QUALITY OF MASS PRODUCED LEAD TUNGSTATE CRYSTALS | Zendy

Rennai Mao | Zendy; L. Y. Zhang | Zendy; R. Y. Zhu | Zendy

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QUALITY OF MASS PRODUCED LEAD TUNGSTATE CRYSTALS

Author(s) -

Rennai Mao,

L. Y. Zhang,

R. Y. Zhu

Publication year - 2005

Publication title -

citeseer x (the pennsylvania state university)

Language(s) - English

Resource type - Conference proceedings

DOI - 10.1142/9789812701978_0010

Subject(s) - lead (geology) , quality (philosophy) , tungstate , materials science , optoelectronics , metallurgy , physics , geology , quantum mechanics , geomorphology

Because of broad interest in high energy and nuclear physics community, mass production capacities of lead tungstate crystals have been established. The optical and scintillation properties of PWO crystals, 20 each from two major vendors, were evaluated. The transmittance, emission and excitation spectra, light output and light response uniformity of these crystals were measured. The degradations of these properties under irradiation, and the emission weighted radiation induced absorption coefficient (EWRIAC) were also studied. It was found that currently mass-produced lead tungstate crystals are radiation hard enough for radiation environment where dose rates of up to a few hundreds rad/h is expected.

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