Bruker QUANTAX EDS User Manual

User Manual 3 The QUANTAX EDS System
16
Fig. 3.1-2 Signal processing unit SVE 6
Spectrometry signal processing. Inevitable
electronic noise requires the detector signal to be
averaged over a certain time for the purpose of pulse
height analysis. This averaging or noise filtering is
performed by the so-
called signal shaper. The
necessary time per pulse (filter
time) limits the
maximum acquisition speed of a spectrometer. The
applicable filter
times are determined by the
properties of the detector noise and the required
energy resolution (peak separation).
Pulse throughput.
With optimum signal shaper the
QUANTAX the XFlash
®
can output 20 000 to 130
000
cps, depending on the type of detector used
(refer to
the detector’s hardware manual for specifications)
.
Faster than o
ptimum shapers can be selected at the
expense of energy resolution, which is acceptable for
ultrahigh-speed applications like element mapping.
The QUANTAX spectrometer electronics is
configured according to the chosen detector and
QUANTAX system level.
3.1.3
Spectrometry Data
Interface and EM
Control
Data interface.
The proprietary Bruker MegaLink
high-
speed data interface transfers the spectrometer
data in real time to the QUANTAX server. The PCI
plug-in board Bruker IO-
Scan can connect up to 4
spectrometers simul
taneously. Bruker MegaLink is a
serial interface protocol featuring full galvanic
isolation for improved noise immunity at connection
length of up to 30 m. For basic spectrometer
functions that do not require real time spectrometry
a standard computer
interface (RS232) can be used
as an alternative.

Bruker QUANTAX EDS Specifications

General

Brand	Bruker
Model	QUANTAX EDS
Category	Laboratory Equipment
Language	English