Preparation method of adsorbability porous aluminum sheet, preparation method of photon source and photon source

A porous aluminum and adsorption technology, applied in the field of photon source preparation, can solve the problem of uneven dispersion of photon source radioactivity, and achieve the effects of uniform dispersion of radioactivity in the source core, reducing manufacturing cost and reducing production pollution.

Active Publication Date: 2009-10-07
北京树诚科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the problems existing in the prior art, the object of the present invention is to provide a method for preparing an adsorbable porous aluminum sheet, which will be used in the preparation process of the photon source, so as to solve the problems in the preparation method of the photon source in the prior art. The problem of non-uniform radioactive dispersion of the prepared photon source

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1: To prepare a photon source of 5 mCi, perform the following processes in sequence:

[0032] 1. Prepare aluminum powder and polyvinyl alcohol with a particle size of 50 μm;

[0033] 2. The aluminum powder and the polyvinyl alcohol are mixed evenly in a ratio of 100:5;

[0034] 3. Fill in the steel mold and press it into an aluminum sheet of 7×8×1mm with a hydraulic press;

[0035] 4. Put the aluminum sheet in a horse boiling furnace, bake at a constant temperature of 400°C for 3 hours, remove the adhesive in the aluminum sheet - polyvinyl alcohol, and make a porous aluminum sheet;

[0036] 5. Soak the porous aluminum sheet in 3N H at 80°C 3 PO 4 10 hours in liquid;

[0037] 6. Take out the porous aluminum sheet and wash it in an ultrasonic tank with distilled water for 4 hours, take it out, and drain the water;

[0038] 7. Put the porous aluminum sheet into a 400°C horse-boiling furnace and burn for 1 hour to make an absorbent porous aluminum sheet;

...

Embodiment 2

[0044] Embodiment 2: prepare 10 mCi 241 Am photon source, perform the following processes in sequence:

[0045] 1. Prepare aluminum powder and polyvinyl alcohol with a particle size of 50 μm;

[0046] 2. Mix aluminum powder and polyvinyl alcohol evenly in a ratio of 100:5;

[0047] 3. Fill in the steel mold and press it into an aluminum sheet of 7×8×1mm with a hydraulic press;

[0048] 4. Put the aluminum sheet in a horse boiling furnace, bake at a constant temperature of 400°C for 3 hours, remove the adhesive in the aluminum sheet - polyvinyl alcohol, and make a porous aluminum sheet;

[0049] 5. Soak the porous aluminum sheet in 3N H at 80°C 3 PO 4 10 hours in liquid;

[0050] 6. Take out the porous aluminum sheet and wash it in an ultrasonic tank with distilled water for 4 hours, take it out, and drain the water;

[0051] 7. Put the porous aluminum sheet into a 400°C horse-boiling furnace and burn for 1 hour to make an absorbent porous aluminum sheet;

[0052] 8. Wei...

Embodiment 3

[0057] Embodiment 3: prepare 5 mCi 238 Pu photon source, perform the following processes in turn:

[0058] 1. Prepare aluminum powder and polyvinyl alcohol with a particle size of 50 μm;

[0059] 2. Mix aluminum powder and polyvinyl alcohol evenly in a ratio of 100:5;

[0060] 3. Fill in the steel mold and press it into an aluminum sheet of 7×8×1mm with a hydraulic press;

[0061] 4. Put the aluminum sheet in a horse boiling furnace, bake at a constant temperature of 400°C for 3 hours, remove the adhesive in the aluminum sheet - polyvinyl alcohol, and make a porous aluminum sheet;

[0062] 5. Soak the porous aluminum sheet in 3N H at 80°C 3 PO 4 10 hours in liquid;

[0063] 6. Take out the porous aluminum sheet and wash it in an ultrasonic tank with distilled water for 4 hours, take it out, and drain the water;

[0064] 7. Put the porous aluminum sheet into a 400°C horse-boiling furnace and burn for 1 hour to make an absorbent porous aluminum sheet;

[0065] 8. Weigh 0.24...

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Abstract

The present invention discloses a preparation method of adsorbability porous aluminum sheet including process: mixing aluminium powder and adhesives according to a certain proportion and compressing to aluminum sheet of certain specification; burning the aluminum sheet to remove the adhesives and preparing porous aluminum sheet; using acid to treat the porous aluminum sheet, then cleaning and burning to prepare the adsorbability porous aluminum sheet. The invention also discloses preparation method of photon source and a photon source, using the invention provided preparation method of adsorbability porous aluminum sheet to prepare adsorbability porous aluminum sheet, dripping salt solution of a photon source onto the adsorbability porous aluminum sheet until adsorption saturated; the dried adsorbability porous aluminum sheet is made into photon source core by a burning process of certain temperature; encapsulating the photon source core into photon source. The invention provided preparation method of photon source is simple and easy to operate and production pollution is reduced.

Description

technical field [0001] The invention relates to a radioactive source and its preparation, in particular to a photon source, a method for preparing an adsorbable porous aluminum sheet, and a method for preparing a photon source using the method for preparing the adsorbable porous aluminum sheet. Background technique [0002] Photon sources have a wide range of applications, such as bone densitometers and ash meters, etc. will be used 241 Am photon source. In the prior art, the process for preparing the photon source core includes a non-radiation chemical process part and a radiochemical process part. [0003] In the prior art, there are two commonly used low-energy photon source preparation technologies, one is to mix radioactive substances and metal powders with good ductility and press them into tablets, and then make photon sources through the process of adsorption and sintering of americium liquid; the other One is enamel technology, which is to coat radioactive substan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/08G21G4/00G21G4/08
Inventor 张名程
Owner 北京树诚科技发展有限公司
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