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Packaging of radioactive materials
| Details |
Inventors: Ito, Masuzo; Kakunai, Haruo; Tamamura, Tadao;
Assignee: Kabushiki Kaisha Kobe Seiko Sho (Kobe, JP)
Primary Examiner: Bentley; Stephen C.
Assistant Examiner: Wendtland; Richard W.
Attorney, Agent or Firm: Oblon, Fisher, Spivak, McClelland & Maier
A packaging for radioactive materials, including a packaging body made of cast iron or cast steel, and a shielding material which is cast within the packaging body in the casting of the packaging body thereby installing firmly the shielding material within the packaging body and attaining an excellent X-ray and neutron shielding from radioactive materials therein. |
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DETAILED DESCRIPTION The packaging for radioactive materials of this invention which overcomes the above-discussed disadvantages of the prior arts, comprises a packaging body made of cast iron or cast steel, and a shielding material which is cast within said packaging body in the casting of said packaging body.
The shielding material is at least one selected from the group consisting of heavy metals, concrete, organic materials, ceramics, boron nitride, boron carbide, graphite and hydrogenous alloys.
The shielding material may be interjected inside the case which is cast in said packaging body in the casting of the packaging body.
The case is made of heat-resistant materials such as steel pipes, steel plates or ceramics.
The shielding material is continuously disposed in the circumferential direction within said packaging body.
As the method for manufacturing the packaging for radioactive materials, a shielding material is positioned in a mold for the packaging body, and cast iron or cast steel is poured in the mold thereby forming the packaging in which said shielding material is cast.
The shielding material may be charged inside a case made of heat-resistant materials and then said case is positioned in the mold.
Thus, the invention described herein makes possible the objects of (1) providing a packaging which can attain an effective shielding of .
gamma.
-rays and neutrons from streaming therefrom; (2) providing a packaging wherein a shielding material is easily and firmly installed; (3) providing a packaging which can be manufactured with ease; and (4) providing the method for manufacturing the packaging.
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