





{* Int({testVals.val}, {testVals.val}>=100?0:({testVals.val}>=10?1:2)) *}
{* Int({testVals.val}, {testVals.val}>=100?0:({testVals.val}>=10?1:2)) *}
{* Int({testVals.val}, {testVals.val}>=100?0:({testVals.val}>=10?1:2)) *}
{* Int({testVals.val}, {testVals.val}>=100?0:({testVals.val}>=10?1:2)) *}
{* Int({testVals.val}, {testVals.val}>=100?0:({testVals.val}>=10?1:2)) *}
{* Int({testVals.val}, {testVals.val}>=1000?0:1) *}




{00}
{00}
{05}
{05}
{10}
{10}
{15}
{15}
{20}
{20}
{25}
{25}
{30}
{30}
{30}
{35}
{35}
{35}

µSv/h
µSv/h
µSv/h
µSv/h
µSv/h
mSv/h
mSv/h
mSv/h
mSv/h
mSv/h
The energy of the X-rays is not the same for every photon but forms a continous spectrum. The exact distribution thereby depends on the operation voltage. The maximum energy of a X-ray photon measured in keV matches the operation voltage measured in kV but most photons have lower energies.

Integrated Leybold counter
- Detector type: Geiger-Müller counter
- Measured value: pulse rate
- Energy range: > 2,5 keV (photonic radiation)
- Dead-time: ca. 100 µs
Automess 6150AD6/E
- Detector type: Geiger-Müller counter
- Measured value: H*(10)
- Display range: 0,1 µSv/h to 10 mSv/h
- Measurement range: 0,5 µSv/h to 9,99 mSv/h
- Energy range: 60 keV to 1,3 MeV
- Temperature range: -30°C to +50°C
Graetz X5DE
- Detector type: Geiger-Müller counter
- Measured value: H*(10)
- Display range: 0 µSv/h bis 20 mSv/h
- Measurement range: 1,5 µSv/h to 20 mSv/h
- Energy range: 48 keV to 1,3 MeV
- Temperature range: -30°C to +60°C
FAG FH40 F2
- Detector type: Geiger-Müller counter
- Measured value: H*(10)
- Display range: 0,01 µSv/h to 9,99 mSv/h
- Measurement range: 0,5 µSv/h to 9,9 mSv/h
- Energy range: 45 keV to 1,3 MeV
- Temperature range: -30°C to +50°C
Thermo FH 40 G-L10
- Detector type: proportional counter
- Measured value: H*(10)
- Display range: 100 nSv/h to 100 mSv/h
- Measurement range: 0,5 µSv/h to 100 mSv/h
- Energy range: 45 keV to 1,3 MeV
- Temperature range: -20°C to +50°C
ESM FH 40 G-L
- Detector type: proportional counter
- Measured value: photon dose equivalent
- Display range: 10 nSv/h to 100 mSv/h
- Measurement range: 100 nSv/h to 100 Sv/h
- Energy range: 36 keV to 1,3 MeV
- Temperature range: -30°C to +55°C
Operating Instructions:
In this screen experiment different devices for measuring X-rays will be tested at varying operation voltage.
- Using the arrow-buttons you can choose the measuring device.
- To change the operation voltage, first open the magnified control panel by clicking somewhere in the operation field of the X-ray tube. Now select the voltage setting with the button "U". By using the setting dial or clicking on the voltage display you then can choose a voltage between 0 kV and 35 kV.
- To start or end a measurement, use the button "HV On/OFF" in the lower right of the control panel.
How do you explain your results? If necessary you can get a hint by using the corresponding button.