Radiation detection material and radiation detection device
AssigneeKabushiki Kaisha Toshiba
InventorsYumi FUKUDA, Keiko ALBESSARD, Kenji ESSAKI
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Abstract
The embodiments provide a radiation detection material emitting fluorescence with high intensity and short lifetime, and also provide a radiation detection device. The polycrystalline radiation detection material of the embodiment is represented by the following formula (1) TlM1-x-yRxX3-z (1). In the formula, M is at least one metal element selected form the group consisting of Ca, Sr, Ba and Mg; R is at least one luminescence center element selected form the group consisting of Ce, Pr, Yb and Nd; X is at least one halogen element selected form the group consisting of Cl, Br and F; and x, y and z are numbers satisfying the conditions of 0≤x≤0.5, −0.1≤y≤0.1, and −0.5≤z≤1, respectively.
Claims8
A polycrystalline radiation detection material represented by the following formula (1)
- TlM1-x-yRxX3-z (1)
- wherein
- M is at least one element selected form the group consisting of Ca, Sr, Ba and Mg;
- R is at least one element selected form the group consisting of Ce, Pr, Yb and Nd;
- X is at least one element selected form the group consisting of Cl, Br and F;
- and
- x, y and z are numbers satisfying the conditions of
- 0≤x≤0.5,
- −0.1≤y≤0.1, and
- −0.5≤z≤1, respectively.
Dependencies are inferred from the claim text.