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Joined: Wed Sep 30, 2020 7:04 pm


Post by lnies »

Here you find answers to the most frequently asked questions.

Q: How do I get a scintillator detector?
A: Currently we distribute the scintillator detectors already assembled including the photo-detector and the preamplifier on the basis of a permanent loan for a safety deposit of 25 EUR together with the MuonPi HAT board. In case you want to return the detector, we will refund the full deposit. The scintillator material was kindly provided for the Justus-Liebig University Giessen by the US-based company Eljen Technology.

Q: What is the best place to set up my detector?
Fortunately for our project, muons can easily penetrate walls, ceilings, windows, and most other materials without being significantly perturbed. Therefore, you can place your detector where ever you want; it really does not matter whether that is in the basement, the attic, or under your bed. It is more important, however, to have your setup sit in a dry environment to avoid moisture creeping into the scintillator detector and to avoid any electronic complications with the Raspberry Pi and the HAT. Further, the flat face of the scintillator should face straight upwards to maximize the surface area of the detector relative to the flux of the muons, which peaks at a 90-degree angle compared to the ground. One big caveat is, to synchronize the Raspberry Pi HAT with the satellite clocks, that the detector has to have access to a good GPS signal at any time. Not unlike the satnav in your car, the GPS antenna should be located very close (or even attached) to a window, which in practice limits the choice of setup locations.

Q: How do I get a MuonPi HAT board?
A: We are currently in a very early stage of the project, thus we could not yet establish a proper scheme on how to acquire the hardware. If you would like to host a detector unit, please send us a mail to support@muonpi.org and we will contact you with updates about the currently available hardware and with information on how to proceed further. The current costs are calculated based on the procured hardware on stock and are calculated individually. To cover the costs we are happy to receive any donations at our PayPal account at donation@muonpi.org. In case no hardware is currently available we will sign you up on a waiting list and get back to you once a detector unit is ready for shipping.

Q: Can I assemble the MuonPi Hat board myself?
A: As of now, to guarantee a smooth testing phase, we ship the MuonPi Hat boards already assembled. However, we do promote our users to assemble the hardware themselves in case sufficient tools and knowledge in soldering SMD components are available by providing the components as an assembly kit. Using the hardware documentation on easyEDA you can test your skills by following a thorough tutorial on our Wiki.

Q: How do you plan to distribute the hardware in the future?
A: Since we are a non-registered non-profit organization we do not aim to generate any profit. Therefore we aim to collaborate with a third-party contractor who will take over the role of selling and distributing the hardware. We will not be involved in the procurement or vending of the hardware in the future and, consequently, we will not set the price.

Q: How can I check the mt status on the waiting list?
A: So far we are managing the waiting list manually. For receiving any status update concerning your position on the waiting list or estimated shipping dates, please leave us a message at support@muonpi.org.

Q: How can I create a user account to use the MuonPi services?
A: To use MuonPi services such as Grafana and the user forum, please fill in the registration form and we create a user account for use. This might take up to 24 hours.

Q: How can I subscribe to the newsletter?
A: On our main page muonpi.org you can find the button "Sign-Up Form" where you can sign up for the German or English newsletter. Alternatively, you can use this direct link.

Q: How can I unsubscribe from the newsletter?
A: In case you want to unsubscribe from the newsletter you can use this link.
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