Enhanced efficiency of PbWO4:Mo,Nb scintillator

Nikl, M.; Boháček, P.; Mihóková, E.; Solovieva, N.; Vedda, A.; Martini, M.; Pazzi, G.P.; Fabeni, P.; Kobayashi, Masaaki; Ishii, Mitsuru

doi:10.1063/1.1462420

Cited by 73 publications

(56 citation statements)

References 18 publications

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“…This band is undoubtedly ascribed to the excitons localized at (MoO 4 ) 2− centers in PWO. 35,36) It is interesting to note that the peak position of the band IV in undoped PWO clearly differs from that in Mo-doped PWO. Such a difference distinctly rules out the proposal (iv).…”

Section: Discussionmentioning

confidence: 99%

Time-resolved luminescence from Jahn-Teller split states of self-trapped excitons inPbWO4

Itoh

Sakurai

2006

Phys. Rev. B

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Section: Discussionmentioning

confidence: 99%

Time-resolved luminescence from Jahn-Teller split states of self-trapped excitons inPbWO4

Itoh

Sakurai

2006

Phys. Rev. B

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“…During the last decade, the most studied members of this family of materials have been the orthotungstates and orthomolybdates, which have many technological applications [11][12][13][14][15][16]. In special high-pressure (HP) studies of MTO 4 ternary oxides have generated a large amount of attention, with HP being an efficient tool in improving the understanding of their physical properties [3][4][5][6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Pressure-induced phase transition and band-gap collapse in the wide-band-gap semiconductorInTaO4

et al. 2016

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A pressure-induced phase transition, associated with an increase of the coordination number of In and Ta, is detected beyond 13 GPa in InTaO 4 by combining synchrotron x-ray diffraction and Raman measurements in a diamond-anvil cell with ab initio calculations. High-pressure optical-absorption measurements were also carried out. The high-pressure phase has a monoclinic structure that shares the same space group with the low-pressure phase (P 2/c). The structure of the high-pressure phase can be considered as a slight distortion of an orthorhombic structure described by space group Pcna. The phase transition occurs together with a unit-cell volume collapse and an electronic band-gap collapse observed by experiments and calculations. Additionally, a band crossing is found to occur in the low-pressure phase near 7 GPa. The pressure dependence of all the Raman-active modes is reported for both phases as well as the pressure dependence of unit-cell parameters and the equations of state. Calculations also provide information on infrared-active phonons and bond distances. These findings provide insights into the effects of pressure on the physical properties of InTaO 4 .

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“…These crystals were optimized for calorimet ric detectors by doping with trivalent ions [5,6]. Great progress in the enhancement of quantum yield was achieved by double doping of PWO crystals with Mo and La or Y and Nb ions [7][8][9][10]. This doping enhances the quantum yield by a factor of 2-4 without significant loss of other scintillation characteristics.…”

Section: Introduction Lead Tungstate Pbwomentioning

confidence: 99%