Lee K B, Man Lee Jong, Soon Park Tae, Oh Phil-Je
Korea Research Institute of Standards and Science, Daejeon 305-600, Republic of Korea.
Appl Radiat Isot. 2006 Oct-Nov;64(10-11):1260-4. doi: 10.1016/j.apradiso.2006.02.090. Epub 2006 Aug 7.
Alpha-emitting 238Pu and 241Am sources on stainless steel substrates have been prepared using a new electrodeposition method based on an ammonium oxalate-ammonium sulfate electrolyte containing diethyl triamino pentaacetic acid. The deposition yield is determined by measuring the activity of the sources using a high-efficiency 2pi alpha proportional counter and a backscattering chamber designed and fabricated for this purpose. Optimal electrodeposition parameters have been determined for 241Am, enabling manufacture of standard alpha-emitting sources with minimal radioactive waste.
基于含有二乙三胺五乙酸的草酸铵 - 硫酸铵电解质,采用一种新的电沉积方法,在不锈钢基底上制备了发射α粒子的238Pu和241Am源。通过使用高效的2πα正比计数器和为此设计制造的背散射室测量源的活度来确定沉积产率。已确定241Am的最佳电沉积参数,能够制造放射性废物最少的标准α发射源。