发明名称 Manganese-containing lithium triborate thermoluminescent phosphor, and method for producing same
摘要 The present invention provides a thermoluminescent phosphor for obtaining a two-dimensional or three-dimensional dosimeter for measuring dose absorbed by biological tissues, which phosphor has superior handleability, superior biological tissue equivalence, and superior precision.;It is produced by a method comprising (A1) mixing Li2B4O7, B2O3 and MnO2, (A2) firing the mixture at 770 to 840° C., and (A3) obtaining the thermoluminescent phosphor comprising lithium triborate as a base material and manganese as a luminescent center present in the base material by further adding and mixing Li2B4O7 into the fired product and then firing the mixture at 770 to 840° C., wherein the molar ratio of Li2B4O7:B2O3 in A1 is 1:X (1<X≦4), MnO2 is 0.02 to 1.0 mass % relative to the total mass of the B2O3 and the total amount of the Li2B4O7 added in A1 and A3, and Li2B4O7 in A3 is (X-1) mol relative to 1 mol of the B2O3.
申请公布号 US9181473(B2) 申请公布日期 2015.11.10
申请号 US201214008676 申请日期 2012.03.19
申请人 RIKKYO GAKUIN 发明人 Urushiyama Akio;Tomizawa Yuji
分类号 C09K11/63;C09K11/08;C09K11/02;C09K9/00 主分类号 C09K11/63
代理机构 Nixon & Vanderhye P.C. 代理人 Nixon & Vanderhye P.C.
主权项 1. A method for producing a thermoluminescent phosphor, comprising: a step A1 for mixing lithium tetraborate, boron oxide and manganese dioxide, a step A2 for firing the mixture at 770 m to 840° C., and a step A3 for obtaining the thermoluminescent phosphor comprising lithium triborate as a base material and manganese as a luminescent center present in the base material by further adding and mixing lithium tetraborate into the fired product and then firing the mixture at 770 to 840° C., wherein the molar ratio between the lithium tetraborate and the boron oxide in the step A1 is 1:X, provided that 1<X≦4, the amount of the manganese dioxide is 0.02 to 1.0 mass % relative to the total mass of the boron oxide and the total amount of the lithium tetraborate added in the steps A1and A3, and the amount of the lithium tetraborate in the step A3 is (X-1) mol relative to 1 mol of the boron oxide.
地址 Tokyo JP