Alpha-particle activation analysis of traces of niobium in geological materials

✍ Scribed by N.R. Das; D. Basu; S.N. Bhattacharyya

• Book ID: 103920025
• Publisher: Elsevier Science
• Year: 1987
• Weight: 345 KB
• Volume: 38
• Category: Article
• ISSN: 0883-2889
• DOI: 10.1016/0883-2889(87)90264-4

✦ Synopsis

The effectiveness of alpha activation for the analysis of traces of niobium in geological material, namely, phosphate rocks, has been demonstrated. The niobium was first preconcentrated in a solid matrix, Al,O, and then irradiated with a 40 MeV alpha beam having an intensity in the range of m l-3 PA at the Variable Energy Cyclotron, Calcutta, under specific experimental conditions. Radionuclides formed by the nuclear reactions, (a, n), (a, 2n), (a, 3n) and also (a, an) on niobium were detected. Niobium contents in the experimental phosphate rock samples vary from -6-15 ppm.