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《Atomic Energy Science and Technology》 2018-01
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Preparation of Alpha Source for ~(241)Am by Magnetohydrodynamic Electrodeposition Method

ZHANG Peng;LIN Min;XU Lijun;CHEN Xilin;XIA Wen;ZHANG Weidong;JIA Xuewen;CHEN Yizhen;CUI Ying;LUO Rui;National Key Laboratory for Metrology and Calibration Techniques,China Institute of Atomic Energy;  
In order to offer the high resolution 241 Am alpha source used in the real-time monitoring of nuclear power plant safety operation,the magnetohydrodynamic electrodeposition method was built,and the equipment and processes were designed.The241 Am sources were prepared by this method,and the deposition conditions were optimized.The optimal deposition conditions are as follows:(NH4)2 SO4 concentration is0.5 mol/L as deposition solution,the current density is 180 mA/cm2,the distance between platinum anode and stainless steel cathode is 5 mm,the magnetic induction at the center of the source slice is 0.193 T,pH of deposition solution is 2.0-2.5,and the deposition time is 1 h.The results show that 241 Am can be deposited quantitatively on the cathode,the deposition yield is nearly to 100%,and the energy resolution is 15.0%higher than that without the magnetic field.The uniformity and firnmess of 241 Amsources were inspected,and the results show that the uniformity and firnmess of the sources prepared by the magnetohydrodynamic electrodeposition method are both good.
【CateGory Index】: O361.3;TM623
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