Experiment Proposal - opera - Infn

Special attention has to be paid to the temperature control and to the electric power, since each
S-UTS requires about 3 kW . In addition, a computer network infrastructure is required. The scanning
rooms where the Track Selectors operate have to be clean and have controlled temperature and humidity.
The floor has to be rigid to avoid vibrations while moving the microscope stages and the objective lenses.
The number of the required S-UTS systems is given inSection6. Asmallcomputer room is also needed
for monitoring and controlling the station operation as well as for the online data storage.
The Emulsion Readout Facility
for Vertex Location
planned at Nagoya University
S-UTS and UTS
for Scan Back in a brick
and Vertex Confirmation
Stock Room for Emulsion Films
Computer Room for Online Monitoring
S-UTS
for General Scan
on SS and VETO films
S-UTS and UTS systems are in a Clean Room
Figure 180: Illustration of a station for vertex location planned at Nagoya University. 10 S-UTS are
assigned for general scan for SS and VETO films. 3 UTS are for scan back and 3 S-UTS for vertex
confirmation. The S-UTS systems for vertex confirmation are used for full data taking over night.
In order to operate such a station, two 8-hours shift per day are needed each with two operators. The
S-UTS systems can perform unattended scanning of VETO and SS over night (the remaining 8 hours).
One physicist on shift is needed to monitor the station performance. A specific effort of coordination of
the shift acitivities is therefore required and has to be supported by the Collaboration.
Stations for other purposes do not require such a large capability as for the vertex location. Stations
for full data taking require a relatively large infrastructure, while stations for high accuracy measurements
(for special events) and for cross-check analysis of candidates could be well located in several small
laboratories, since they only process a small fraction of events. The required manpower obviously depends
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