C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
31/166
C09K 11/00 (2006.01) C09K 11/63 (2006.01) G01T 1/11 (2006.01)
Patent
CA 1089642
THERMOLUMINESCENT MATERIAL ABSTRACT OF THE DISCLOSURE A phosphor for a thermoluminescent radiation dosimeter, comprising lithium tetraborate as a base material and copper as an activator. In addition to such components, lithium octa- borate may further be contained as a base material. Also silver may be employed as an activator. The phosphors according to the invention have an effective atomic number quite near to that of tissue, so that they are suitable for measuring radiation dosages absorbed by tissues. Further they exhibit an emission spectra peak at 368 mu which is convenient for the response of widely used photomultiplier tubes. The sensitivities to y-rays are also improved compared to the known lithium borate phosphor.
287197
Takenaga Mutsuo
Yamamoto Osamu
Yamashita Tadaoki
Fetherstonhaugh & Co.
Matsushita Electric Industrial Co. Ltd.
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