Spectra of highly ionised zirconium and molybdenum in the 60-150 AA range from PLT tokamak plasmas

Abstract

Transitions of the types 3s23pk-3s3pk+1 and 3pk-3pk-13d are identified in spectra of zirconium and molybdenum ions isoelectronic with K I to Mg I. These elements were introduced into the Princeton large torus (PLT) tokamak by the laser blow-off technique and their spectra were recorded in the 60-150 AA range using a time-resolving grazing incidence spectrography. Brightnesses of the observed lines are given. These lines should be useful for spectroscopic diagnostics of tokamak and other high-temperature fusion research plasmas. Difficulties related to the study of complex Delta n=0 spectra in the XUV region are discussed.