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期刊论文
Positorn annihilation study on point defects in lead tungstate
NUCLEAR SCIENCE AND TBCHNIQUES, 2000, 11 (2): 105-108,-0001,():
A study on point defects in lead tungstate (PbW04) by using positron annihilation lifetime method is presented. The measurement was carried out for the cases of untreated, vacuum-annealed, oxygen- annealed and La-doped PbW04 crystals. It was found that the components T2, which reflect the positron annihilation in point defects, are different from each other for each ease. Some tentative models for the defects are discussed.
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