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Fig. 45

image

Count rate outside the radiation belts registered by the XMM-Newton radiation monitor in the high energy “nhe2” channel (electrons: 1.3–1.75 MeV, protons: 9–37 MeV). This displays the solar activity (spiky structures due to solar flares) throughout the mission, showing the active sun at the start and after 10 years of mission and the solar minimum in between.

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