NONDESTRUCTIVE DETERMINATION OF SOME TRACE-ELEMENTS IN TANTALUM BY PROTON ACTIVATION-ANALYSIS Academic Article uri icon

abstract

  • Trace concentrations of titanium, iron, zirconium, niobium, molybdenum, and tungsten have been determined nondestructively and simultaneously in high purity tantalum. The determination is based on the analysis of the -ray spectra of the radionuclides produced by bombarding thick samples with a 15-MeV proton beam via the following principal reactions: 48Ti(p,n)48V, 58Fe(p,n)58Co, 90Zr(p,n)90Nb,93Nb(p,n)93mMo, and 182W(p,2n)181Re. The trace elements have been determined at levels comprised between 0.1 to 35 ppm, with a relative precision of 8.5 to 25%. The detection limits for a 5 -hr irradiation range from 0.005 ppm for zirconium to 0.5 ppm for tungsten. 1974, American Chemical Society. All rights reserved.

published proceedings

  • ANALYTICAL CHEMISTRY

author list (cited authors)

  • KRIVAN, V., SWINDLE, D. L., & SCHWEIKE, E. A.

citation count

  • 32

complete list of authors

  • KRIVAN, V||SWINDLE, DL||SCHWEIKE, EA

publication date

  • October 1974