【摘要】 当自然界中的磁单极子穿过地壳时,磁单极子—原子核结合体在云母中形成径迹。选用新疆白云母作为探测器,测得云母的裂变径迹年龄为(129±8)×10~6a,可以认为白云母的裂变径迹年龄即为它记录磁单极子—原子核结合体径迹年龄的近似值。更多还原

【Abstract】 Dirac theory and the grand unified theories predicted the existence of magnetic mo-nopoles in the universe. P. B. Price et al. pointed out the possibility to determine the flux of magnetic monopoles passing through the earth by counting the tracks created by mono-pole-nucleus bound state in mica. Natural muscovite mica exploited from Xinjiang First Mica Mine in China was selected as detectors and dated by the fission track method. The fission track age of 129±8 Ma was obtained, which was considered to be the approximate age for the mica to record tracks of monopole-nucleus bound state.更多还原