Do you even realize how advanced of a hacker this man is to make THIS VIDEO'S ADDRESS START WITH "PCB"?

Two uploads in less than a year? I love it

One day late for pi day 😥

amazing stuff! I hope they have a version for those of us who are solder challenged

Collegue: What did you do this weekend? Marco reps: Nothing special, just built a muon detector for CERN just for fun...

You're always building the kinds of projects I would build if 1) I had a little more money to spare, and 2) my brain worked a little better. Always a pleasure to watch.

Looks like a fun project to participate in. * sees PCB * nope.jpg

By the way: the particular signal amplitude does not matter that much in this exact application apart from distinguishing cosmic ray muons/electrons from each other and from other radiation sources. The particular muon energy does not contain much information, since after cosmic rays hit the atmosphere a huge particle shower is produced (just as you said), in which most of the information is, unfortunately, lost (for example, it is much easier to detect the initial particle mass (A) than it's charge Z). Most of the information is restored from the number of particles in the shower, not from their energy. Besides, the signal amplitude won't change very much with changing muon energy due to the particular "particle energy - energy losses (which signal amplitude is nearly proportional to)" curve - the bethe-bloch curve. That is why calorimeters, which absorb the particle, are way more precise in energy detection. Absorbing a muon requires a shitton of tungsten/lead and a huge number of detectors to acquire the precise path the particle has traveled and it's energy losses along the way. In short, there are ways around this problem (not only with a calorimeter straight approach), but certainly not cheap and easy ones. Signal amplitude usually in these applications contains more information about the particle type, not it's energy (for example, the signal amplitude is proportional to Z^2 and detecting the particle charge is way easier). Just to be clear: I am talking about registering cosmic ray muons, which are relativistic. At low energies the signal amplitude do rely on the particle energy - see bethe-bloch curve, again.

Literally nobody: Have you heard about the Dry German Scientist Comedian? Me: Yes, I am subscribed with all notifications.

The Geiger counter sounds in the beginning fooled me. I thought I had a dying smoke detector in my house.

I'm using some BME280's for my dissertation: they're really nice sensors, 10/10 would use again!

For a second I thought this involved turning the DRAM on a Raspberry Pi into a cosmic ray detector.

Just yesterday I was rewatching some of your older videos, thinking "when is he going to release a new one?" Talk about serendipity!

I really hope that the component supply clears up by 2022. A project I was working on that I was hoping to turn into a kickstarter is completely on hold because like everything that isn't a dip part from 20 years ago or a passive is out of stock. FPGAs are gone, HDMI drivers are gone, ethernet PHYs are gone, USB2 ULPI and USB3 PIPE chips are gone, etc. I'm trying my luck with utsource at the moment...

Marco Reps hits the air; a smile hits my face! Thanks as always for the laughs and the projects. You really make my day.

ive lost count as to how often i have already rewatched all your videos, yet they always keep me hooked

Love your content and sense of humor, hope one day to buy you a cold beer.

Hey! I have a ton of those BME things in my house. Cool to see you de-solder one. Thank you!

You are insanely talented. I love and watch your videos at least twice. Your videos are on another level.

Love your narration and sense on humor. Don't understand the details but love the projects.

By far one of your most amazing projects ! Really awesome. Since I have a some scintillator recycled stuff... I'm tempted to do some tinkering...

me: :( me after seing this a Marco Reps video : :)

amazing to see someting related to my work at this site. We use Nal crystals with photomultipliers to look at radiation underground. Very cool Marco!

I'm always excited to see a video posted here. 🎊🎉 Thank you for this video uploader! 🤗

Just like Gigabecquerel, we are also investigating the possibility to make our own scintillators, but we still need to get the process down. Right now we are struggling to get it free from bubbles but we do already see some photons. Lots of work, but very fun and interesting.

The humor... Oh my. Awesome video and project.

As always entertaining like hell, including a cool foot warmer hack. By far beyond my personal capabilities still triggering some neurons in my brain. Thank you.

Very exciting project. Thank you

I like that technique of getting an SMD part out with flame-heated small pliers! I gotta build something like those pliers with heat-resistant handles.

"Blitzortung" is a nice project, similiar network, but for lightning detection. I recommend a look.

What a beautiful little video. Totally boffin-ish from my point of view and out of my technical reach. More power to you Pi-rotons!

I'm waiting for the moment that reps is finally sponsored by keysight.

Many thanks Marco, always worth dropping in. More projects like this please, how I miss the Amateur Scientist in Scientific American.

that hot plate is sweet. gonna have to pick one of those up. Awesome video as always.

You have my full Repspect for you work, Sir.

I hope I can one day get all the tools & such needed to build one of these one day! Looks very cool & it seems to be helping the scientific community.

No way! I was just thinking about this idea!! Thanks Marco!

Fantastic project. Love it

i love the mini hot plate, mine arrived a week ago, now i can reflow small boards at home :)

Nice video as always, I found a sat view of my country Tunisia at 2:27 .

Marco...we need new video in these barren times!!

Great video, fascinating stuff I am definitely gonna look at those " Chocy bars "...cheers.

Another great project of yours.

Thank you for these videos. Super cool and interesting.

Marco Great Awsome video once again!! ... and on your last video you told me about the CERN repo of cool projects .. .a Gold Mine for everyone to explore no doubt! But I also told you last time ... I do not like vapor phase cooking to solder the chips ... never liked that process and now you also know why :) ...

Very cool project .

Great video, love it!

Your videos are awesome man!

I'm really glad you still post on UKposts. I really enjoy your channel, but I frequently forget to check for uploads on Odysee. Even when your video topics dip into depths that I have a hard time following, your narration and sense of humor makes it enjoyable nonetheless.

torch and tweezers to remove smd components is a new one to me, frigging awesome !

Wow..Marco always Blows my Mind..

Didn’t even watch the full video yet but holy shit I am so excited. This looks so cool!

Awesome, I'm interested in using this in an effect pedal or modular synthesizer.

Ordered some 4 layer board from jlcpcb to make an HDMI adapter for a FPGA board I have that only spits out LVDS. The redriver/level shifter chip is an 0.4mm pitch QFN that has 30 pins under a 4.5mm by 2.5mm package. I hope the stencils are good...

Amazing project, thanks Marco for the heads up. Btw, have you seen Zack Freedmans video about modding the Keysight Oscilloscope? I couldn´t stop thinking about your reaction to that an laughed out loud.

Great video as always👍 Thanks of sharing👍😀

You can also use the scintillator+PMT to build a gamma spectrometer.

Plastic scintillator SLAPS. "WHAT?!" :D

What the hell, I'm just researching on this topic and this video was just uploaded today :o I actually bought some photodiodes already, to build some simple circuits. I did look at scintillator materials. But for now I want to try it with x ray intensifying screen, because I have it there and I'm only able to get large chunks of the scintillator plastic.

Speaking of Bionerd, havent seen her around in ages. Hope she's still ok.

Hi Marco, great video!, I was wondering about the screws in the scintillator slab, did you make that or you bought with it?

There is also the "CosmicWatch" project that may be of interest. Unlike the "CosmicPI," you need to build at least 2 "CosmicWatch" units to detect the muons.

Thanks for the macro Banana for scale! Also MHP30, I fear I missed another mini waves review?!?

I’ve got a Scintillation Detector from the 1950s. It is a Precision Radiation Instruments Model 111B. I got it working at one point, but it has since sat around :(

You are the German "This Old Tony". Love it!

I'm already on the waiting list for an MuonPi, but i probably can get it to work with the CosmicPi project too.

The best stand-up technical comedian.

Nice Project and really well done! If tried an similar project using six photodiodes to detect cosmic rays, but didn't ever get to finish it :(

Thank you!!

8:25 good to see that some people have the same idea :). I use a 3D-Printer Hotbed for the same purposes :D

I NEVER expected a Davie504 reference in a Marco Reps video (at 5:29)

Id love to build one!

You went all in with CERN stuff!

In a previous career I repaired many a scintillation detector and I'm surprised you got it light tight enough with just black gaffatape. These things are pretty sensitive to ambient light.

What a wonderfull project! I would appreciate a radon only detector too :)

I always use Eurocircuits eC stencils and already have their eC stencil fix for €15. No manual alignment of stencils, great result every time. Not quite as low as china prices though.

"Cheap (

You know, I was just thinking about a similar open source distributed radio antenna one could make, but this is pretty cool too. How much is it all together?

OMG yesssssssssss I wish I had money to get on your patreon.

MARCO!!! When can we get an update on the open source measure unit?? I’m excited and I assume the project is not abandoned considering the merch with emu logos on them?

I saw another technology used where it was a big device that required cooling or something i don't really remember but it was much bigger and relied on a different tech I believe not sure anymore

Nice Bass and Davie504 reference! EPICO! And nice video as allways

Hi quick questino of of the blue. Which resistor manufaturer would you recommend for vintage audio equipment and another or even the same for measurement accuracy equipment such as an oscilloscope etc.. I am based in Poland. Would like everything to be as accurate as it can possibly be. :) All the best to you! Cheers.

Marco, please update us on your OSMU project. It’s been a while and I am really hoping you get around to finishing it or at least make some progress. I was reading LT1970 datasheet earlier this week, and it seems very capable all in one solution.

I like it. Do you think a Schumann Resonance meter is practically possible with Pi? ☕🐸

Just wondering did you use optical gel for the SiPM and the scintillating plastic?

Hi Marco, even if your broken NaI crystal were not broken, it and your two slab plastic scintillator are more like two digit spectrometers. If you want a real 9 digit radiation detector, the only one smaller than a truck (e.g. smaller than grand sasso macro) is the Fission Meter, which easily can identify a cosmic ray interaction. No need to rely on magical thinking that small uncalibrated scintillators will be better than a random number generator. Try collimating a gamma ray source perpindicular to your plastic slabs and proving that coincident pulses look different from the thorium and uranium in your house concrete/masonry. Let me know if you want some help.

Was just binging all your videos, are you reading my mind?

Thumbs up after the first second. I'm sure I won't get disappointed

Marco, was simple fluorescent lamp or neon lamp triggered first by the passage of cosmic particle when HV is applied?

I've been following the cosmic pi project for some years and already wondered how that single cosmic pi in germany got up there. So I assume that's yours on the map :) I hope there will be soon a model for normalsterbliche.

i sort of thought this would involve some sort of distributed bit-flip detector. still awesome though :)

MARCO: quick reminder, pixel-based censors on commandline text and numbers are easily decoded, text deblurring is like a beginner network to teach people how to make effective datasets. like, you almost should reupload before someone takes it as a challenge to find your GPS coordinates.

I do the hardware design on a similar project at GSU. github/muontelescope has some stuff, a bit different topology and design, but still fun! Looking to have 40 detectors deployed this year.

How is that pcb hot plate? I've considered making a DIY reflow oven from an old toaster, but bench space is running low and I still need an oscilloscope...

Marco, what was your build cost? Also, an interesting point of fact, if you use a Thallium doped KI crystal as your scintillator allows you to build a spectrometer. This, in conjunction with a multi-channel analyzer that you can do in the STM32, would allow you to identify radioactive sources. I bet with a little more tweaking using your own x-ray source, you could create your own x-ray fluorescence detector, and identify, which high precision the composition of metal alloys, etc.

Due to the public link to the Grafana and the limited data set on the map, blurring the GPS data doesn't do much unfortunately when the location is pinpointed on the Grafana page.

Is the GPS primarily being used for timing here?

I do have some Germaium scrap pieces from thermal imaging lenses. Would these provide me an option to detect radiation?

Marco, where did you get the scintillator "slabs" from? I could not find them at Ketek's.