This is a real working radioactivity counter. You only need a BLACK TAPE to cover the lenses !!
Disclaimer: The type of radiation picked up by the camera can be dangerous/detrimental to the user's health as well as cause damage to the device.
Its NOT a JOKE! The App is using the camera sensor to detect radiation, like a geiger mueller counter, of course with a smaller area. We tested several mobile phones at the Helmholtz research facility in Munich, using a professional radiation device in the range of 2-10 µGy/h till 1-10 Gy/h (CS137 and CO60). The CMOS sensors can detect primary gamma radiation and some higher beta radiation (depends on the shieldings in the mobile phone). Typically not going into saturation as most GM tubes. See FAQ on our homepage for what you can measure and how.
PLEASE SEND US FEEDBACK via EMAIL !! We add new devices in short intervals.
Attention: the tape must shield the light completely. Please check with a light source !
On our homepage you find several measurement result for different devices we tested so far. Some are excellent, some not that sensitive.
Feel free to use our table to assign radiation values to our counter measurements when you have the same device.
The real values might differ as sensors can change. There we need your help and the help of the manufactures for a future calibration service.
You can use the contact button in the help menu to provide us with feedback and please use it.
If you need any help, PLEASE send us an email. We have cannot answer the comment section below, so please ask us first on measurment problems. We help as fast as possible. Please contact us on any problems you have with this application! Look at our videos, more are comming soon. Attention: The counts per minute (CPM) for the background noise should be low (increase the noise setting if not). This is camera noise not radiation noise basically. If the radiation increases then also counts from the radiation adds to the CPM values (see our tables for the sensitivity). If you have a phone with 200 CPM for 100 uGy/h then the background noise produces for 100 nGy/h only 0.1 CPM. That means in 10 minutes ONE counts in 100 minute TEN counts adding to the CPM0 (noise of sensor). So you need a LONG time to measure for low radiation values on this device. Attention: AM241 (smoke detectors) only emit ALPHA rays, they get stuck in the plastic of the phones. H3 (tritium - watches etc) are beta emitters with 45 keV. They also get stuck quickly, mainly already in the watches. K40 (KCL for example contains 16 Bq/g) are beta emitters with small amount of gamma (due to positron collisions)- you need also a long integration time to measure them. Same for TH rods (2% Thorium) mainly alpha rays, then beta and some gamma. Very small diameter ! You need a large area to detect them (best GM with mica windows). The CMOS sensor of the camera only has 2mmx2mm.
Good objects are TH lenses (up to 30% TH232), pitchblend (gamma of decay products) and CS137 for checking food which might be contaminated (if larger 1 uSv/h). Don't experiment with radiation sources !!!
* saving raw counter values in 3 different noise levels
* saving temperature data
* saving location (optional)
* saving settings data
* export by email (CSV) or file, CSV / HTML
* export of mean values in Counts + standarddeviation
* unit converter (Sievert, Gray, Rem...)
We just released a comprehensive help on our homepage --
Important you NOISE value should be similar as in our tables, if it is too high check the tape to cover the lense - use multiple tapes if necessary and start calibration again !!! Please before writting a bad one star comment write us we will help you very quickly PLEASE !!!
more videos on our homepage -
instruction and help:
The most important part for the detection of the radioactivity is the camera chip of the smartphone. During the measument absolutely no incident light is allowed for the camera. Therefore the camera lens must be sealed e.g. by a black insulating tape. Of course you can keep the lens shut by your finger, but sometimes a little light shines through the fingers. In this case use at least additionally a cloth to shut the lens.
First calibrate the radioactivity-meter for your smartphone-hardware:
a) Fix the zero point where no radioactivity is caught by the smartphone. The zero point must be fixed at the lowest temperature of all future measurements.
b) Measure the radioactivity at a place, where the current radioactivity is known and assign this known gauge value and its unit to the value, measured by your smartphone to establish a relation between the internal hardware-dependent values of the smartphone and the real absolute quantity of radioactivity. The more exact the calibration and the higher the gauge value, the better the measurement results. From then on your radioactivity-meter is able to indicate the current radioactivity.
Due to the different hardware of the various smartphones we cannot ensure, that Radioactivity-Meter works on all smartphones with sufficient accuracy.
Since Radioactivity-Meter uses statistical algorithms to calculate the stochastic noise processes, the measuring situations should be always as similar as possible to avoid deviations of the metered values: same ambient temperature (without the zero point fixing), same up time of the smartphone, same method for sealing the camera lens etc. For this reason only single measurements are possible, no continuous measurements.
That way you can use your smartphone to determine at least the tendency for the changes of the radioactivity radiation.
SPITCONSULT expressly disclaims any warranty for its software products. The software products are provided 'As Is' without any express or implied warranty of any kind, including but not limited to any warranties of merchantability, noninfringement, or fitness of a particular purpose. SPITCONSULT does not warrant or assume responsibility for the accuracy or completeness of any information, text, graphics, links or other items contained within the software products. SPITCONSULT makes no warranties respecting any harm that may be caused by the transmission of a computer virus, worm, time bomb, logic bomb, or other such computer program. SPITCONSULT further expressly disclaims any warranty or representation to Authorized Users or to any third party.
LIMITATION OF LIABILITY
In no event shall SPITCONSULT be liable for any damages (including, without limitation, personal injury, lost profits, business interruption, or lost information) rising out of 'Authorized Users' use of or inability to use the software products, even if SPITCONSULT has been advised of the possibility of such damages. In no event will SPITCONSULT be liable for loss of data or for indirect, special, incidental, consequential (including lost profit), or other damages based in contract, tort or otherwise. SPITCONSULT shall have no liability with respect to the content of the software products or any part thereof, including but not limited to errors or omissions contained therein, libel, infringements of rights of publicity, privacy, trademark rights, business interruption, personal injury, loss of privacy, moral rights or the disclosure of confidential information.
Keywords: Geiger counter,Radioactivity,Radiation Detection
But is this radiation harmful?
This application measures the WiFi electromagnetic radiation in approximation, and given the selected limits, it informs you if your environment could be considered harmful or not.
- WiFi Radiation meter
- Show the proportion of Radiation emitted by the several wireless devices around
- Create projects and save the Radiation measurements with your geo location
- Project them on Google Maps
Special thanks to Konstantinos Chalkias!
* The radiation amount is calculated by approximation of only the available wireless access points, and may be affected by the strength of your device's antenna.
--- Noise Reduction Algorithm. Higher Sensitivity than Other Camera Based Radiation Detection Apps.
--- Runs and Alarms in Background.
--- Displays Results in Widget
We have searched for an application that uses the phone's camera to detect radiation and that protects the user continuously. After downloading all the applications we could find, as of May 2014, it was clear that such an application wasn't available. While some applications were able to detect high levels of radiation, most were unable to effectively resolve smaller radiation fields from background radiation levels. None of the applications were suitable for continuous monitoring as the user went about their normal routine; all applications had to be running in the foreground with the screen on to operate.
So, we decided to write our own app, and GammaGuard is the result!
Our GammaGuard Android application can run continuously in the background and will alarm if you are in an area with high radiation levels.
The current radiation level is displayed in a widget, making this information available to the user without having to re-open the app.
GammaGuard employs your cellphone's camera to detect ionizing radiation. To use, simply cover your camera lens and start the application!
To reduce background noise, GammaGuard uses an advanced algorithm that identifies noise events and excludes them from the analysis.
What to Expect:
GammaGuard reads the brightness of the camera's pixels and compares that value to a threshold. When radiation interacts with the camera, some pixels will be bright, even when the camera is covered. To discern light sources from radiation sources, no light must be allowed to enter the camera while GammaGuard is measuring. The easiest way to keep the camera dark is with a couple of strips of electrical tape. We will also sell protective cases with built-in shutters for the most popular phone models, starting in the spring of 2015.
The sensitivity of any radiation detector is related to its volume. The solid state cameras in phones are quite small. Consequently, at background radiation levels, gamma rays will interact with the camera infrequently. All radiation detector apps that use the phone's camera are subject to this limitation. Any app that claims to be able to detect the radiation from the potassium in a banana is probably fake.
Depending on where you live, the size of your phone's camera, how many frames per second are analyzed, etc., you can expect anywhere from a few counts per hour, at background, to a few hours between counts. Every day objects, such as radium dial watches or thoriated TIG welding rods emit radiation fields 10 to 100 times background. When measuring these objects, one can expect a count every few seconds or minutes. Similarly, the radiation level in an air plane at 30,000 feet is around 30 times background. GammaGuard can easily detect these radiation fields.
While the low sensitivity of camera based radiation detectors is a limitation when measuring low levels of radiation, it is a huge advantage for protecting the user from high radiation levels. Many expensive and sensitive radiation detectors will saturate and become useless in very high radiation fields. Over exposures have occurred while using these detectors because workers responding to radiation incidents were given a false sense of security. Camera based radiation detectors do not saturate in high radiation fields, making them ideal for use by First Responders.
GammaGuard performs a lot of calculations. As a result, the buttons can be somewhat sluggish. Please be patient! The idea of GammaGuard is that you set it up once and then let it run continuously in the background without having to interact with it.
For a more detailed description of the application, please visit the developer website listed below.
－ Radi PA-1100で測定したデータをBluetooth通信で取得します。
－ このアプリは、Radi PA-1100とのBluetooth通信をシリアルポートプロファイル（SPP）で通信します。SPPをサポートしている端末でご使用ください。
－ あらかじめ通信相手となるRadi PA-1100との間にペアリング（相互認証）を行なってください。
－ 以下のHORIBA Webサイトにて、通信機能確認済端末リストをご確認の上、ご使用ください。
This time, I released the app to show current location on a map the distance from the nuclear power plant in Fukushima, Japan. In addition to on the map shows evacuation radius and the direction of the wind and radiation levels (Unit of radiation is "micro Sv/h") .
Ver 4.2.0 : Add a function of Radiation graph.
Ver 4.1.0 : Speed up the map.
Ver 4.0.0 : Radiation corresponds to the site provides information of the Ministry of Education was revised in April 2012. Renewal application.
Ver 3.0.0 : Add a function to automatically update. Change the look of graph information.
Ver.2.12.0 : Add a function of Balloon-speed switching.
Ver.2.11.0 : Prepare an emergency evacuation of the area cleared (9/30).
Ver.2.10.0 : Change the graph of the map.
Ver.2.9.0 : Fukushima radiation data, change data in the The Ministry of Education.
Ver.2.8.0 : Add a new type of home screen widgets. To view any of the points.
Ver.2.7.0 : Home screen widgets support.
Ver.2.6.0 : Added a function of display information in a balloon when you tap a point.
Ver 2.5.0 : Add a function of display information in a graph of radiation in the past.
Ver 2.4.0 : Update planned evacuation zone. Change Information List of radiation. Add a satellite photo display mode.
Ver 2.3.0 : Add a function to share the current state.
Ver 2.2.0 : Add a function of the bar graph displays the radiation dose on the map.
Ver 2.1.0 : Add a function of view of planned evacuation zone.
Ver 2.0.0 : View point expanded all over the country.
Ver 1.5.0 : Add a function of the list of values of radiation.
Ver 1.4.0 : Add a function of view of predictions SPEEDI.
Ver 1.3.0 : Add a function of view of radiation.
Ver 1.2.0 : Add a function of view of wind direction.
Ver 1.1.0 : Add a function of view of distances from where you tapped.
Ver 1.0.0 : New Release.
Accuracy of the information displayed is not guaranteed. Please use only for reference.
Tap the bottom right button, move the screen. If you choose the settings menu, go to the screen configuration changes. Evacuation radius, and, GPS refresh rate (the refresh rate to update the distance) can be set.
Finally, I have respect for people working near nuclear power plants. And I pray for your safety.
Geiger, Radiation, Radioactivity
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