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Light radiation protection material for a large energy application field

A radiation protection and shielding performance technology, applied in shielding, radiation safety devices, weighing, etc., can solve the problems of reducing the protection effect of materials and achieve good shielding performance

Active Publication Date: 2008-07-23
马威格股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, there is a considerable dose cumulative effect in this low energy range
In other words, the protective effect of the material is reduced due to the formation of secondary radiation on the radiation exit side

Method used

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  • Light radiation protection material for a large energy application field
  • Light radiation protection material for a large energy application field

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0077] A lead-free radiation protection material according to the invention is produced comprising layers: a layer (A) corresponding to the secondary radiation layer, and a layer (B) corresponding to the shielding layer. Layer (A) comprised 54 wt% tin, 36 wt% cerium and 10 wt% matrix material. Layer (B) comprised 36 wt% gadolinium, 36 wt% bismuth, 18 wt% tungsten and 10% matrix.

Embodiment 2

[0079] A lead-free radiation protection material according to the invention is produced. Layer (A) comprises 90 wt% tin and 10 wt% matrix material. Layer (B) comprised 54 wt% gadolinium, 36 wt% bismuth and 10% matrix material.

Embodiment 3

[0081] The production of a lead-free radiation protection material according to the invention comprises layer (A) of example 1 and layer (B) of example 2.

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PUM

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Abstract

The invention relates to a lead-free radiation protection material in the energy field of an x-ray tube with a voltage of between 60 and 125 kV. Said lead-free radiation protection material has a layered structure with at least two layers having different shielding characteristics.

Description

technical field [0001] The present invention relates to lead-free radiation protection materials in the energy range of X-ray tubes with a voltage of 60-125 kV. Background technique [0002] Conventional radiation protection suits in X-ray diagnostics mostly contain lead or lead oxide as protective material. [0003] Lead and its disposal cause considerable damage to the environment due to its toxicity. Since lead is very heavy, lead protective clothing is also notoriously heavy, which means considerable physical fatigue for the user. When wearing protective clothing, for example in medical operations, the weight of the protective clothing is extremely important in terms of wearing comfort and physical fatigue for medical personnel. [0004] Alternatives to lead for radiation protection are known. [0005] DE 199 55 192 A1 describes a method for producing radiation protection materials using polymers as matrix materials and metal powders with high atomic numbers. [0006...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G21F1/12G21F3/03G01G19/00A61B6/10G21F1/00G21F1/08G21F3/02
CPCG21Y2004/30G21F1/085G21Y2002/304G21F3/03G21F1/12G21Y2002/501G21Y2002/301G21Y2002/201
Inventor 海恩瑞什·艾德
Owner 马威格股份有限公司