe and the natural world around us, leaving the observer to form their own connections and conclusions.
I have a live installation of 16 Detectors will be on display in Adelaide for the Splash Adelaide winter festival in September 2017.
I will also have a live display along with other detectors I have made at this Maker Faire Adelaide 2017 in November 2017. - http://adelaide.makerfaire.com/. Maker Faire Adelaide is the largest Maker Faire in Australia and in the Southern hemisphere.
Note about: Geiger–Müller Tubes
I've had comments regarding the validity of using Geiger–Müller Tubes for a cosmic ray (muon) detector. Pointing out that Photomultipliers and scintillation panels are best, and yes the are far more effective. However, they are also expensive, whereas Geiger–Müller tubes are relatively cheap and easily available to purchase.
Although I'm currently working on a solid-state detector there are a few issues yet to overcome, so this is still a few months away.
History is full of examples of physicists using Geiger–Müller tubes for cosmic ray observations up to the 80s. Geiger Tube Telescopes (GTT) were used by NASA including many Pioneer spacecraft missions and others. One most notable user was Bruno Benedetto Rossi a famous Italian experimental physicist who made major contributions to particle physics and the study of cosmic rays. At the age of 24, he fabricated his own Cosmic Ray detector using Geiger–Müller tubes and then went on to invent the first practical electronic coincident circuit.