Radiation Alarm
The application has three thresholds (states) of the levels of radiation:
--> There is no radiation. Radiation is not detected. you are safeApplication indicates that there is no radiation if it can't register any traces left by gamma quanta. This state also occurs in the beginning of measurement. Wait for a few minutes to be sure that you are safe.
--> Low radiation level is detectedApplication detected a low radiation level
- up to about 10-20 uSv/h (according to measurement carried out on SE Xperia Neo V and Lenovo IdeaPad). The level of radiation isn't dangerous but it's strongly recommended to continue carrying out the measurement for next a few minutes to be sure if there is no more serious problem. And you should think about the source of this radiation.
With some devices it is also possible to detect cosmic radiation during flight by airplane (on altitudes higher than 10 km).
--> Radiation hazardYou should run away. The threshold for this stage is about 100-150 uSv/h. Make sure that you didn't uncover your camera during all the measurement. Repeat the measurement and call the local authorities. It is really serious situation but don't panic
- everything will be ok!
The application was calibrated using Cs-137 ionizing radiation source in the Institute of Nuclear Physics, Polish Academy of Sciences in Cracow, Poland. Cs-137 is one of the most dangerous isotope contaminating environment during nuclear accidents (e.g. in nuclear power plants etc.).
How to use the app (the instruction is also shown to the user on the first run):
1st step:Cover main camera in your device using e.g. a piece of black tape. You MUST cut off visible light completely!
2nd step:Run the application, read the instruction again, scroll down and push "Calibrate" button. The app will ask you if you prefer fast or accurate calibration. Of course the second one is recommended. Remember! During the calibration your device must NOT be exposed to higher (than normal background) level of ionizing radiation!
3rd step:Your device and application is ready to detect ionizing radiation. During the measurement your camera must be covered by a piece of black tape. But after measurement you can uncover it and take pictures normally.
WARNING! The authors of the application put as much effort as they could to make the application the best. But there is no guarantee that application will work properly, won't damage your device and will be able to detect ionizing radiation properly.
The application is available for free, but it will be very kind of you if you could send me the report of successful radiation measurement. All information will be very helpful to improve the application!
Category : Tools
Reviews (27)
I'm giving five stars because the idea is brilliant, read previous comments and some look unfair. It simms to me a lot of the problem is not understanding and also poor equipment. All one needs to do is temporarily cover up the camera lens before any testing. Unfortunately I don't have access to a nucliar power station to test it but when I do I will report back. Thanks for the up
On paper, the theory sounds believable.. but in practice not so.. Tried what the dev has suggested but results were very much a hit n miss. Am not radiation expert but perhaps, the dev could suggest some house hold items that we can try this app on that would garner real results. Anyway, great attempt.
If you are one of the people who said that light is a radiation hazard from the app, that is because you don't know what directions are. The directions the app has in the beginning is STEP 1: OBSCURE YOUR CAMERA. That means you cover up your camera so then the alarm won't be able to detect solar radiation. So next time you give a bad review, then read the directions properly so you have all the information to make sure everything works right (along with that the app works well)
Needs a means by which the user can control the calibration from a natural source e.g. Watch face, or alpha particles from a smoke detector? It also needs a dynamic display of what is being counted as it sums. (Then there is the lack of stipulation which phone camera, which needs to be covered with Alfoil, not just black tape).
Nice app but sorry I tried it twice at the moment in the same place and it didn't give me same resultšunfortunately.
You will get a false positive without covering the camera from light during testing as well as calibration. There is a metal semiconductor microchip in the camera that can pick up on gamma radiation, but light radiation needs to be filtered out. What units does the "sum" reading measure in?
wont calibrate and I have black tape over camera. the calibrate processes yellow bar will not move waited and waited nothing. I believe your process to detect radiation is correct though keep trying on the software. I am NOT uninstalling because I want to see how your app progresses because radiation should be detectable I think by the no light process. phone htc one
3/3. No.1 radiaton detection app choice choice. Loved it. And also, there should be a customizable (can be renamed, annotated, & etc.) history of detected radiation (max, average, & min detected radiation) that could be sent back to you. You should provide an email address for lengthy reports, suggestions, & etc. like this to to be more exclussive. Strongly recommended to everyone. Thank you very much.
Radiation is when heat is given off a object. It can also be measured in uv lights LIKE THE ONES THE SUN GIVES OFF
I really want to be able to use this app. I know it is possible to measure radiation using the camera on my phone but. There is no instruction on how to use the app. The person who has made this is an idiot, you cannot assume that people can understand how to use this without instructions. You show a bullsh!t video of a phone registering rads in front of a massive source but nothing else. This app really should and could be one of the best available BUT, because you are an idiot the app is a total failiure
This has to be the coolest app yet. Ignore the crummy reviews. Most of these are from people who didn't read the developers detailed instructions on this page. I tested with a natural Uranium source and got about 14-20 counts. Fantastic!
Till now it seems a good app but during calibration do we need to cover both the cameras..or only back camera
I think there is something wrong with mine cause the warning sign for high radiation showed on my screen and the number was higher than 2 000 000. Really dont think thats right.
This app only detects radiation from light bulbs or the sun. If I have the lights on it detects high levels of radiation, if the lights are off then no radiation is detected. I had it close to some radon paint and nothing was detected.
Made by geeks. For geeks. Uses the camera to detect radiation. Any light will be picked up. Make sure the camera is covered completely before starting it. If it detects a white pixel anyways, it counts the amount of pixels that are white. Each pixel is a beta ray interfering with the camera.
I have worked in nuclear power plants for 25 years. I had my doubts, but this really does work at levels around 3 millirem/hr on my phone. Would love to see some enhancements, but great app!
I went into VA for Xrays. Room was very dark. I held my thumb over camera lense. Numbers stopped counting. After xray numbers.had increased.
Would be nice if an option exists that allows to app to run continuously in background for when visiting places like Japan or China.
I thought "It's just another prank one" until I walked over to my microwave to get my pizza when I saw a radiation symonble and it was in a yellow tint and backround. So I said to my self "It actually works!"
My uncle asked me if I wanted to come to work with him, he works as a technician at a nuclear power plant, I held my phone up to a small rod of plutonium-237 and it read not radioactive
Does not show a specified level of radiation, it only adds the amount detected collectively increasing the total sum. It would be better if the level of radiation was noted with the total sum.
Tested the same device got a 148 first time then tested it 4 more times and got a 48 every thing I tested came out as a 48 no way that's right camera was covered the whole time
It basically said I live In a nuclear reactor and unless I don't know it there is no radiated objects except my microwave which happened to be like 19 meters away
Actually works! Tested with delta 880 Ir192 and spec 300 Co60 cameras. Readings were fairly quick from none to low to high. Would be great if app could translate bright pixels to actual units uSv
Really cool idea! People really need to read the instructions before giving this bad reviews haha
Look at the video, when the radiation producer turned on, white pixels appeared on the camera! Can anyone confirm my observation and explain it? Thanks! Great app!
It's intellectually offensive how many idiots fail at basic instruction reading, the kind of skills you pick up in the first grade. Read how to use this app before giving it a bad rating because it works exactly the way the devs say it works. The only complaint I have is that it takes an awkward two minutes to calibrate before its useful. But its still useful in the end.