SEDIMENTARY ROCK ANALYSIS BY CHARGED PARTICLE BOMBARDMENT
Rapid analytic techniques are urgently needed in geochemical investigations where hundreds of analyses are often required. Methods based on nuclear reactions in the light elements are described for the analysis of Li, Be. B, C, O, F, Na, Mg. Al. and P. The reactions were induced by proton, deuteron, and alpha particle beams from a 2-Mev Van de Graaff machine. The methods were evaluated for sensitivity and accuracy by analysis of synthetic specimens of known composition and of National Bureau of Standards analyzed rocks samples. Errors arising from stopping power variations were found to be small, in general not more than plus or minus 2%. These methods exactly complement the x-ray fluorescence technique, filling in the region inaccessible to the x-ray method. Used together, the methods can provide rapid instrumental analysis for virtually all elements in the periodic table to moderate sensitivity. Although sedimentary rocks were analyzed by this method, it is applicable (with due consideration for stopping power) to many other types of materials. (auth)
- Research Organization:
- Socony Mobil Oil Co., Inc., Dallas
- NSA Number:
- NSA-15-005969
- OSTI ID:
- 4082003
- Journal Information:
- Nuclear Instr. & Methods, Journal Name: Nuclear Instr. & Methods Vol. Vol: 9
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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