SPECS PHOIBOS Series User Manual

Single and Multichannel Detector (SCD) / (MCD)
N '
1
/ N '
2
= A 1− A ×× N '
1
(21)
Therefore, from a spectral ratio plot the dead time can be determined. The detection
efficiency N’1 / N1 can now be calculated
N '
1
/ N
1
= N '
1
/ N '
2
×1− N '
2
/ A
(22)
Figure 17: Linearity Plot for the new Extended Range CEM
The count rate N’ was measured for different beam currents I. From the low count rate
region, the conversion factor c (N = c× I) can be calculated.
PHOIBOS 31

SPECS PHOIBOS Series Specifications

General

Brand	SPECS
Model	PHOIBOS Series
Category	Measuring Instruments
Language	English