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Application of uranium-containing compounds as scintillators

A compound and scintillator technology, applied in the field of scintillators, can solve problems such as high price and achieve high radiation resistance, water stability, and improved radiation blocking ability.

Active Publication Date: 2020-05-22
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But the synthetic precursor GeO 2 The price is relatively expensive, and finding cheap and high-performance scintillators is still an important part of the development of scintillators

Method used

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  • Application of uranium-containing compounds as scintillators
  • Application of uranium-containing compounds as scintillators
  • Application of uranium-containing compounds as scintillators

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] The synthesis of embodiment 1SCU-9 crystal

[0045] The reactant UO 2 (NO 3 ) 2 ·6H 2 O, H 3 BO 3 and trimesic acid in a molar ratio of 1:10:1 into a polytetrafluoroethylene reactor, add a small amount of deionized water to dissolve, seal, heat up to 200°C, heat for 3 days, then gradually cool to room temperature, The product was washed with a large amount of boiling water until all the boric acid was dissolved, and the resulting crystalline product was washed with ethanol, and then dried at room temperature to obtain SCU-9 crystals. The central metal UO of the product crystal 2 2+ A one-dimensional chain polymer formed by coordination with carboxylic acid, the density is 2.85g / cm 3 .

[0046] Adopt X-ray testing experimental device to test SCU-9 crystal in X-ray fluorescence spectrogram, wherein, X-ray testing experimental device structure is as follows figure 2 As shown, the sample in the figure is the SCU-9 crystal in this embodiment, and the test results ...

Embodiment 2

[0050] The synthesis of embodiment 2 (NaBUO-4)

[0051] NaNO 3 、H 3 BO 3 and UO 2 (NO 3 ) 2 ·6H 2 O was placed in a polytetrafluoroethylene reactor at a molar ratio of 3:15:1, dissolved in a small amount of deionized water, sealed, heated to 190°C, heated for 1 day, then gradually cooled to room temperature, and the product was washed with a large amount of boiling water until All the boric acid was dissolved, and the obtained crystalline product was washed with ethanol, and then dried at room temperature to obtain (NaBUO-4).

[0052] According to the method in embodiment 1, test the X-ray fluorescence spectrogram of (NaBUO-4), the result is as follows image 3 shown in the bottom curve.

Embodiment 3

[0054] The structural formula of the uranium-containing organophosphate of formula (II) is as follows, hereinafter referred to as ([TMA][(UO 2 ) 2 (1,3-pbpH)(1,3-pbpH 2 )]):

[0055] Its preparation method is as follows:

[0056] isophthalic diphosphate (1,3-bppH 4 ), tetramethylammonium hydroxide and UO 2 (NO 3 ) 2 ·6H 2 O was placed in a polytetrafluoroethylene reactor at a molar ratio of 2:2:1, 1 drop of HF acid was added, and 1 mL of deionized water was added to dissolve, sealed, heated to 200°C, heated for 3 days, and then gradually cooled to room temperature, the product After washing with water, the resulting crystalline product was washed with ethanol, and then dried at room temperature to obtain [TMA][(UO 2 ) 2 (1,3-pbpH)(1,3-pbpH 2 )] compound. This compound can be used as a scintillator.

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Abstract

The invention discloses the application of uranium-containing compounds as scintillators. The uranium-containing compounds are uranium-containing organic-inorganic hybrids or uranium-containing inorganic substances, and the uranium-containing organic-inorganic hybrids are uranium-containing organic carboxylates or uranium-containing organic phosphates: The uranium inorganic substance is uranium-containing non-metallic acid salt, uranium-containing metal salt or uranium-containing halide. The invention discloses that uranium-containing organic-inorganic compounds or uranium-containing inorganic substances have intrinsic scintillation ability, and provides a new concept for the development of scintillators of various chemical compositions and forms (organic-inorganic, inorganic) using uranium elements.

Description

technical field [0001] The invention relates to the technical field of scintillators, in particular to the application of a uranium-containing compound as a scintillator. Background technique [0002] Radiation scintillation performance refers to the process in which a material absorbs high-energy particles (α, β particles) or rays (X, γ) and then emits visible light. Materials with this property are usually called "scintillation" because they can "radiate" Visualization" process (ray-visible light-photoelectric conversion-imaging), so such materials are used in high-energy physics and nuclear physics experiments, space and astrophysics, medical imaging, environmental monitoring, safety inspection, nuclear non-proliferation testing, industrial non-destructive testing, petroleum Well logging and geological exploration and other fields have a wide range of applications. [0003] The scintillators currently used on a large scale are inorganic scintillators. Early inorganic sc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F9/38C09K11/06C07F5/00C07C211/63C01G43/00C01G47/00C01B19/00C01B33/00C01B25/16C01B35/18C01B21/082
CPCC01B19/002C01B21/082C01B25/16C01B33/00C01B35/10C01G43/006C01G47/006C07C211/63C07F5/003C07F9/38C09K11/06C09K2211/182C01B19/007C07F5/00C07F9/3839C09K11/04C09K11/65C09K11/70C09K2211/188G21K2004/06G21K2004/08
Inventor 王殳凹王亚星尹雪苗
Owner SUZHOU UNIV
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