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Delayline Detector DLD4040 Manual
7.1 Pulse Processing Electronics ACU 3.4.2
The pulse processing electronics ACU (Amplifier-CFD-Unit) and AU (Amplifier-Unit) hold all devices like
the amplifiers, pulse shapers, and constant fraction discriminators to turn the analogue pulses from the
detector into digital pulses suitable for the Time-to-Digital Converter. Pulse decoupling is either performed
within the pulse processing electronics or directly in-vacuum, depending on detector type and layout.
Some pulse processing electronics also contain an integrated high voltage power supply for the complete
detector. This also depends on the layout of the detector as well as the pulse processing electronics.
The ACU 3.4.2 contains the amplifiers, pulse shapers and constant fraction discriminators for signal
processing.
Figure 12: Layout of ACU 3.4.2.
1. 4x SMB sockets for signal transfer from SMB feedthrough
2. Hole for orientation pin from SMB feedthrough
3. Clip for fastening ACU to detector flange
4. Connection socket for DLD readout cable
The ACU can be plugged directly onto the 4-fold SMB feedthroughs.
Fasten the two clips of the ACU to fix it to the detector.
shows the layout of the ACU 3.4.2.
Hold the ACU straight and plug it very carefully.
The middle pins of the SMB connectors in the 4-fold SMB feedthrough can be damaged
when holding the ACU not straight while plugging.
DLD4040 R2.55 & R3.54 Manual | Surface Concept GmbH
7 Pulse Processing
