In Britain, it is usual to have between eight and 10 gamma dose rate sensors on the boundary fence around a nuclear power plant.
32.
However, 75 mGy / d cannot be accurately described as a low dose rate it is equivalent to over 27 sieverts per year.
33.
Further the integral of the energy depositions of the particles accumulated in the detector during the measurement interval allowed calculation of the dose rate.
34.
In many countries personal dosimeters are not required to be used by radiographers as the dose rates they show are not always correctly recorded.
35.
In contrast, RH TRU can be highly radioactive, with surface dose rates up to 10 Sv / h ( 1000 rem / h ).
36.
A thin metal shield is needed around a GM tube to provide energy compensation to enable it to be used for dose rate measurements.
37.
The infusion dose rate of barbiturates is increased until EEG burst suppression or cortical electrical silence ( isoelectric " flatline " EEG ) is attained.
38.
Daily mean values of the ambient dose rate ( background radiation ) on the area around this municipality are H " 100 nSv / h.
39.
The response differs too much between different radioisotopes to permit a simple GM tube for dose rate measurements when more than one radioisotope is present.
40.
A higher than expected dose rate was detected when the lowest of the three ion chambers exited the reactor vessel below the lower axial shield.
