New accurate data for the spectrum of neutral silver

High resolution spectra of neutral silver have been recorded by Fourier Tra nsform Spectrometry in the region 2 000-8 280 Angstrom (50 000-12 000 cm(-1 )) with silver-neon and silver-argon hollow cathode lamps as sources. This work represents order-of-magnitude improvements, compared to previous work on Ag I, in accuracy of transition wavelengths and wavenumbers, and energy level values. 35 classified Ag I transitions are given, and the wavenumber uncertainty for the strongest lines is less than 0.002 cm(-1). Improved val ues for 28 energy levels are presented.