Radiascan 701A Geiger Counter ‘English Review'

In today's video I take a look at the Russian made Radiascan 701A. A pocket sized Geiger Counter capable of detecting Alpha, Beta & Gamma radiation.

Пікірлер: 73

  • @LoneTiger
    @LoneTiger3 жыл бұрын

    Very nice video, wish I had some stuff to test my radiascan. honestly everyone should own one of these. You should add text to the video when showing different radiation sources displaying what type of radiation its emitting (A/B/G, all of the above?) Keep them coming, the natives need the info. :)

  • @icecorebaby
    @icecorebaby4 жыл бұрын

    I have one. I love it!

  • @flimsybop
    @flimsybop4 жыл бұрын

    Have you had any experience with other handheld pancake probe counters like the Mazur PRM 9000 or the Ranger from S E International? I was wondering how the radiascan compares to other pancake probe handheld meters.

  • @SurvivingTheApocalypse

    @SurvivingTheApocalypse

    4 жыл бұрын

    Currently, the only other meter I have with a similar probe is this one :- kzread.info/dash/bejne/p6qLrbqrgNfNn84.html

  • @TheXone7
    @TheXone72 жыл бұрын

    Received today. Just finished reading the entire manual (usually never read manuals) and I can honestly say, this device is so much wisely thought through. It amazes me.

  • @SurvivingTheApocalypse

    @SurvivingTheApocalypse

    2 жыл бұрын

    The more I use it the more I love it.

  • @TheXone7

    @TheXone7

    2 жыл бұрын

    @@SurvivingTheApocalypse I have also Radiacode on the way, but this one is the "precision tool" :) The only thing I am still confused about is the back cover. It serves as a beta+alpha blocker in the gamma symbol (so the metal would only allow gamma through), but what is the purpose of 4 arrows symbol? When measuring the beta flux, this 4 arrows cover should be used and then the cover completely removed. However wouldn't this then also measure alpha flux? Shouldn't the measured surface be covered by thin sheet of paper to let only beta through? Isn't the 4 arrows cover letting beta through and blocking alpha? This was not clear from the manual. Thank you for advice..

  • @CBTheMechanic

    @CBTheMechanic

    2 жыл бұрын

    @@TheXone7 I'm here for the very same question :)

  • @SurvivingTheApocalypse

    @SurvivingTheApocalypse

    2 жыл бұрын

    The rear cover has always been a bone of contention with this device as the plastic is a bit on the thick side so it can block some Beta too. I think if you want to do a Beta ONLY reading then using some paper would be a good way around it. I might ask the developers about it.

  • @CBTheMechanic

    @CBTheMechanic

    2 жыл бұрын

    @@SurvivingTheApocalypse Thanks a lot for taking the time to answer! :) Very much appreciated.

  • @Weaponsandstuff93
    @Weaponsandstuff934 жыл бұрын

    Excellent review, seems like a really nice meter. The great thing about that alpha window as well is you can measure low energy beta emitters such as carbon 14. My C14 sample is pretty crazy as it will overload the Mini Monitor at 2K CPS, in Ion chambers sensitive to alpha, beta it registers over 3 Roentgen but the Terra P and most Beta/Gamma geigers can barely detect it as the electrons are so low energy they cannot pass the metal. Good call on that contaminating it as well, I managed to avoid that dial getting my Terra P but then managed to contaminate the Terra in the mildly radioactive rain from the Chernobyl forest fires. Oh and I believe Thorium does give off gamma rays, it's just they're so energetic lots of detectors can't see them. When my digital ion chamber eventually arrives from the States I'll see if it can give a reading for Thorium gamma wise.

  • @SurvivingTheApocalypse

    @SurvivingTheApocalypse

    4 жыл бұрын

    I love my Terra-P but I think both the Terra-P+ and the Radiascan are about £100 more than they should be.

  • @SurvivingTheApocalypse

    @SurvivingTheApocalypse

    4 жыл бұрын

    Andreas Jack in the video I compared it to the GMC 500+ which is probably one of its main competitors (along with the Terrra-P range). My only con of the Radiascan is the lack of wifi and the ability to upload to an online database. I think a unit of its price should have that. Other than that, I am extremely happy with it and its replaced the Terra-P as my EDC device.

  • @SurvivingTheApocalypse

    @SurvivingTheApocalypse

    4 жыл бұрын

    I would still call the 500+ the main competitor as the vast majority of people don’t need a device that detects Alpha or are simply ignorant to the fact that Alpha radiation even exists. I don’t own a 600 (I was totally put off getting one by my experiences with the 500+) so I cant comment on the 600 user experience. My two favourite handheld meters are the Terra-P and the Radiascan. I am not someone that is ever really put off by size or weight, I just want a unit that does what its supposed to do.

  • @SurvivingTheApocalypse

    @SurvivingTheApocalypse

    4 жыл бұрын

    I made a video especially for you. Uploading it now.

  • @SurvivingTheApocalypse

    @SurvivingTheApocalypse

    4 жыл бұрын

    Hopefully it was a bit clearer?

  • @MinSredMash
    @MinSredMash3 жыл бұрын

    Do you know if there is some sensitivity difference between alpha and beta mode? When I measure Beta (but with the metal cover on) I get around 9 cpm, but when measuring Alpha (cover also on) I get over 20 cpm. Seems weird, since you would think that a count is a count, regardless of the software settings.

  • @SurvivingTheApocalypse

    @SurvivingTheApocalypse

    3 жыл бұрын

    Its not something I have ever noticed but I can test it in a future video.

  • @MinSredMash

    @MinSredMash

    3 жыл бұрын

    @@SurvivingTheApocalypse I just looked back through like 10 of my logs, and every background measurement falls into that same range: 9 for beta and 20 for alpha. Maybe it counts a different surface area of sensor for some reason?

  • @RadiumMarshmallows
    @RadiumMarshmallows2 жыл бұрын

    how do I access the gamma spectrogram on the application? (PC)

  • @Ihab.A
    @Ihab.A3 жыл бұрын

    Great review. Question: Would this counter detect Radon in my basement? What would be the best way or the best affordable device to detect radon? I have a budget of around 300 euros. Thanks

  • @SurvivingTheApocalypse

    @SurvivingTheApocalypse

    3 жыл бұрын

    No, you would need to get a proper Radon detector. The commercial grade meters do work but will not be totally accurate. If your worried about it then I would arrange for a professional survey to be carried out.

  • @Ihab.A

    @Ihab.A

    3 жыл бұрын

    @@SurvivingTheApocalypse Thanks for replying, I live in Italy and I have a feeling that you can't organize a professional readings unless you are in contact with local authorities or professionals here in my country. I live near the edges of a dormant volcano and there are some places here that the authorities won't let you construct building because of Radon. I became interested in measuring radioactivity because since the COVID crisis I started working as smart working from the basement. With my GMC-600+ I get readings of around 300 CPM while in my house the average is 75 CPM, hence my doubt. If money was no issue, I'd buy a Radon counter and a GMC counter, but my budget is limited. I kindly ask you what would be the best affordable Radon counter as well as the best affordable GMC counter to play with and keep as well. Thank you for your prompt reply

  • @Ihab.A

    @Ihab.A

    3 жыл бұрын

    @@SurvivingTheApocalypse If you are to chose between Radiascan 701A and Mazur PRM, which one would you chose?

  • @SurvivingTheApocalypse

    @SurvivingTheApocalypse

    3 жыл бұрын

    Never used a Mazur but I have read good things about them. Expensive doesn’t always mean quality. I think the Radiascan is too expensive for what you get, the build quality leaves a lot to be desired.

  • @Ihab.A

    @Ihab.A

    3 жыл бұрын

    @@SurvivingTheApocalypse Well, Mazur, Radiscan, and GMC-600+, all use LND-7317 GM pancake tube, so as for the sensitivity they should be all equal. It is the software and firmware in combination with the settings on the deceive that makes them more accurate, not to mention the nice-to-have features like software, online logging, Wi-Fi, and simplicity, and above all the price. I have a GMC-600+ but it is giving me some errant readings according to GeigerLog algorithm, so I'm thinking of replacing it with a more accurate device

  • @StormsparkPegasus
    @StormsparkPegasus3 жыл бұрын

    Can this thing detect x-rays too? I assume it can...anything that can detect the other 3 should be able to.

  • @SurvivingTheApocalypse

    @SurvivingTheApocalypse

    3 жыл бұрын

    It does yes.

  • @StormsparkPegasus

    @StormsparkPegasus

    3 жыл бұрын

    @@SurvivingTheApocalypse Ok cool, I'm sold. I was debating between this and the GCA-07W. But I was seeing a lot of comments on the 07W saying it was poorly built, and that the probe was flimsy and breaks. I believe that all general purpose geiger counters should be designed to detect alpha, unless they are specialized ones used in an environment where alpha never needs to be detected...there have been a lot of cases of contamination where the only instruments available could not detect it, and specialized instruments had to be brought in. The poisoning of Alexander Litvinenko is a great example. None of the counters they had were able to detect alpha, and the source was polonium-210 so everything was completely blind to it, resulting in widespread contamination lingering for a lot longer than it should have.

  • @SurvivingTheApocalypse

    @SurvivingTheApocalypse

    3 жыл бұрын

    Interesting that you mentioned Alexander Litvinenko.... most NHS hospitals in the UK have as part of their nuclear response kit, a meter capable of detecting Alpha contamination - I happen to own one. Its made by a company called ROTEM and it’s the ‘Ram Gene’, you should watch the video I made on it a couple of months ago.

  • @SOVIET_NIET
    @SOVIET_NIET Жыл бұрын

    gq gmc 600 plus or radiascan 701a which is better for me to buy

  • @sv1201

    @sv1201

    11 ай бұрын

    Depends. 600+ has a better tube from LND, 701A has a better design and software. There were some reported problems with quality of 701A's display, but they should be fixed by now.

  • @StormsparkPegasus
    @StormsparkPegasus3 жыл бұрын

    I know a bit about the fundamentals of radiation, the types, the dangers of each, etc...but I am a bit of a novice when it comes to actually using a geiger counter. I'm actually a bit confused about something. I have this same counter, and I have a "radioactive red" Fiestaware plate (based on my observations I believe it is one of the natural uranium ones made between 1936-1942, because it is putting out too much beta to be purely depleted uranium like the ones made from 1959-1972). The back cover of this device can be put in two orientations. With a metal plate, which should block alpha + beta (only measuring gamma) and without the metal plate, which should only block alpha (measuring beta + gamma). Normal background radiation where I am is 0.09-0.1 microsieverts per hour (cover on, so only measuring gamma). Getting a reading of my plate with the cover blocking all but gamma, it is around 0.8 microsieverts per hour. About what's expected, significantly higher than normal background, but those plates shouldn't be putting out a whole lot of gamma so it's not really high. Putting the cover in the other orientation (so the metal plate is no longer blocking beta), the plate gives me around 8 microsieverts per hour (this is what made me think it's natural uranium). With the cover completely removed, it's around 50 microsieverts per hour, but i have to set it right on the plate to get that reading. I'm estimating the amount of alpha it's putting out is around 40 microsieverts per hour (estimated, close enough). This is pretty consistent with the amount of U-238 in these, so it's what I was expecting. What I was not expecting though...I've always been told alpha can be stopped by a sheet of paper. The plastic cover of the device, even without the metal plate, blocks it. But a sheet of paper doesn't do anything at all, I'm still reading around 50 even with paper there. I had to get an instruction manual several mm thick to get the reading back down to around 8/hr with the cover off. So I'm confused...either alpha is a lot more penetrating than I was always told, this device is just REALLY REALLY sensitive, or it's mostly beta (which is very inconsistent with both the material the plate contains and the fact that a thin plastic cover with no metal plate will not block beta). The majority of what I'm detecting is definitely alpha, I'm just curious why I'm getting so high of a reading with things like paper in the way. I put the device in both gamma and search modes to get these readings. (The alpha and beta modes are for measuring flux levels over a period of time. From what I understand, the gamma mode just gives the "live" radiation level, and a geiger counter cannot actually distinguish between the 3 types anyway, it only knows if it gets a count or not (the alpha/beta modes require getting a reading of everything else to establish the background so it can subtract it).

  • @SurvivingTheApocalypse

    @SurvivingTheApocalypse

    3 жыл бұрын

    Short answer is the plastic on the removable shield is far too thick and it blocks quite a lot of soft Beta particles. Long answer will have to be made in a video! Thank you for giving me a subject matter!

  • @StormsparkPegasus

    @StormsparkPegasus

    3 жыл бұрын

    @@SurvivingTheApocalypse Ah interesting...but if the sheet of paper isn't making any difference, that would mean there isn't much alpha. But the glazing is still mostly U-238 which is an alpha emitter. There really shouldn't be THAT much beta coming off of this plate. I am thinking of getting a pure alpha check source to test this thing, but I know it can detect alpha, I've seen it in various videos. What kind of luck have you had getting it to detect alpha alone?

  • @SurvivingTheApocalypse

    @SurvivingTheApocalypse

    3 жыл бұрын

    I have some Americium from inside a few smoke detectors and they are massive Alpha emitters. The Radiascan copes perfectly fine with them and a piece of A4 paper on top of them blocks all the Alpha. Sounds like your piece of pottery is mostly Soft and Hard Beta with a touch of Gamma thrown in.

  • @StormsparkPegasus

    @StormsparkPegasus

    3 жыл бұрын

    @@SurvivingTheApocalypse Yeah, I think you're right. I actually just had a eureka moment with regard to my plate. I was thinking, it definitely has U-238, which is an alpha emitter, so why am I not really detecting any alpha. The uranium is sealed into the glazing. The alpha can't penetrate the glazing to leave the plate so there's not any way to detect it. You need an alpha source free of any obstructions to detect it. Now I kinda feel dumb for ever thinking I'd be able to detect alpha from one of those plates.

  • @SurvivingTheApocalypse

    @SurvivingTheApocalypse

    3 жыл бұрын

    Its all about experimenting and learning.

  • @TheXone7
    @TheXone7 Жыл бұрын

    Seems like 701A is no longer available, only Radiacode 101...so sad.

  • @kwinzman

    @kwinzman

    Жыл бұрын

    Might have something to do with a certain war.

  • @filteredview9302
    @filteredview9302 Жыл бұрын

    "3:30" Hmm are you sure? All Geiger counters are calibrated based on size/surface area and sensitivity to match the Sievert unit. maybe you get what I mean, if you compare it to the Radiacode, which picks up more particles, But shows a lower reading comparatively.

  • @moahmedhashim9881
    @moahmedhashim98812 жыл бұрын

    Is the battery that is supplied with the unit rechargeable?

  • @SurvivingTheApocalypse

    @SurvivingTheApocalypse

    2 жыл бұрын

    No, but you can replace them with rechargeable ones if you like and there is an option in the settings.

  • @moahmedhashim9881

    @moahmedhashim9881

    2 жыл бұрын

    Is 2 sieverts of radiation fine?

  • @SurvivingTheApocalypse

    @SurvivingTheApocalypse

    2 жыл бұрын

    No, that is extremely dangerous. Exposure to 3.5 Sieverts would kill you in roughly 50-60 days, so 2 Sieverts could also kill you or seriously increase your risk of cancer.

  • @moahmedhashim9881

    @moahmedhashim9881

    2 жыл бұрын

    How can I contain the radiation then?

  • @moahmedhashim9881

    @moahmedhashim9881

    2 жыл бұрын

    Nvm it’s not sieverts it’s millisieverts

  • @sonyxperiasmk
    @sonyxperiasmk3 жыл бұрын

    If you are not satisfied with the GQ Software you should try GEIGERLOG by Ullix

  • @MinSredMash
    @MinSredMash2 жыл бұрын

    Hello! Have you ever measured an Americium button (~1 uCi) from a smoke detector? I have measured them at around 40 cps, which seems strangely low for a supposedly alpha sensitive device. You can see what I mean here: kzread.info/dash/bejne/ZGhsqJixfZO4adY.html

  • @SurvivingTheApocalypse

    @SurvivingTheApocalypse

    2 жыл бұрын

    I have tested a couple yes. All show very high readings. I will take a look at your video now.

  • @velimattiollilainen
    @velimattiollilainen10 ай бұрын

    The meter and its hardware is well-done and it is very versatile in this price category. The mica sensor enables the measurement of alpha radiation and also the weak beta radiation from carbon-14 (156 keV, mean energy being 49 keV). Same does not apply with the software. Software seems/could include several nice features but they are NOT WORKING, such as data logging in WIN10. Support tried to solvent the problems with no success. After Russia started illegal war in Ukraine, the support disappeared totally and never came back. Therefore I cannot recommend this meter untill they correct the software, While waiting this, spend your money to some other meter which will have a proper support.

  • @samuelhufschmid70882

    @samuelhufschmid70882

    8 ай бұрын

    Vous êtes juriste ?

  • @jonnash5196
    @jonnash51962 жыл бұрын

    Is Anyone else nervous about putting software from Russia on your phone ? 🙄

  • @SurvivingTheApocalypse

    @SurvivingTheApocalypse

    2 жыл бұрын

    No more nervous than putting software on my phone from America.

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