A scintillator having a first surface and a second surface that are not located on the same plane, the scintillator comprising:na first crystal phase and a second crystal phase,wherein the first crystal phase forms, together with the second crystal phase, a eutectic structure, and has a refractive index that allows total reflection of light from the second crystal phase,each of the first crystal phase and the second crystal phase continuously extends from a surface portion of the first surface to a surface portion of the second surface, andthe first crystal phase is located around the second crystal phase, or the second crystal phase is located around the first crystal phase.
›2.↳ 1The scintillator crystal body according to claim 1,nwherein the first crystal phase or the second crystal phase has a shape of a column or a plate.d2+1
The scintillator crystal body according to claim 1,nwherein the first crystal phase or the second crystal phase has a shape of a column or a plate.
›3.↳ 2The scintillator according to claim 2, comprising a plurality of the first crystal phases having a shape of a column or a plate or a plurality of the …d3
The scintillator according to claim 2, comprising a plurality of the first crystal phases having a shape of a column or a plate or a plurality of the second crystal phases having a shape of a column or a plate, andnthe plurality of crystal phases are periodically arranged along the first surface or the second surface at a period of 500 nm or more and 50 μm or less.
›4.↳ 1The scintillator according to claim 1,nwherein the second crystal phase emits light by radiation excitation.d2
The scintillator according to claim 1,nwherein the second crystal phase emits light by radiation excitation.
›5.↳ 1The scintillator according to claim 1,nwherein a composition ratio of the first crystal phase and the second crystal phase is within ±4 percent by mol…d2
The scintillator according to claim 1,nwherein a composition ratio of the first crystal phase and the second crystal phase is within ±4 percent by mole with respect to a eutectic composition ration of the first crystal phase and the second crystal phase.
›6.↳ 1The scintillator according to claim 1,nwherein the first crystal phase or the second crystal phase includes at least one of Tl, In, and Ga as a lumine…d2
The scintillator according to claim 1,nwherein the first crystal phase or the second crystal phase includes at least one of Tl, In, and Ga as a luminescence center.
›7.↳ 1The scintillator crystal body according to claim 1,nwherein the first crystal phase or the second crystal phase contains CsI.d2+1
The scintillator crystal body according to claim 1,nwherein the first crystal phase or the second crystal phase contains CsI.
›8.↳ 7The scintillator according to claim 7,nwherein the first crystal phase or the second crystal phase that contains CSI contains one of RbI, CsBr, and Rb…d3
The scintillator according to claim 7,nwherein the first crystal phase or the second crystal phase that contains CSI contains one of RbI, CsBr, and RbBr, andthe content of RbI is in a range of more than 0 to 20 percent by mole,the content of CsBr is in a range of more than 0 to less than 50 percent by mole, andthe content of RbBr is in a range of more than 0 to 10 percent by mole.
›9.↳ 1The scintillator according to claim 1,nwherein the second crystal phase contains CsI, andthe first crystal phase contains one of NaBr, NaCl, NaF, and …d2
The scintillator according to claim 1,nwherein the second crystal phase contains CsI, andthe first crystal phase contains one of NaBr, NaCl, NaF, and KCl.
›10.↳ 1The scintillator crystal body according to claim 1,nwherein the first crystal phase or the second crystal phase contains NaI.d2
The scintillator crystal body according to claim 1,nwherein the first crystal phase or the second crystal phase contains NaI.
›11.↳ 1The scintillator according to claim 1,nwherein the second crystal phase contains NaI, anda phase of the first crystal phase contains one of NaF, NaCl,…d2
The scintillator according to claim 1,nwherein the second crystal phase contains NaI, anda phase of the first crystal phase contains one of NaF, NaCl, RbI and CsI.
›12.↳ 1The scintillator according to claim 1,nwherein the first crystal phase or the second crystal phase contains RbI.d2
The scintillator according to claim 1,nwherein the first crystal phase or the second crystal phase contains RbI.
›13.↳ 1The scintillator according to claim 1,nwherein the first crystal phase or the second crystal phase contains CsBr.d2
The scintillator according to claim 1,nwherein the first crystal phase or the second crystal phase contains CsBr.
›14.↳ 1The scintillator according to claim 1,nwherein the first crystal phase or the second crystal phase contains RbBr.d2
The scintillator according to claim 1,nwherein the first crystal phase or the second crystal phase contains RbBr.
›15.↳ 1The scintillator according to claim 1,nwherein one phase of the first crystal phase and the second crystal phase contains one of RbI, CsBr, and RbBr, …d2+3
The scintillator according to claim 1,nwherein one phase of the first crystal phase and the second crystal phase contains one of RbI, CsBr, and RbBr, andthe other phase of the crystal phases contains one of NaF, NaCl, and NaBr.
›16.↳ 15The scintillator according to claim 15,nwherein one crystal phase of the first crystal phase and the second crystal phase contains RbI,the one crystal…d3
The scintillator according to claim 15,nwherein one crystal phase of the first crystal phase and the second crystal phase contains RbI,the one crystal phase contains CsI or RbBr,the content of CsI is in a range of more than 0 to 20 percent by mole, andthe content of RbBr is in a range of more than 0 to less than 50 percent by mole.
›17.↳ 15The scintillator according to claim 15,nwherein one crystal phase of the first crystal phase and the second crystal phase contains CsBr,the one crysta…d3
The scintillator according to claim 15,nwherein one crystal phase of the first crystal phase and the second crystal phase contains CsBr,the one crystal phase contains one of CsI, RbBr, and CsCl,the content of CsI is in a range of more than 0 to 50 percent by mole,the content of RbBr is in a range of more than 0 to less than 25 percent by mole, andthe content of CsCl is in a range of more than 0 to less than 50 percent by mole.
›18.↳ 15The scintillator according to claim 15,nwherein one crystal phase of the first crystal phase and the second crystal phase contains RbBr,the one crysta…d3
The scintillator according to claim 15,nwherein one crystal phase of the first crystal phase and the second crystal phase contains RbBr,the one crystal phase contains RbI or CsBr,the content of RbI is in a range of more than 0 to 50 percent by mole, andthe content of CsBr is in range of more than 0 to 15 percent by mole.
›19.↳ 1The scintillator according to claim 1,nwherein the second crystal phase contains one of BaI2, BaBr2, BaCl2, SrBr2, and SrCl2.d2+1
The scintillator according to claim 1,nwherein the second crystal phase contains one of BaI2, BaBr2, BaCl2, SrBr2, and SrCl2.
›20.↳ 19The scintillator according to claim 19,nwherein one of the first crystal phase and the second crystal phase includes at least one of europium (Eu), ce…d3
The scintillator according to claim 19,nwherein one of the first crystal phase and the second crystal phase includes at least one of europium (Eu), cerium (Ce), thallium (Tl), indium (In), and gallium (Ga) as a luminescence center.
›21.↳ 1A radiation detector comprising a photodetector and a scintillator disposed to face the photodetector,nwherein the scintillator is the scintillator ac…d2+1
A radiation detector comprising a photodetector and a scintillator disposed to face the photodetector,nwherein the scintillator is the scintillator according to claim 1.
›22.↳ 21The radiation detector according to claim 21, wherein the photodetector and the scintillator are disposed to face each other with or without at least …d3
The radiation detector according to claim 21, wherein the photodetector and the scintillator are disposed to face each other with or without at least one protective layer interposed therebetween.
