A STUDY ON La-DOPED PbWO4 SCINTILLATING CRYSTAL | Zendy

TANG XUE-FENG | Zendy; Mu Gu | Zendy; TONG HONG-YONG | Zendy; Ling Liang | Zendy; Mingzhen Yao | Zendy; Lingyan Chen | Zendy; Jingying Liao | Zendy; SHEN BIN-FU | Zendy; QU XIANG-DONG | Zendy; Zhiwen Yin | Zendy; Xu Weixin | Zendy; WANG JING-C HENG | Zendy

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A STUDY ON La-DOPED PbWO4 SCINTILLATING CRYSTAL

Author(s) -

TANG XUE-FENG,

Mu Gu,

TONG HONG-YONG,

Ling Liang,

Mingzhen Yao,

Lingyan Chen,

Jingying Liao,

SHEN BIN-FU,

QU XIANG-DONG,

Zhiwen Yin,

Xu Weixin,

WANG JING-C HENG

Publication year - 2000

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.49.2007

Subject(s) - dopant , doping , materials science , positron annihilation , crystal (programming language) , vacancy defect , x ray photoelectron spectroscopy , oxygen , positron , condensed matter physics , nuclear magnetic resonance , physics , optoelectronics , nuclear physics , electron , computer science , programming language , quantum mechanics

The changes of defects in PbWO4 crystal caused by La dopant have been studied by means of positron annihilation lifetime and X-ray photoelectron spec trum (XPS).The results show that La dopant enhance the concentration of lead vac ancy (Pb) which can be described as the positron capture center in PbWO4 crystal,and lead vacancy will furthermore introduce low-valent oxygen center.We discuss the mechanism of La doped in PbWO4,and consi der that oxygen vacancy is restrained by doping of La,while lead vacancy density is increased by La dopant.

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