title: Preparation and activity measurement of electrodeposited alpha-emitting sources.
abstract: 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.
authors.affiliation: Korea Research Institute of Standards and Science, Daejeon 305-600, Republic of Korea. lee@kriss.re.kr
authors.forename: K B
authors.initials: KB
authors.lastname: Lee
authors.forename: Jong
authors.initials: J
authors.lastname: Man Lee
authors.forename: Tae
authors.initials: T
authors.lastname: Soon Park
authors.forename: Phil-Je
authors.initials: PJ
authors.lastname: Oh
mesh_terms: D000512:Alpha Particles; D000576:Americium / Q000032:analysis / Q000737:chemistry / Q000592:standards; D004595:Electroplating / Q000379:methods* / Q000592:standards*; D017408:Guidelines as Topic; D007723:Korea; D011005:Plutonium / Q000032:analysis / Q000737:chemistry / Q000592:standards; D011829:Radiation Dosage; D011834:Radiation Monitoring / Q000295:instrumentation / Q000379:methods / Q000592:standards*; D012015:Reference Standards; D012016:Reference Values; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity
chemical_list: D011005:Plutonium; D000576:Americium