Doping by different trivalent ions (La3+, Lu3+, Gd3+, Y3+, Sc3+) was systematically studied in PbWO4crystals in the same way, using raw material from the same source. The result was compared with an undoped sample (actually a Pb-rich one) and samples doped with divalent (Cd2+) and pentavalent (Nb5+) ions. All the trivalent ions but Sc3+gave a significant improvement in transmittance in the short wavelength region (330-450 nm) and in radiation hardness. Among all the tested dopants, Y3+and Gd3+showed the best result; these dopants may be worth further studies, since they have another advantage of the segregation coefficient close to unity.
|Pages (from-to)||412 - 423|
|Number of pages||12|
|Journal||Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment|
|Publication status||Published - 21 Sep 1999|
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics
Kobayashi, M., Usuki, Y., Ishii, M., Senguttuvan, N., Tanji, K., Chiba, M., ... Diemoz, M. (1999). Significant improvement of PbWO. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 434(2), 412 - 423. https://doi.org/10.1016/S0168-9002(99)00550-1