| Characteristic of " underground
water radon detector " that be continuously measureing radon
concentration during underground water |
| １. |
It is possible to continuously
measure the radon concentration of underground water easily,
by infusing direct underground water into the radon detector,
when the radon in the water such as the fountain or pumping up
water is measured. |
| ２. |
The underground water is infused
from the valve department of the air tight vessel and flow out
from the detector lower part. |
| ３. |
We are using the electric heater
line to prevent the dew inside the detector and he surface of
PIN photodiode. |
| ４. |
The air and water temperature
of detector are bing measured. |
| ５. |
It is important to measure
the flow rate od undeground water and always keep regularly. |
| ６. |
Such a radon detection method
is called " the surface water establishment style of radon
detector". |
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