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http://dx.doi.org/10.4150/KPMI.2015.22.6.432

Synthesis of 58Ni Target and Co Diffused Rh Composite for Application of Mössbauer Source  

Uhm, Young Rang (Radioisotope Research Division, Korea Atomic Energy Research Institute)
Choi, Sang Mu (Radioisotope Research Division, Korea Atomic Energy Research Institute)
Kim, Jong-bum (Radioisotope Research Division, Korea Atomic Energy Research Institute)
Son, Kwang Jae (Radioisotope Research Division, Korea Atomic Energy Research Institute)
Publication Information
Journal of Powder Materials / v.22, no.6, 2015 , pp. 432-437 More about this Journal
Abstract
The en-riched $^{58}Ni$ powders are dissolved in acid solution and coated on a Cu target for proton irradiation at cyclotron to produce $^{57}Co$ radioisotope. The condition of the plating bath and the coating process are determined using the en-riched powders. To establish the coating conditions for $^{57}Co$, non-radioactive Co ions are dissolved in an acid solution and electroplated on to a rhodium plate. The thermal diffusion of electroplated Co into a rhodium matrix was studied to apply a $^{57}Co$ Mssbauer source. The diffusion depth from surface to matrix of Co is depended on the annealing temperature and time. The deposited Co atoms diffuse completely into a rhodium (Rh) matrix without substantial loss at an annealing temperature of 1200 for 4 hours.
Keywords
Mssbauer Source; Diffusion; Electroplating; $^{57}Co/Rh$;
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