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公开(公告)号：US20220291414A1
公开(公告)日：2022-09-15
申请号：US17199989
申请日：2021-03-12
摘要： The use of scintillator compositions having a cubic garnet structure for gamma detection in downhole oil and gas explorations is provided. Specifically, two primary compositions of interest are disclosed, Ca2LnHf2Al3O12 and NaLn2Hf2Al3O12, where Ln is Y, Gd, Tb, or La. Under gamma ray excitation, the electron-hole pairs produced in the garnet lattice structure are trapped by an activator ion to yield an efficient emission in the visible portion of the electromagnetic spectrum. The cubic garnet structure enables the use of these materials as ceramic scintillators with considerable advantages over related single crystals in various ways as disclosed herein, including reduction in cost and improvement in overall performance and durability.
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公开(公告)号：US11994646B2
公开(公告)日：2024-05-28
申请号：US17199989
申请日：2021-03-12
CPC分类号： G01V5/06 , C09K11/7774 , E21B47/00 , G01T1/2018
摘要： The use of scintillator compositions having a cubic garnet structure for gamma detection in downhole oil and gas explorations is provided. Specifically, two primary compositions of interest are disclosed, Ca2LnHf2Al3O12 and NaLn2Hf2Al3O12, where Ln is Y, Gd, Tb, or La. Under gamma ray excitation, the electron-hole pairs produced in the garnet lattice structure are trapped by an activator ion to yield an efficient emission in the visible portion of the electromagnetic spectrum. The cubic garnet structure enables the use of these materials as ceramic scintillators with considerable advantages over related single crystals in various ways as disclosed herein, including reduction in cost and improvement in overall performance and durability.
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公开(公告)号：US20240310550A1
公开(公告)日：2024-09-19
申请号：US18674421
申请日：2024-05-24
CPC分类号： G01V5/06 , C09K11/7774 , E21B47/00 , G01T1/2018
摘要： The use of scintillator compositions having a cubic garnet structure for gamma detection in downhole oil and gas explorations is provided. Specifically, two primary compositions of interest are disclosed, Ca2LnHf2Al3O12 and NaLn2Hf2Al3O12, where Ln is Y, Gd, Tb, or La. Under gamma ray excitation, the electron-hole pairs produced in the garnet lattice structure are trapped by an activator ion to yield an efficient emission in the visible portion of the electromagnetic spectrum. The cubic garnet structure enables the use of these materials as ceramic scintillators with considerable advantages over related single crystals in various ways as disclosed herein, including reduction in cost and improvement in overall performance and durability.
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