| 摘要 |
In order to detect thermal neutrons, a semiconductor device such as a diode or a DRAM is provided with a region 10 doped with nuclei having a large capture cross section for thermal neutrons, such as the <10>B boron isotope. The interaction of the thermal neutrons (30) with the <10>B isotope produces an alpha particle and a lithium nucleus (12) which can be detected. By reverse-biasing (7) a diode, the current produced by the motion of the fragments can be detected (8). Alternatively, any alpha particle detector can be used with an appropriate configuration of selected high thermal neutron capture cross-section materials to detect thermal neutrons. <IMAGE> |
