Radiation cumulative detector

Figure 3, Cyclic activation analysis. Variation of induced activity with time and cycle number. Key T, cycle period tj, time of irradiation U, time between end of irradiation and start of count tc, time of counting and t ,, time between end of counting and start of irradiation. The detected radiations at each counting period are summed to give a cumulative detector response, Dc, over the total experimental time. Dc is maximized when = t , and tf = tc = T/2 ( See reference 17...

The second type of detector is used to measure accumulated radiation (or total dose ) over a period of time. These are worn by personnel who are being exposed to low levels of radiation on a regular basis to make sure that they stay below acceptable levels of cumulative radiation. These can take the form of radiation badges that measure total exposure. Historically these used film that needed to be processed to determine exposure. Modem devices have a digital display of total dose. As with real-time detectors it is important to understand what kinds of radiation the device detects (or doesn t detect). 

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