R3B Heavy Ion Tracking - GSI Webserver WWW-WIN
R3B Heavy Ion Tracking - GSI Webserver WWW-WIN
R3B Heavy Ion Tracking - GSI Webserver WWW-WIN
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Detector Production<br />
Signal Properties<br />
Task List<br />
• only 50% good detectors (material quality?)<br />
• Some samples show persistent photo current (PPC) after irradiation<br />
• photo lithography (works perfect on 1’’ detectors), large area and<br />
d = 50 µm samples still under investigation .<br />
• bonding on growth side still not reliable<br />
• coupling between channels (locate)<br />
• time resolution worse than expected (detailed investigations)<br />
• walk correction should be possible with APV readout<br />
• new bridge board with faster data transfer and more BG<br />
suppression (barycenter calculation on board....).<br />
<strong>R3B</strong> - meeting Oct 2007@ <strong>GSI</strong>
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