title: Investigation of high-temperature bright plasma X-ray sources produced in 5-MA X-pinch experiments.
abstract: Using solid, machined X-pinch targets driven by currents rising from 0 to 5-6 MA in 60 ns, we observed bright spots of 5-9-keV continuum radiation from 5±2-μm diameter regions. The >6-keV radiation is emitted in about 0.4 ns, and the bright spots are roughly 75 times brighter than the bright spots measured at 1 MA. A total x-ray power of 10 TW peak and yields of 165±20 kJ were emitted from a 3-mm height. The 3-5-keV continuum radiation had a 50-90-GW peak power and 0.15-0.35-kJ yield. The continuum is plausibly from a 1275±75-eV blackbody or alternatively from a 3500±500-eV bremsstrahlung source.
authors.affiliation: Sandia National Laboratories, Albuquerque, New Mexico 87185, USA.
authors.forename: D B
authors.initials: DB
authors.lastname: Sinars
authors.forename: R D
authors.initials: RD
authors.lastname: McBride
authors.forename: S A
authors.initials: SA
authors.lastname: Pikuz
authors.forename: T A
authors.initials: TA
authors.lastname: Shelkovenko
authors.forename: D F
authors.initials: DF
authors.lastname: Wenger
authors.forename: M E
authors.initials: ME
authors.lastname: Cuneo
authors.forename: E P
authors.initials: EP
authors.lastname: Yu
authors.forename: J P
authors.initials: JP
authors.lastname: Chittenden
authors.forename: E C
authors.initials: EC
authors.lastname: Harding
authors.forename: S B
authors.initials: SB
authors.lastname: Hansen
authors.forename: B P
authors.initials: BP
authors.lastname: Peyton
authors.forename: D J
authors.initials: DJ
authors.lastname: Ampleford
authors.forename: C A
authors.initials: CA
authors.lastname: Jennings