title: Standardization of 152Eu and 154Eu by 4pibeta-4pigamma coincidence method and 4pi(beta+gamma) integral counting.
abstract: The 4pibeta-4pigamma coincidence counting and 4pi(beta+gamma) integral counting techniques were applied for the standardization of 152Eu and 154Eu. In these techniques, the beta-detector is composed of two thin plastic scintillators sandwiching the source coupled with a slender photomultiplier tube. This beta-detector was inserted into a large well-type NaI(Tl) scintillation detector for gamma-ray detection, making a 4pibeta-4pigamma detector configuration. The results obtained by the above two techniques were in good agreement and consistent with the results of international comparisons.
authors.affiliation: Japan Radioisotope Association, 2-28-45, Hon-komagome, Bunkyo, Tokyo 113-8941, Japan. tyamada@jrias.or.jp
authors.forename: Takahiro
authors.initials: T
authors.lastname: Yamada
authors.forename: Yoshihide
authors.initials: Y
authors.lastname: Nakamura
authors.forename: Yasushi
authors.initials: Y
authors.lastname: Kawada
authors.forename: Yasushi
authors.initials: Y
authors.lastname: Sato
authors.forename: Yoshio
authors.initials: Y
authors.lastname: Hino
mesh_terms: D000465:Algorithms; D019544:Equipment Failure Analysis / Q000379:methods / Q000592:standards; D005063:Europium / Q000032:analysis* / Q000592:standards*; D005720:Gamma Rays; D017408:Guidelines as Topic; D007564:Japan; D011829:Radiation Dosage; D011868:Radioisotopes / Q000032:analysis* / Q000592:standards*; D012015:Reference Standards; D012016:Reference Values; D015203:Reproducibility of Results; D012588:Scintillation Counting / Q000295:instrumentation* / Q000592:standards*; D012680:Sensitivity and Specificity; D013051:Spectrometry, Gamma / Q000295:instrumentation / Q000592:standards
chemical_list: D011868:Radioisotopes; D005063:Europium