title: Promethium-147 capacitor.
abstract: Beta particle surface fluxes for tritium, Ni-63, Pm-147, and Sr-90 sources were calculated in this work. High current density was experimentally achieved from Pm-147 oxide in silica-titana glass. A 96 GBq (2.6 Ci) Pm-147 4pi-source with flux efficiency greater than 50% was used for constructing a direct charge capacitor with a polyimide coated collector and vacuum as electrical insulation. The capacitor connected to high resistance (TOmega) loads produced up to 35 kV. Overall conversion efficiency was over 10% (on optimal load).
authors.affiliation: TRACE Photonics Inc., 1680 West Polk Avenue, Charleston, Illinois 61920, USA.
authors.forename: A
authors.initials: A
authors.lastname: Kavetskiy
authors.forename: G
authors.initials: G
authors.lastname: Yakubova
authors.forename: Q
authors.initials: Q
authors.lastname: Lin
authors.forename: D
authors.initials: D
authors.lastname: Chan
authors.forename: S M
authors.initials: SM
authors.lastname: Yousaf
authors.forename: K
authors.initials: K
authors.lastname: Bower
authors.forename: J D
authors.initials: JD
authors.lastname: Robertson
authors.forename: A
authors.initials: A
authors.lastname: Garnov
authors.forename: D
authors.initials: D
authors.lastname: Meier