Room temperature HgI2 nuclear radiation detector

摘要

Room temperature radiation detectors are fabricated from large HgI2 single crystals,in which,instead of temperature oscillation method(TOM),a modified vapor growth method is applied to grow the crystals in relatively stable temperature field.The crystals grown by the modified method show lower densities of dislocation(102-104cm-2) ,and the detectors fabricated from the crystals exhibit good energy resolution and very slight polarization.