Abstract

An annular Cd-109 source was used to induce fluorescent X-rays from 37 pieces of Straits Chinese porcelain of which four were modern pieces and the rest were produced from the nineteenth century up to the Republic period (1912-1939). Experimental data show that for zirconium and niobium infinite thickness is reached for a thickness of about 1.5 mm. A plot of the intensity of the K_α1 line of Zr against that of Nb shows that all Ch'ing and Republic pieces cluster together and are quite distinct from the modern pieces, allowing easy nondestructive identification of modern fakes.

Underway spectrophotometry in the Fram Strait (European Arctic Ocean): a highly resolved chlorophyll a data source for complementing satellite ocean color

Yangyang Liu, Rüdiger Röttgers, Marta Ramírez-Pérez, Tilman Dinter, François Steinmetz, Eva-Maria Nöthig, Sebastian Hellmann, Sonja Wiegmann, and Astrid Bracher
Opt. Express 26(14) A678-A696 (2018)

Zirconium Arc Source for Infrared Microspectrometer*

W. H. Cloud
J. Opt. Soc. Am. 46(10) 899-900 (1956)

Zirconium isotope shift measurement using laser pumping and optogalvanic detection

Etienne Langlois and Jean-Marie Gagné
J. Opt. Soc. Am. B 11(4) 552-557 (1994)

Quantitative Spectrographic Analysis of Zirconium-Hafnium Mixtures*

Velmer A. Fassel and Charles H. Anderson
J. Opt. Soc. Am. 40(11) 742-747 (1950)

Demonstration of transient gain x-ray lasers near 20??nm for nickellike yttrium, zirconium, niobium, and molybdenum

James Dunn, Joseph Nilsen, Albert L. Osterheld, Yuelin Li, and Vyacheslav N. Shlyaptsev
Opt. Lett. 24(2) 101-103 (1999)