Gamma Scout Modell 2018
- big storage 256 kbyte (instead 1 kbyte)
- CPS (instead Bq) button
- 3 digits behind the decimal point (instead 2)
GAMMA SCOUT - BASIC - Geiger counter - radiation gauge
- easy to operate
- usable anywhere
- collects data around the clock
- connectable to PC incl. ?Toolbox? software
Functions and Features (all models)
Large range of calbration:
In measuring mode, the display shows the current radiation measurement reading.
The display also temporarily shows the average H of the last day (24h, 12 am to 12 am).
GAMMA-SCOUT® is calibrated across a wide scale (0.01 up to 5000.00 µSv/h).
Each GAMMA-SCOUT® radiation meter is subjected to a final test. This test is supervised by
the Institute of Radiation Protection; a government controlled university for Applied Technology.
The tested device must be in a confidence interval of 5% in comparison to a master.
This master is adjusted to a gauged reference Cs-137 emitter.
Reference Isotope Not Equal to Cs-137:
The conversion from impulses per time into the dose rate is based on Cs-137. If other isotopes
are present, the impulses per time can be directly displayed, and can be converted by using
Dose Rate and Dose:
GAMMA-SCOUT® can be used as a dose meter (cumulative radiation).
Change Sievert to Rem:
The dose rate may be displayed in Sievert or Rem.
Energy-Saving Permanent Operation:
The GAMMA-SCOUT® monitors radiation day and night and logs data for later download.
Due to sophisticated electronics, its battery lasts for years. The model ?RECHARGEABLE? works
with a rechargeable battery.
GAMMA-SCOUT® stores all registered pulses in its internal memory and keeps them ready for you
to use when desired. 110,000 Readings: For constant monitoring of the environmental data, the interval
of data storage is set on a value of one per week. This equals 600 years of memory capacity.
The user can set up smaller intervals, which maxes out the memory capacity sooner.
To clear the memory content, see the manual.
GAMMA-SCOUT® meets all European CE standards as well as the
?FCC 15 standard? of the USA. GAMMA-SCOUT® may be carried on aircraft.
Liquid-crystal display (LCD), 4-digit, numeric with dimension,
End-window alpha-beta-gamma detector counting tube according to
from 4 MeV;
from 0.2 MeV
from 30 keV
a + ß + y
ß + y
AI foil approx. 0.1 mm, shields off a completely
Al shielding approx. 3 mm, Shielding off a completely
We recycle returned devices cost-free
Less than 10 microamperes under environmental radiation
256 Kbyte (110,000 data sets)
Length 163 mm x width 72 mm x height 30 mm
European CE standard, US-standard FCC-15
November, 2015 (Right of modification reserved)
Leading Gap - What makes Gamma-Scout superior in comparison to other Geiger counters?
There are a variety of Geiger counters available on the market today. What makes Gamma-Scout a superior product?
There are many reasons why, see features. Some of these features are emphasized below:
1. The core component of every Geiger counter is a Geiger-Müller counter tube. Among experts, the best known counter
tube of small dimensions is a product made in the USA (LND Incorporated). It is high-priced, but of high
quality. Gamma-Scout operates with this counter tube, which can also measure alpha radiation (e. g. radon gas/plutonium).
Lower-priced Geiger counters use counter tubes of lower quality and can only measure gamma radiation.
2. The health risks caused by increased radiation are particularly high for long-term exposure. This is the reason
why the Radiation Protection Ordinance does not feature short-term threshold values, but names
20 millisievert/year (=20,000 microsievert/year). For daily monitoring, it is practical to downscale the annual
value into an hourly value (to measure by minutes and seconds), but its main purpose is still to control the
cumulative value (cumulative dose). For this purpose, the device has to count and accumulate the values over
a long period of time, which is not possible if the Geiger counter only operates for an hour and is then
switched off. For continuous measurement, the battery needs to last for a long period of time. Therefore,
the device needs to have extremely low power consumption. The Gamma-Scout?s power consumption is so low
(approx. 10 microampere in basic operation mode) that the battery lasts for many years.
Physicists say that the determination of additional radiation exposure is only possible through long-term data
accumulation. Additional radiation exposure easily doubles people?s annual exposure
(from approx. 2 to 4 mSv/a) and occurs through, e.g., medical devices, flights (5 to 10 µSv/h, which is 25x to
50x higher than normal ambient radiation), and through vacations in higher altitudes or at
monazite-impregnated sand beaches.
To accomplish solid measurement results for these low radiation levels, the measurement time should be
at least several hours, or even better, several days.
3. Some users criticize that Gamma-Scout?s battery is not removable, but soldered to the device. There is a
good reason for this: With a removable battery, extremely low power consumption used by Gamma-Scout
would cause oxidized contacts , resulting in immediate contact interruption. This is why an uninterrupted
connection is indispensable.
4. The concept of Gamma-Scout, to operate with constant data accumulation, carries the important technical
advantage that semiconductors remain more stable in comparison to devices with operation interruptions.
5. There may be potential customers who are not interested in advanced features such as alpha radiation
measurement, data accumulation, impulse rate measurement, REM measurement, etc. Some people may
prefer a simple solution; a less sophisticated, lower priced (switch on, read, switch off) gadget. For these
potential customers, we have developed the Gamma-Easy - available at the lowest
price level one can offer for Geiger counters with reasonable measurement.
Average product review
Geiger Counter - General
If you own a Geiger counter, you will soon come across some terms that a Geiger counter owner has to deal with. There are complex relationships between the voltage activities to be measured and the properties of the respective device type. The following is a brief overview of the most important units involved in the topic of radioactivity. This way you can be sure that you interpret the numbers on the display correctly and then draw the right conclusions.
The unit of measurement Becquerel indicates how many atomic nuclei of a radioactive substance decay within a second. The half-life is the probability that an atomic nucleus will decay in the next second. If you want to determine the total activity of a substance, you multiply the amount of atomic nuclei that decay in one second by the number of atoms present.
The dose rate indicates how much energy is stored per unit of time in a defined quantity of substance. In order to describe the harmful potential of radioactivity, the pure activity information is not sufficient; it must also be stated how much energy is deposited per unit of time in a substance. The dose rate is measured in joules per kilogram and second.
In medicine, on the other hand, people are not only interested in the energy that is deposited in a substance in a time interval, but above all in the biological damage it causes to human tissue. Since different types of radiation with their different energy ranges have a different damaging potential, the dose rate is weighted by a biological factor. The result is the so-called equivalent dose rate, measured in Sievert per second (Sv/s). The higher the equivalent dose rate, the higher the tissue-damaging potential of radiation.
Since one sievert per second already corresponds to a very dangerous irradiation, the tissue-damaging potential is often indicated in microsievert per second (µSv/s). For longer stays in radiating areas the radiation exposure is also indicated in microsievert per hour (µSv/h).
If the dose rate is added up over a period of time, the dose is obtained. The dose is given in Gray or Sievert. A flight from Berlin to Los Angeles, for example, produces a dose of 50 to 100 microsievert (µSv), which corresponds approximately to the dose produced by an X-ray of the chest. According to the Federal Office for Radiation Protection, the total effective dose of X-ray examinations is 1.6 millisievert per person per year in Germany (mSv).
The annual dose for natural radiation in Germany is about 2 millisieverts per year (mSv/a). The annual dose can vary greatly for individual citizens, depending on their place of residence and lifestyle. The annual maximum dose for persons who are exposed to radioactive radiation in their profession is 20 millisieverts per year (mSv/a) in Germany. In the USA, the limit was set at 50 millisieverts per year (mSv/a). Even if the maximum annual dose here is quite high, it is worth keeping the annual dose as low as possible. General note: Always keep the exposure to radioactive radiation as low as possible; for the sake of your health!
A Geiger counter measures the number of radioactive decays of a substance. The value shown on the display is the higher the more decays a material produces. If the radiation meter has a ticker, the radiation intensity can even be made audible. The shorter the distances between the individual clicks, the higher the decay rate.
The most important component of a Geiger counter is the so-called Geiger-Müller counter tube. This consists of a metal shell, a cathode and an anode. The tube itself is filled with a gas (often inert gas). If the thin wire in the middle is now energized (500 volts or more), it can attract the electrons that are released when radioactive particles disintegrate. The contact of electrons with the inert gas of the Geiger-Müller counter tube makes the gas briefly conductive, thus closing the circuit. If the Geiger counter has a loudspeaker, a click sound is generated during this process.
In addition to the Geiger meters with Geiger-Müller counter tube, there are also models with semiconductor detectors. These models can not only determine the number of decays of a substance, but also the energy of the incident radiation. In addition, Geiger counters based on semiconductor technology have a very long service life and low energy consumption.
Gamma Scout Basic
Gamma Scout - General
You should choose a gamma scout if you want to be sure that your environment is free of ionizing radiation. Since the Gamma Scout detects even the smallest radiation values, you can use it to check all rooms in your house, apartment or workplace for radioactive contamination.
Even if you work in a company, research institution or public authority, the acquisition of a gamma-scouts is highly recommended. As soon as you or your employees are exposed to increased radioactive radiation, the Gamma Scout helps you to keep an eye on radiation exposure.
Private individuals as well as employees from companies, industry and authorities are interested in Gamma Scout. An important group of customers are, for example, government officials who take care of the security of the population. This includes police officers, the Technical Relief Agency and the fire brigade. Hospitals and research institutes also sometimes need meaningful data on whether and to what extent radiation exposure is present.
Among the private individuals who buy a Geiger counter, there are often craftsmen and hobby researchers. In addition, there are also people who assume that increased radiation levels can be found in their surroundings.
Yes, the Gamma Scout registers every change in background radiation. The measurements are highly accurate. The fluctuations in the measured values are less than 1 percent. This is the reason why the Gamma-Scout allows you to detect even the smallest changes in the radiation values in the soil, in your garden or in your house.
Since the instrument has a memory function, the values can be easily compared even after longer measurement series. You can transfer the measured values to a PC, where you can evaluate the data. An evaluation software is included with all Gamma Scout devices. An equally useful feature is the warning function of the gamma-scouts.
If the measured values exceed the maximum value you have specified, the Gamma Scout will alert you to this fact by means of a warning tone (this applies to all Gamma Scout models except the Gamma Scout Standard!).
The Gamma Scout displays the measurement data in micro sieverts per hour (µSv/h) on the display (dose rate). Sievert is a unit of measurement used to determine radiation exposure to living organisms. The biological effectiveness of the radiation depends on the type of radiation and the radiation energy. 1 Milli-Sievert (mSv) = 1000 Micro-Sievert (µSv) = 0.001 Sievert (Sv).
The measured values can also be displayed in the SEM unit. REM is the former term for the equivalent dose and has not been used since 1985. However, if you want to compare old measurements with today's values, this task can easily be accomplished with the Gamma Scout.
The biological effectiveness of ionizing radiation depends on the type of radiation and the radiation energy. The longer an organism is exposed to radiation, the greater the risk of damage to cells.
The Gamma-Scout therefore not only displays the load in micro sieves per hour, but can also display the data in a bar chart. Another particularly useful feature is that it indicates the maximum duration of exposure to the radiation currently measured. In this way, you always have an overview of all important values and are warned by the gamma scout with a sound signal as soon as certain maximum values are exceeded (All models, except Gamma Scout standard).