BEST
User’s Manual
Introduction
9
1.
Introduction
The
BEST
(Beamline Enhanced Stabilization Technology) is a software and
instrumentation suite, which was especially designed to control and stabilize the
intensity (I
0
) and position (horizontal and vertical) of the photon beam in synchrotron
radiation X-ray beamlines.
The
BEST
instrumentation building blocks are:
-
the
readout
block – i.e.
TetrAMM
device;
-
the
control and interface
block – i.e.
BEST
Central Unit;
-
the
actuator
block – i.e.
PreDAC
device.
A simplified block diagram of the
BEST
architecture is shown in the following
figure:
Figure 1
: Simplified architecture of the
BEST
instrumentation suite.
In order to control and stabilize the X-ray it is necessary to determinate the position
and intensity of the beam. For this reason the first building block of the
BEST
system is a readout device called
TetrAMM
, which is a picoammeter instrument
with high sampling speed connected to a phBPM (photon Beam Position Monitor).
Beamline
Control System
BEST
Control and
Interface Unit
TetrAMM
Readout
PreDAC
Actuator