According to the method a gamma radiation converter (1) is placed in the space exposed to the effects of nuclear explosion. Said converter (1) converts gamma radiation to electric current and then the current signal from the converter is continuously converted to a voltage signal in a ratio of 1 µA/1 V. Subsequently, the components whose frequency is lower than 1 kHz are eliminated from the obtained voltage signal. Such modified voltage signal is then compared with a selected threshold value and detected when it exceeds that threshold. In the detector implementing the above method the output of the gamma radiation converter (1) is connected to the input of the electronic detection system (3) which comprises (connected on series) a current-voltage converter with conversion ratio of 1 µA/1 V, an eliminator which eliminates signal components whose frequencies are lower than 1 kHz and a voltage comparator. The vehicle according to the invention contains the described above explosion detector and the protective actuation systems activated after an explosion is detected which initiate engine shutdown and closure of vehicle air intakes.
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