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X-ray excitation scintillator Eu-TPC based on low-dimensional lanthanide series metal complex and preparation method of X-ray excitation scintillator Eu-TPC

A technology of lanthanide metals and complexes, which is applied in the field of X-ray excited scintillator Eu-TPC and its preparation based on low-dimensional lanthanide metal complexes, can solve the problem of low dose rate, low detection efficiency, narrow X-ray dose range, etc. problem, to achieve the effects of good stability, simple preparation process and high luminous brightness

Pending Publication Date: 2022-04-12
NANJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, X-ray detectors are mainly divided into X-ray direct imaging detectors and X-ray indirect imaging detectors. The traditional X-ray direct imaging detectors mainly have the following problems: (1) The X-ray dose range applicable to the former is relatively narrow, so The dose rate that can be tolerated is low; (2) The detection efficiency is low and the life is short

Method used

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  • X-ray excitation scintillator Eu-TPC based on low-dimensional lanthanide series metal complex and preparation method of X-ray excitation scintillator Eu-TPC
  • X-ray excitation scintillator Eu-TPC based on low-dimensional lanthanide series metal complex and preparation method of X-ray excitation scintillator Eu-TPC
  • X-ray excitation scintillator Eu-TPC based on low-dimensional lanthanide series metal complex and preparation method of X-ray excitation scintillator Eu-TPC

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Experimental program
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Effect test

Embodiment 1

[0023] Embodiment 1: the preparation method of lanthanide metal complex Eu-TPC specifically comprises the following steps:

[0024] (1) Weigh 22.3mg of Eu(NO 3 ) 3 ·H 2 The salt solution prepared by O and 1mL water is liquid A;

[0025] (2) Weigh 13.8mg of HTPC ligand and 1mL of DMF to make solution B;

[0026] (3) Take 1mL of solution A and 1mL of solution B into a 20mL glass bottle;

[0027] (4) The vial was then sealed and heated at 100°C for 24h and cooled to room temperature under ambient conditions. After washing with ethanol, colorless Eu-TPC crystals were isolated and air-dried at room temperature for 24 h.

Embodiment 2

[0028] Embodiment 2: the preparation method of lanthanide metal complex Eu-TPC specifically comprises the following steps:

[0029] (1) Weigh 22.3mg of Eu(NO 3 ) 3 ·H 2 The salt solution prepared by O and 1mL water is liquid A;

[0030] (2) Weigh 13.8mg of HTPC ligand and 1mL of DMF to make solution B;

[0031] (3) Take 1mL of solution A and 1mL of solution B into a 20mL glass bottle;

[0032] (4) The vial was then sealed and heated at 70° C. for 24 h and cooled to room temperature under ambient conditions. After washing with ethanol, colorless Eu-TPC crystals were isolated and air-dried at room temperature for 24 h.

Embodiment 3

[0033] Embodiment 3: the preparation method of lanthanide metal complex Eu-TPC specifically comprises the following steps:

[0034] (1) Weigh 22.3mg of Eu(NO 3 ) 3 ·H 2 The salt solution prepared by O and 1mL water is liquid A;

[0035] (2) Weigh 13.8mg of HTPC ligand and 1mL of DMF to make solution B;

[0036] (3) Take 1mL of solution A and 1mL of solution B into a 20mL glass bottle;

[0037] (4) The vial was then sealed and heated at 140°C for 24h and cooled to room temperature under ambient conditions. After washing with ethanol, colorless Eu-TPC crystals were isolated and air-dried at room temperature for 24 h.

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Abstract

The invention discloses an X-ray excitation scintillator Eu-TPC based on a low-dimensional lanthanide metal complex and a preparation method of the X-ray excitation scintillator Eu-TPC, and belongs to the technical field of lanthanide X-ray excitation scintillators. The lanthanide metal complex X-ray excitation scintillator is a one-dimensional chain-shaped molecular stacking crystal (Eu-TPC), and the chemical formula of the lanthanide metal complex X-ray excitation scintillator is (C32H23EuN6O8) x. The millimeter-scale lanthanide metal complex crystal is synthesized and obtained through a solvothermal method and has excellent X-ray excitation luminescence performance. Under X-ray radiation, the characteristic luminescence peaks are 580nm, 592nm, 615nm, 649nm and 695nm, and respectively belong to characteristic radiation transition from 5D0 to 7FJ (J = 0, 1, 2, 3 and 4) of Eu < 3 + >. The Eu-TPC disclosed by the invention has the advantages of simple preparation process, high X-ray absorption efficiency, good stability and the like, and can be applied to the fields of biomedicine, X-ray imaging, X-ray detection and the like.

Description

technical field [0001] The invention belongs to the technical field of lanthanide X-ray scintillators, and relates to a low-dimensional lanthanide metal complex X-ray excited scintillator Eu-TPC and a preparation method thereof. Background technique [0002] X-rays are referred to as "roentgen rays" or X-rays for short. This is an electrical radiation with a wavelength between 0.01nm and 10nm. It has extremely strong energy and strong penetrating ability. In 1895, German scientist Roentgen discovered X-rays, and then he took the first X-ray in human history. Amy Glumb discovered in 1896 that X-rays were very effective in treating cancer, and "radiation therapy" was born. Since then, X-rays have gradually entered people's lives. Today, X-rays are widely used in imaging, tumor treatment, industrial flaw detection, scientific research and other fields, and developed X-ray phase contrast imaging, fluorescence Electronic computer tomography, CT imaging, radiotherapy, X-ray flaw...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D213/55C09K11/06
Inventor 刘湘梅谢旺旺赵强刘淑娟
Owner NANJING UNIV OF POSTS & TELECOMM
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