【摘要】 本文采用改进的Bridgman法，以纯度不低于99．99％的PbO和WO3为原料，生长出无色透明的、大尺寸的PbWO4（PWO）晶体，研究了晶体沿生长方向不同部位的透射光谱及X射线激发的发射光谱特性．发现改进的Bridgman法生长的PWO晶体具有较好的发光均匀性和透光均匀性，其原因主要是改进的Bridgman法采用密封的坩埚，有效地抑制了组份（PbO和WO3）的挥发.更多还原

【Abstract】 Large size PbWO4 single crystals were grown from PbO and WO3 powders of 99.99% purityby modified Bridgmajn method (MBM). The transmittance and steady-state X-ray excited emissionspctra of the grown crystals were studied. The results show good homogeneity in transmittanceand luminescence along the longitudinal direction of the crystals, which can be mainly attributedto the effective inhibition of vaporization of the constituents by the sealing of crucibles in MBM.更多还原