LI Anli LUO Qi FAN Zhiguo ZHENG Shengnan GOU Zhenhui WANG Chunrui QIAN Jiayu ZHU Shengyun. Positron annihilation study of defects in fission neutron irradiated GaAS[J]. Nuclear techniques, 1998, (2).
LI Anli LUO Qi FAN Zhiguo ZHENG Shengnan GOU Zhenhui WANG Chunrui QIAN Jiayu ZHU Shengyun. Positron annihilation study of defects in fission neutron irradiated GaAS[J]. Nuclear techniques, 1998, (2).DOI:
N- type HB GaAs single cryatal irradiated by En≥1MeV fission neutrons with a fluence of 6.5 × 1015/cm2 and 1.4 × 1014/cm2 respectively have been investigated using the positron annihilation lifetime technique. The mono- and di- vacancies were created by the irradiation and the tri- vacancies were formed during annealing. The concentration of
defects was proportional to the irradiating neutron fluence . Three annealing stages were observed at 250