A DAQ unit consists of four DAQ-Components, such as a
gatherer, a dispatcher, a logger and a monitor. The gatherer reads
data from readout modules and sends the data to the dispatcher
The dispatcher relays it to the logger and the monitor. The logge
stores the data to hard disks, while the monitor analyzes the data
yielding histograms in PNG format for online monitoring via
the Web browser. The DAQ-operator is a controller of the
DAQ-Components. Fig. 2 shows the schematic of basic setup o
PSD DAQ system. A PSD readout module, called NEUNET [6]
receives signals from eight PSDs and digitizes them to make even
data (8 bytes/event). A DAQ unit on a PC reads out event data from
NEUNET modules via a network switch and stores them on hard
disks. The basic setup with a DAQ unit is in charge of taking data
from a maximum of 20 NEUNET modules (160 PSDs). If there are
more than 160 PSDs, another DAQ unit is added in parallel. Fig. 3
shows the schematic of current setup of iMATERIA. Eight DAQ
units are arranged in parallel, corresponding to VMEbus crates
(total 102 NEUNETs), with a DAQ-operator.
A DAQ unit consists of four DAQ-Components, such as a
gatherer, a dispatcher, a logger and a monitor. The gatherer reads
data from readout modules and sends the data to the dispatcher
The dispatcher relays it to the logger and the monitor. The logge
stores the data to hard disks, while the monitor analyzes the data
yielding histograms in PNG format for online monitoring via
the Web browser. The DAQ-operator is a controller of the
DAQ-Components. Fig. 2 shows the schematic of basic setup o
PSD DAQ system. A PSD readout module, called NEUNET [6]
receives signals from eight PSDs and digitizes them to make even
data (8 bytes/event). A DAQ unit on a PC reads out event data from
NEUNET modules via a network switch and stores them on hard
disks. The basic setup with a DAQ unit is in charge of taking data
from a maximum of 20 NEUNET modules (160 PSDs). If there are
more than 160 PSDs, another DAQ unit is added in parallel. Fig. 3
shows the schematic of current setup of iMATERIA. Eight DAQ
units are arranged in parallel, corresponding to VMEbus crates
(total 102 NEUNETs), with a DAQ-operator.
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