Instrumental neutron activation analysis: A valuable link in chemical metrology.

Autor: Zeisler, R., Lindstrom, R.M., Greenberg, R.R.
Předmět:
Zdroj: Journal of Radioanalytical & Nuclear Chemistry; Feb2005, Vol. 263 Issue 2, p315-319, 5p
Abstrakt: The exact probability density function for paired counting can be expressed in terms of modified Bessel functions of integral order when the expected blank count is known. Exact decision levels and detection limits can be computed in a straightforward manner. For many applications perturbing half-integer corrections to Gaussian distributions yields satisfactory results for decision levels. When there is concern about the uncertainty for the expected value of the blank count, a way to bound the errors of both types using confidence intervals for the expected blank count is discussed. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index