title: Development of a rapid source preparation method for high-resolution alpha-particle spectrometry.
abstract: In order to prepare sources of short-lived actinides for alpha-particle spectrometry, a coprecipitation method with Sm hydroxide was developed. The preparation procedure can be completed within 5 min with a high chemical yield of over 90%. It was found that the uniformity of the produced sources was sufficient to provide a high resolution of better than 20 keV. Under this method, we successfully measured the alpha-particle spectrum of short-lived Cf isotopes produced in the (238)U((12)C, xn) reaction.
authors.affiliation: RIKEN (The Institute of Physical and Chemical Research), Wako, Saitama 351-0198, Japan. hkiku@chem.sci.osaka-u.ac.jp
authors.forename: H
authors.initials: H
authors.lastname: Kikunaga
authors.forename: Y
authors.initials: Y
authors.lastname: Kasamatsu
authors.forename: K
authors.initials: K
authors.lastname: Takamiya
authors.forename: T
authors.initials: T
authors.lastname: Ohtsuki
authors.forename: H
authors.initials: H
authors.lastname: Yuki
authors.forename: A
authors.initials: A
authors.lastname: Yokoyama
authors.forename: T
authors.initials: T
authors.lastname: Nakanishi
authors.forename: T
authors.initials: T
authors.lastname: Mitsugashira