Titlebook: Worked Examples in X-Ray Analysis; R. Jenkins,J. L. Vries Book 1970 Springer Science+Business Media New York 1970 X-ray.spectrometry

fatty-streak

Counting statistics — variation of standard deviation with counting timeA A certain analysis line gave 800 c/s under certain instrumental conditions. Given that the standard deviation (σ) of a given number of counts (.) is equal to √., calculate the standard deviation expected in a counting time of 20 seconds.

頭盔

LUDE

R. Jenkins,J. L. de Vriestion in the time and STFT domains. In this chapter, we exploit the spatial information available from signals picked up by a determined number of microphones at different positions in the acoustics space in order to mitigate the noise effect. The processing is performed in the STFT domain.

Feature

R. Jenkins,J. L. de Vries the procedure of Chap.?., by taking now into account the bounds of the internal voltage signals of the FPAA board. The implementation is based on a FPAA device produced by ANADIGM: the AN221E04 FPAA [.].

歸功于

窗簾等

temperate

敘述

青春期

易怒

Trace analysis — derivation of detection limit expressionn which defines the lower limit of detection in terms of the analysis time ., the background counting rate .. and the response . of an element given in c/s per%. Remember that trace analysis always requires two measurements, i.e. peak plus background.