Radiacode, scintillation, neutron and gamma spectroscopy
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- čas přidán 27. 06. 2024
- THe radiacode 101 is being compared with a 3" Sodium Iodide detector . Surprisingly, neutrons can be detected and the energy calibration confirms the finding.....
Get the NEW Radiacode 103 here:
103.radiacode.com/Neptunium
Scintillation spectrometry catalogue
www.osti.gov/biblio/4305154-s...
Spectrometry HpGe catalogue
www.epa.gov/sites/default/fil...
Cooled NaI detector scintillation
iopscience.iop.org/article/10...
Neutron Gamma Scintillator
www.crystals.saint-gobain.com...
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Wow, I didn't know that a gamma scintillation detector was able to detect neutrons. That's really interesting!
I know right! I think it is pretty cool too .. now a pulse shaping would be a great addition!
It is not. It detects maybe some colateral activation. The way scintilator is used to detect neutrons is via time offlight
There is no residual activity after exposure, no background increase either. So not collateral activation my friend. Time of flight? This is not a mass spectrometer I don't know what you mean .. it's hard to tell with the radiacode but if I had to guess I'd say it's a secondary emissions from recoil type of thing... Not really sure. Hey thanks for the comment and thank you for watching!
Swap or add a LiI: Eu to the detector and it will pick up neutrons. The pulse height sticks out like a sore thumb from neutron capture events. To do it get an ebay special LiI sensor crystal, cut it in two and salvage the LiI crystal out saving the aluminum can. Do this in a glove box and glue with optics grade epoxy in a n2 purged glove box wrap the crystals both in the ptfe tapr then finish it with alumimum mylar and aluminum foil. Make sure it has a good connection to the sensor box. You can keep the crystals fresh with baked dry Epsom salt wrapped between the mylar and aluminum then dipping it all in a conformal coating. The neutrons show up as 1.4MeV pulses on it.❤
@@Neptuniumit is the recoil events or activation of the thallium sensitizer in the detector. You can add a LiI:Eu crystal wafer on the end of the CsI:Tl and get it to pick up neutrons from prompt decay of activation of the lithium. It isn't easy to do this because you need to do it in a glove box, lithium iodide us even more hygroscopic than even NaI. ❤
This video was very informative, thank you for making it :D
Your welcome!
Thanks so much for this! I've been helping a Radio Astronomy group (UKRAA) with the assembly of a portable Muon detector for Radio Amateurs, I polish the scintillator blocks and they have asked if I can look at the calibration of the device.
I had been thinking of buying the Radiacode for some time, your post has clinched it and has saved me weeks of looking for relevant papers on this topic.
Kind regards
Jonathan.
Glad I could help! Thanks ! Actually I am working on another radio project. We may be able to help each other?
I'd be very interested, if you send me details e.g. Frequency, bandwidth, any particular antenna requirements-linear polarisation or circular. I know the theory Maxwell's equations etc but usually Radiohams are the best source of practical knowledge. I always approach projects from first principals as If you take someone else's soln. you tend to get problems cropping up that you don't have the background to deal with them. @@Neptunium
Yes I agree, I am working on a EME on 23cm. I found a 3m dish I have to put together and mount. I am using WSJT on FT8. My call sign, KE8YDE is ok for up to 1200W at 1296MHz..My main trouble right now is how to get the feedhorn to both transmit power and receive weak signal without destroying the LNA.. Thanks and 73! @@jonathanlister5644
Ok, This is not straight forward... My first question is whether your feedhorn has a circular opening or a rectangular one and what are the dimensions of the open end. Is it a commercial Horn if so what make and model. I would strongly recommend a cover over it to prevent oxidation of the interior surfaces. @@Neptunium
This is kind of what I am asking about. I am aiming for a circular "ring" type of feed 1/4 wave length, inside a tube type horn, and use it as both collection receiver AND transmitting source.. the signal would have to go through it on the way in and out woth the LNA in between. Which sounds wrong and dangerous to me
I don't know what your saying but I like the way you say it
Science stuff... Lol
Rockstar! Thank you my friend. I bought one because of your content.
It's a great little device you'll like it for sure!
Do I need to calibrate using a Cs137 source like you do with standard Gamma spectroscopy?
@@chemistryscuriosities yes . I would! Just to make sure everything is where it's supposed to be at... Now you can use Cs137 or Co60 or any radio isotopes ...
@@Neptuniumhow about Am-241? I have a 80 uCi source.
@@chemistryscuriosities 80 milli curie !!! Wow that's a good source! Are you sure it's not "micro" curie instead?
Hi Neptunium.
First thank you for all your very interesting videos that's an amazing share!Well i 'm back on the "detecting neutron subject" ;) I made it with 50uCi of Am with aluminium foil but nothing in one hour...I've tried with shielding the neutron source in a lead castle to avoid the gammas from Am and i've put this in another lead container with my RC102 to avoid telluric and cosmic rays...My questions are: how much time do i've to let the spectrum works?I've red in comments that you are not using moderators such as PHED, but if neutrons are almost all above 3/4 Mev how to find them on a spectrum that range max at 2,8 Mev?I will try to connect an old Russian boron neutron tube that i have to my old french military survey meter in order to see if this probe can pick anything...Do you have any suggestions to help me replicate this kind of detection with the radiacode?
Thanks for your time and bests from Becquerel country :)
Well there is 2 problems with your set up, 1 your source is far too weak and 2 Al does not do a good job at neutron production. You'll need a much stronger source and beryllium. Then you MAY be able to pick up something on the RC102 at higher energy. Comme Vous etes en France, ca devrais pas etre trop difficille de se procurer du beryllium mais la source risque peut etre d'etre un probleme? Bien Le bonjour!!! Et merci pour regarder mes videos!
I’ve been impressed by the performance I’ve seen of this little scintillator! Not only can it detect gamma, it can also detect some beta and even neutrons. I’m excited to receive mine and put it to the test.
For sure! The second version is out radiacode 102 .. you'll Love it!!!
We do not recommend using a filter higher than 1 in value when viewing spectra, it is better to wait for a set than to observe such a corrupted spectrum.
That`s kind of what I was getting at, changing the value too much and you`ll end up chasing a ghost for ever. Thanks for the comment! always good input!
@@Neptunium Thank you for the video!) No one on CZcams has yet filmed the registration of neutrons with our device) You can also try to slow them down and register not recoil nuclei, but already their interaction at the thermal level.
@@anon_226 Yes i did that with boric acid, Gadolinium, heavy water, wax and Cadmium, It did work but the spectrum got messy so I did not included it in the vid. I thought the steps due to neutron recoils was more visual than a messy spectrum, which takes a while to register since the moderator forces the source away from the detector. Nice looking peaks at registered energy line is more "youTube" friendly !you know?
@@Neptunium Of course, the crystal of the device is small, the efficiency of registration of such high energies leaves much to be desired...
@@anon_226 it is still a very cool device.. Thanks for engineering it!
I have found it to be particularly sensitive to xrays, I built my own xray machine(and am working on upgrading it to a 160kV tube) and I have two of these Radiacodes, they pick up a lot more xrays than my LND 7317 Geiger tube
Yup.. nice
Cool! Thanks for doing this for me! I did not know cooling scintillator crystals was a thing but I guess reducing the background phonon interactions would inevitably increase the SNR. I didn't know they could detect neutrons that efficiently either! Can we be sure this is direct detection and not n capture transmutation isotope decay? Thanks again. Still not sure if I should get this or the Raysid. I like the higher resolution of the Raysid, but not the high price or the fact that it is totally sealed and when the li-ion battery inevitably dies will become a brick.
Instead of a single peak, I get a few (3 most times) I think this is neutrons bouncing before interaction . Also I don't get any detectable residual activity or any additional peak from a higher excited state at any energy. (As far as my equipment let me see ) eventually a neutron can be captured for sure, but the stepping in the spectrum is a good sign this is a neutron detection I think...I could always be totally wrong but I really don't know what else it could be . Hey the Raysid has an impressive resolution! Are you sure the connection doesn't also charge the battery? Seems like a pretty expensive few days of playing with it if it doesn't right?
@@Neptunium yeah the connection charges the internal li-ion, but I mean like all li-ion's they have a limited life of a few hundred cycles or maybe a few years before it's just totally incapable of holding any significant charge anymore. This tends to scale unfavorably at small size I've noticed too and the tiny battery inside something like the Raysid is probably going to degrade very quickly. It looks like it's a totally epoxied shut metal case so when it does die in a few years it could just become a $600 paperweight. The radiacode you have on the other hand is readily opened I see from a few teardown videos, and easy to replace the battery with a couple minutes and a soldering iron, so prob gonna go with that one eventually. I like stuff I spend a lot on to last a long time. I can't really expect a modern piece of electronics like this to last like my 25 year old Ludlum 3, but I'd like to be assured of maybe a decade of use at least.
@@Muonium1 make sense! Yeah I get it.. the radiacode is probably better then..
You know, I think u only charged it once since I had this dosimeter... It can stay on for about a week before the battery dies... It's pretty good
@@Neptunium hmmm, interesting
Awesome work you doing!Will never forget excitment running the fusor when the neutron probe started taking off at 20 kV at this time radiacode didnt exist. Would be very curious if you could pick up fusion neutrons with it finally. And second thing: Where is the neutron peak if you put a moderator inbetween ur radiacode and the PoBe source? Regards, M
Yeah i plan on doing just that! There wouldn't be any peak with a moderator since the neutrons be at all different energy. So a broad flat mess on the spectrum is what we should get ! Thanks for the comment my friend! Did you see my fusor videos from a few years ago?
@@Neptunium Hi, yes, awesome videos. I always wished to use the fusor as a DIY neutron source for NAA. If you set up your fusor again maybe you can try if this is possible. BTW what do you think the new Radiacode 103 GAGG crystal will be responsive to neutrons too?
Interesting video! I subscribed to the channel))) Is it possible to obtain neutrons by irradiating aluminum foil with alpha particles from thorium-232?
Hey thanks for the support! Yes you could get a few neutrons from using the alpha from Th232 and Al foil... That's unbelievably inefficient and a very rare event but in theory yes. Th 232 is not a very good source of alpha for nuclear experiment.. Po210 or even Am241 are far superior and even with those you'll need milli curie range of activity to even register anything! Thanks again for watching!
@@Neptunium Unfortunately, I do not have such sources, but I would like to repeat your experiment. I have WT-20 electric welding electrodes (contain about 2% Th 232), a scintillation gamma detector (3 cm3 CsI), a lead house and a lot of time))) The neutrons will have an energy of about 3-4 MeV ?
@@Pikrat well you
Have a nice detector ! Give it a try !
Seems someone is beating me to build an accelerator based n source. Nice!
Cool! Please share your progress and results!!! Thanks for watching
@@Neptunium Im very slow right now with the project due budget issues but ill report any progress. The accelerator tube is being tricky to design. So far Im thinking in using thick glass rings as insulators with stamped stainless electrodes, but Im not sure if using high vacuum epoxy to seal them would work great (specially because it might be inside a pressurized tank and gas permeability might become an issue) in a paper some Argentinian researchers even used PVA glue! or go to the lengths of using soft metal seals and build the accelerator vertically and compress the stack with insulating rods. Is a long term and big project, kinda like the guys who build their own cars, also I guess similar budget. Edit:Im going for the electrostatics route, seems is the most feasible way for me, im not good with RF stuff.
are you using NIM's for this and if so how are you bringing your signal into your computer?
Yes. The signal must be amplified before the MCA which connect with a USB to the PC. This is the old pocket MCA 8000 A .
Don't think he understood teh question. NIM is the standard for the old nuclear setups. In this case, the detection was probably done without NIM modules.
@@ciprianpopa1503 no he seems to be running his bias source, counting and perhaps a gate from nim, and has his preamp running to a mca8000a instead of opting for a ADC and AIM module or MCA module, ive tried this setup since then
Yes the signal is going thru a NIM amplifier and I have a separate power supply. I explained it here some years ago. czcams.com/video/mUo-skvMt_s/video.htmlsi=K41d_93i8HK00aQF
Broooooooo, You r awesome.
Great Demonstration with great knowledge. Do you have any social media?
Thank you ! Glad you enjoyed it!.. unfortunately no I don't have anything outside of this channel!
@@Neptunium bro, Can u melt sugar on copper in room temperature? if u can, enlighten in brief
@@WSHH-DesiVersion if you're asking about a potential reaction between sugar and copper hot enough to melt sugar? I think not. Can you use a copper cut to melt sugar with a torch ? Yes of course!
Does the Radiacode pick up alpha or beta?
The crystal is inside the plastic case so no it can't pick up any alpha or beta, it may see some X-rays from braking radiation from a strong beta source but that's it... Thanks for watching!
Nice video ,does the radiacode 102 come already correctly calibrated? I shouldn't have to mess with the calibration?
I think I read something about the calibration already done on the 102 yes... Check out the webpage and thank you for watching!
@@Neptunium okay I will check out the link in the description!! Yes sir !! Enjoyed tge content .and thank you for the reply!! Cheers !!
Radiacode have thermal compensation
I did not know that! Thanks 👍.. do you know how good it is ? To what extent ?
@@Neptunium Try it in the fridge - you will be surprised! Each 101 is individually temperature calibrated.
Sir, I am using old computer.. It is not compatible with sdr software... So I am trying to buy new laptop... Can you give any suggestion(recommend) for laptop which in affordable rate and cheapest...
Yes! Get a new one
What if you add a moderator like carl willis did with his plastic blocks, shouldnt that reduce the energy of the neutrons and bring the below 3 mev on the spectrum?
Yes your right! And I did try it too.. As expected their was no peak anymore just a broad general increase of the entire spectrum I didn't think it was worth mentioning since at the time I was looking for a tangible proof of neutron detection at specific energy.. thanks for your comment! I like Carl Willis, he has authorization to show the things he play with... I dont
@@Neptunium Thats so cool!
Unfortunatly laws in germany are even stricter so the strongest americium sample i can own is from a household smoke detector, thats not gonna be strong enought to create any detectible neutrons :/
I wanna get a radiacode too, I has so many advantages compared to my normal geiger counter, what do you think about the new 103G with the gallium Germanium detector?
They dont provide any information about advantages compared to the normal 103 on their website.
@@yaykruser well, I don't know about the 103 . I only own the first version, the 101. But I was contacted by radiacode to do a review of the 103 .... So stay tuned!
@@Neptunium well, the 103 is outdated already, 103G is the new version😅
@@yaykruser wow! I didn't even know that! Lol!
Why is there an elevator in the background?
An elevator? Oh because of the music ! Lol
Do you know that Radiocode 101 is made in russia? Cheers
yeah I knew that
Good video however I’m not anywhere convinced those are neutrons being detected.
Actually I wasn't either. So I tried with other materials including aluminum foil and got nothing. using screens of cadmium, boron and/or gadolinium reduced and broaden the peak significantly. So what else could show up above 2MeV ? Create bouncing steps as seen in neutron spectrum from proportional tubes? And show up ONLY when nothing else is going on? I was skeptical too and if you have a better suggestion i would love to read it 😊. I think the process could be different than what I described in the video, but the source can only be attributed to neutrons. It is not a discovery though, some scintillators DO work with neutron.. thanks for watching!
@@Neptunium
I always use proportional tubes made specifically for neutron detection. Once calibrated they’re subjected to intense X-rays and electrical noise to ensure there’s no false counts from those sources. Outside of that, activation of indium and silver foils are the absolute fool proof method of detection.
Scintillation or PIN diode based detectors utilizing a proton-recoil arrangement may be ok if used with a purely static isotopic neutron source, meaning something with a guaranteed absence of other influence. There’s lots of design factors to consider. But it is fun stuff to experiment with.
@@ClagwellsGarage I thought it would be some recoil type of process and as shown in the video, there is nothing else in that region with that energy that could be interfering. There might be other processes too your right but I would think a secondary x ray would not be able to yield energy in that region . My source is getting weak now but I can still try indium and silver ! Fun stuff indeed!
RadiaCode 101 is the best dosimeter ever!
The project is constantly evolving. We are waiting for the increase in channels, energy compensation, and a couple of new features!
That would be nice ...
@@Neptunium energy compensation has appeared in new firmware
Excellent! Thanks for the update! I'll update today!
You have to see them all dosimeters in order to make such a statement. From one who has seen some of them, I can assure that it is at the bottom, in the toy category.
Sar copper me anti Iran kaise hog pilij nest video 🙏
I have no idea what you saying
In the beginning was the Word, and the Word was with God, and the Word was God. 2He was with God in the beginning. 3Through him all things were made; without him nothing was made that has been made. (John 1:1-3)
Holy troll batman!
*PROBLEM IS ARE THEY SUPPORTING **_-russian-_** MILITARY*
Not a political channel. Off topic
@@Neptunium it’s very relevant if they support terror and genoside, are you going into business with nazis and just saying we’re not political here fuck off