Solid solution material of rare earth element fluoride (polycrystal and single crystal), and method for preparation thereof, and radiation detector and test device
First Claim
1. A rare earth fluoride solid solution single crystal wherein said rare earth fluoride solid solution single crystal is represented by MxREyRE′
-
1−
x−
yFz,where RE is one or two or more selected from the group consisting of Ce, Pr, Nd, Eu, Tb, Ho, Er, Tm, and Yb,RE′
is one or two or more selected from the group consisting of La, Sm, Gd, Dy, Lu, Y, and Sc,M is one or more of Mg, Ca, Sr, and Ba,0.0000<
y<
1.0000,1.5000≦
z≦
3.5000, and0.0000<
x<
0.1500.
3 Assignments
0 Petitions
Accused Products
Abstract
A rare earth fluoride solid solution material (polycrystal and/or single crystal) characterized in that the material is obtained by mutually combining a plurality of rare earth fluorides having phase transitions and having different ion radii, respectively, so that the rare earth fluoride solid solution material is free of phase transitions. A rare earth fluoride solid solution material (polycrystal and/or single crystal) characterized in that the material is represented by (REyRE′1−y)F3 (0.0000<y<1.0000), wherein RE represents one or two or more selected from Sm, Eu, and Gd, and RE′ represents one or two or more selected from Er, Tm, Yb, Lu, and Y. A rare earth fluoride solid solution material (polycrystal and/or single crystal) represented by MxREyRE′1−x−yFz., wherein RE is one or two or more selected from Ce, Pr, Nd, Eu, Tb, Ho, Er, Tm, or Yb, RE′ is one or two or more selected from La, Sm, Gd, Dy, Lu, Y, and Sc, and M is one or more of Mg, Ca, Sr, and Ba.
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Citations
27 Claims
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1. A rare earth fluoride solid solution single crystal wherein said rare earth fluoride solid solution single crystal is represented by MxREyRE′
-
1−
x−
yFz,where RE is one or two or more selected from the group consisting of Ce, Pr, Nd, Eu, Tb, Ho, Er, Tm, and Yb, RE′
is one or two or more selected from the group consisting of La, Sm, Gd, Dy, Lu, Y, and Sc,M is one or more of Mg, Ca, Sr, and Ba, 0.0000<
y<
1.0000,1.5000≦
z≦
3.5000, and0.0000<
x<
0.1500. - View Dependent Claims (2, 3)
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1−
-
4. A rare earth fluoride solid solution single crystal wherein said rare earth fluoride solid solution single crystal is a rare earth fluoride solid solution material comprising a plurality of mutually combined rare earth fluorides having different ion radii, respectively;
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wherein said rare earth fluoride solid solution material includes cations having an averaged ion radius which is in a size equal to or less than an ion radius of La3+ and larger than an ion radius of Sm3+, or in a size smaller than an ion radius of Gd3+ and larger than an ion radius of Er3+; wherein said rare earth fluoride solid solution material includes Ce, and is free of primary phase transitions over a temperature range from room temperature to a melting point of said rare earth fluoride solid solution; and wherein said rare earth fluoride solid solution single crystal includes an alkaline earth metal (AE) which is one or more of Mg, Ca, Sr, and Ba. - View Dependent Claims (5)
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6. A rare earth fluoride solid solution single crystal wherein said rare earth fluoride solid solution single crystal is a rare earth fluoride solid solution material comprising a plurality of mutually combined rare earth fluorides having different ion radii, respectively;
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wherein said rare earth fluoride solid solution material includes cations having an averaged ion radius which is in a size equal to or less than an ion radius of La3+ and larger than an ion radius of Sm3+, or in a size smaller than an ion radius of Gd3+ and larger than an ion radius of Er3+; wherein said rare earth fluoride solid solution material includes Ce, and is free of primary phase transitions over a temperature range from room temperature to a melting point of said rare earth fluoride solid solution; and wherein said rare earth fluoride solid solution material has fluorescence components at least one of which has a decay time of 50 nsec or shorter at a room temperature. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A rare earth fluoride solid solution single crystal wherein said rare earth fluoride solid solution single crystal is represented by (REyRE′
-
1−
y)F3 (0.2<
y<
0.9), wherein RE represents one or two or more selected from the group consisting of Sm, Eu, and Gd, and RE′
represents one or two or more selected from the group consisting of Er, Tm, Yb, Lu, and Y, except for GdyY1−
yF3, GdyEr1−
yF3, and Gdy(YEr)1−
yF3); andwherein the solid solution material of rare earth element fluoride is free of primary phase transitions over a temperature range from room temperature to a melting point of said rare earth fluoride solid solution; and wherein said rare earth fluoride solid solution material has fluorescence components at least one of which has a decay time of 50 nsec or shorter at a room temperature. - View Dependent Claims (20)
-
1−
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21. A rare earth fluoride solid solution single crystal wherein said rare earth fluoride solid solution single crystal is represented by (REyRE′
-
1−
y)F3 (0.0000<
y<
1.0000), where RE represents one or two or more selected from the group consisting of Sm, Eu, and Gd, and RE′
represents one or two or more selected from the group consisting of Er, Tm, Yb, Lu, and Y;wherein said rare earth fluoride solid solution single crystal includes Ce, and is free of primary phase transitions over a temperature range from room temperature to a melting point of said rare earth fluoride solid solution; and wherein said rare earth fluoride solid solution material has fluorescence components at least one of which has a decay time of 50 nsec or shorter at a room temperature. - View Dependent Claims (22, 23, 24, 25)
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1−
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26. A rare earth fluoride solid solution single crystal, wherein said rare earth fluoride solid solution single crystal is a single crystal and is represented by GdyY1−
- yF3, GdyEr1−
yF3, or Gdy(YEr)1−
yF3) 0.4≦
y<
0.6); andwherein said rare earth fluoride solid solution single crystal includes Ce, and is free of primary phase transitions over a temperature range from room temperature to a melting point of said rare earth fluoride solid solution. - View Dependent Claims (27)
- yF3, GdyEr1−
Specification