【摘要】 研究了低通量(～10~8n/cm~2)慢中子对Y系、Bi系及其掺杂高T_c超导体(HTSC)正常态电阻的影响及其机理。实验结果表明,HTSC在低通量慢中子辐照后,正常态电阻R不仅不遵从随辐照通量φ_n按指数增加的规律,而且还会较大幅度地减小。更多还原

【Abstract】 This work studies the effect and mechanism of slow neutron irradiation of low fluence (~10~8n/cm~2) in normal resistivity of Y and Bi system and the doped high T_c superconductors. The experimental results indicate that the normal resistivity R not only follows the law that R is increasing exponentially with the enhancement of fluence φ_n, but also decreases greatly after irradiation of slow neutron with low fluence.更多还原