Electrolytic composite plating as a method of [90Sr]strontium fixing for the preparation of radiation sources

Mielcarski, M.; Poninski, M.; Lorens, Urszula

doi:10.1016/0969-8043(94)90106-6

Cited by 3 publications

(2 citation statements)

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“…Alkaline cyanide baths (pH 11) containing constant concentrations of K[Au(CN)2 ] and 241Am were used in each electrolysis. It can be assumed that in such medium americium forms colloidal or pseudocolloidal hydroxides such as Am(OH)3 , Am(OH) 4 or Na2AmO2(OH)3.nH20.8 Volume of the galvanic bath was 300 ml and the area of silver cathode 37 cm 2. Current density of 200 mA/dm 2 was applied.…”

Section: Methodsmentioning

confidence: 99%

“…3 During the electrolytic codeposition of americium with precious matrix metal, a cathodic layer hydrolysis can occur, with the formation of slightly soluble hydroxides or oxides having often the form of charged colloides or pseudocolloides which are included into the structure of growing metallic layer. 4,5 This method of fixing of 241Am was investigated 6 from the point of view of manufacturing of radiation sources. Continued investigations of the co-deposition of americium-241 with gold concerned the effect of ageing of the electrolyte.…”

Section: Introduction*mentioning

confidence: 99%

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Electrodeposition of106Ru and241Am and derived information on preparing sealed radiation sources

Molenda¹,

Mielcarski²

1998

J Radioanal Nucl Chem

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The application of electrochemical plating method for the deposition of electropositive Ru and electronegative Am was examined. These investigations were aimed on the preparation of sealed radiation sources of l~ used in treatment of intraocular tumours, and 241Am used for ionization purposes. The composition of galvanic baths and process parameters influencing the quality and stability of ruthenium deposites and americium with gold co-deposites were determined. The effect of ageing of the electrolyte on the rate of 241Am co-deposition was investigated. From the results obtained it follows that the ageing favours the formation of species affecting the transport of americium towards the cathode. The method of sealing of the sources by means of galvanic deposition of metallic protective layers is described. The galvanic plating technique enables manufacturing of sealed radiation sources of l~ and 241Am.

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Section: Methodsmentioning

confidence: 99%

Section: Introduction*mentioning

confidence: 99%

Electrodeposition of106Ru and241Am and derived information on preparing sealed radiation sources

Molenda¹,

Mielcarski²

1998

J Radioanal Nucl Chem

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Inclusion of radionuclides into cathodic composite layers

Mielcarski¹

1996

Journal of Radioanalytical and Nuclear Chemistry, Articles

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A simple procedure for the fabrication of high activity beta-radiation sources of147Pm for use in beta-ray thickness gauges

Balasubramanian

1998

J Radioanal Nucl Chem

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A simple procedure is described for the fabrication of mCi level strong sources of 147pm radioisotope on a noble metal substrate like Palladium as a source for [3 -ray thickness gauge. The procedure is based on the principle of internal electro-deposition of 147pm from aqueous solutions containing 147pm3+ ions, using metallic magnesium for the purpose. Investigations conducted towards ascertaining the adherence of the 147pm radioactivity onto the palladium substrate. Leaching studies conducted on these source indicated that the radioactive film is satisfactorily adherent to the palladium substrate, suggesting that the method can be used for fabricating satisfactorily safe high [3 -activity sources of 147pm contained in small active dimensions. Results of leaching studies keeping the sources fully immersed in boiling water forl5 minutes are also presented.

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Electrolytic composite plating as a method of [90Sr]strontium fixing for the preparation of radiation sources

Cited by 3 publications

References 1 publication

Electrodeposition of106Ru and241Am and derived information on preparing sealed radiation sources

Electrodeposition of106Ru and241Am and derived information on preparing sealed radiation sources

Inclusion of radionuclides into cathodic composite layers

A simple procedure for the fabrication of high activity beta-radiation sources of147Pm for use in beta-ray thickness gauges

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