We are often asked to compare the dosimeters Atom Simple and Atom Tag (SBM-20), Atom Mini2 and Atom Start (SBM-10), Atom Swift and Atom Fast (scintillator) with similar radiation dosimeters from other manufacturers. We fulfill this request.
We speak english.
1. Our devices are not equal in the measurement speed to acceptable reliability (15% of the statistical error).
First of all, this concerns dosimeters with gas-discharge sensors SBM-20: Atom Simple and Atom Tag.
We will not ship you with popular mathematics, but if you really want to learn more in an adult way, read about the three sigma boundary in the theory of normal distribution.
This means that Atom dosimeters need less time to get an acceptable accuracy (less than 15% of the statistical error).
Our dosimeters with SBM-20 sensors need from 2:15 to 4:00 minutes (an average of 3 minutes with 45 event logs) to measure the background value of dose rate at 9-10 mR/h.
In case of higher radiation values our devices reach this 15% error threshold even faster.
Measuring speed of background value is actual parameter that appears to be the main subject of speculation among dosimeter vendors.
On some sites one can see statements declaring that with the help of the SBM-20 sensor the process of measurement could take 10 seconds without specifying at what dose rate this measurement speed is reached and also without indicating a statistical error.
If we are talking about values of 9-20 mR/h, then such speed is pecular to scintillation detectors, but not to SBM-20 sensors.
15% accuracy is a reachable value for many dosimeters. The question is, how much time they will spend on it?
The sensitivity of the Atom Swift and Atom Fast 4735 scintillation dosimeters is about 25 times higher than the SBM-20. As rough estimate, you can multiply 10 seconds of the scintillator by 25. You'll get approximately 4 minutes.
1.1. Our "Atom" dosimeters have no equal in their possibility to refine the measurement result at any point of the accessible range of dose rates to acceptable accuracy for as long as the experimental conditions require.
However low could be radioactivity of the material or foodstuff over natural background, it's always possible to measure this small activity being at rest (motionless) relative to the Earth.
In the Measurement mode you can refine the ionizing radiation dose rate indefinitely, thereby reducing the statistical error to acceptable values to see low activity.
There should be a short video in which the dosimeter readings are compared with different types of sensors when analyzing food in the Measurement mode ХХХХХссылкаХХХХ
1.2. Our "Atom" dosimeters with gas-discharge sensors SBM-20 and SBM-10 have no equal in sensitivity to very weak beta radiation in the express analysis of food products for the content of Strontium-90 when using Search mode.
Here will be several videos to show the response of sensors SBM-20 and SBM-10 in the Search mode in comparison with scintillation dosimeters. Including the video of the dosimeters Atom Start and Atom Mini2 when they work at the same time ХХХХХссылкаХХХХХХ.
2. Our devices have no equal in speed of reaction to changes in dose rate.
In fact, our dosimeters can be used as radiation locators, alarms, radio scanners and radiation pagers.
Here's an interesting video where Atom Fast dosimeter and FBI radiation pager compete with each other.
This means that after hitting the environment with higher radiation values, the Atom dosimeters will let you know about this much more quickly.
To assess material radioactivity, our device with SBM-20 sensor needs a maximum of 5-7 seconds for a power level of 60-80 mR/h and for values beyond 100 mR/h - 1-2 seconds at all. This assessment can be made visually, audially or tactilely through vibration (see paragraph 6 below).
To assess material radioactivity, our device with SBM-10 sensor needs a maximum of 15-17 seconds for a power level of 60-80 mR/h and 1-2 seconds for values beyond 100 mR/h.
To assess material radioactivity, our device with scintillation electromagnetic effect needs a maximum of 2 seconds for a power level of 60-80 mR/h. The assessment of values that go beyond 100 mkR/h occurs instantly.
It's worth mentioning that minimum speed of detection rates for power changes are limited to a two-second period of the communication session via the bluetooth channel.
Sound and vibration response for power measurement are take place even faster than the response on smartphone screen.
Atom dosimeters work together with smartphones and tablet-PCs through a special application.
These applications can be easily used by people who are not versed in the topic.
The application screen contains a lot of digital and visual information, allowing you to make a rapid assessment of the situation without special knowledge.
It's easy to check our leadiship in this regard into Google Play and Itunes among similar applications.
4. Of course, for this speed of measuring the dose rate, we had to "pay" something.
Atom dosimeters need up to 30 seconds (for SBM-20 sensors) and less than 15 seconds (for scintillators) to "calm down" after measuring values which are above background.
This means that when you leave the hazardous area and radiation level (dose rate) starts to fall, the device can still show the "old" higher value for the first 15-30 seconds.
5. Disadvantages or how to look at it:
Snobs chide us for the lack of a metal "screen".
Our devices don't have a special screen for cutting off beta radiation flux. Though at the household level this function is not necesary in our opinion.
On a professional level, This screen can be easily organized from improvised means. A stream of beta radiation is stopped by metal plate.
We doubt that people who are not on the topic would check this screen when revising potential radiation sources.
The dosimeter's readings will be higher without a screen at distances from 0 to 15 cm, which means that even newbie should not be when using our device.
6. Special standalone modes of our dosimeters.
6.1. The vibrating shell of our dosimeter gives the hand an excellent response. Dosimeter reacts with intensity of vibration to changes in the dose rate. This feature is implemented in the Atom Tag and Atom Fast models.
6.2. In standalone mode dosimeter can be customized by easy hand gestures. This feature is implemented in the Atom Swift model.
7. Usually stupid things about dosimeters is written by distributors on their websites.
Developers are usually very consistent in assessments on their official sites.
Another question is, which sites are considered to be official websites of developers.
Rays of goodness to all dosimeter developers.
All info about the accuracy of dosimeters - as easy as pie.
PS: More video and photo materials will be here later.
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