Köln 2004 – scientific programme
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HK: Physik der Hadronen und Kerne
HK 18: Instrumentation and Applications II
HK 18.4: Talk
Tuesday, March 9, 2004, 16:15–16:30, C
New VHDL design for the HADES TOF Trigger Unit — •T. Pérez — II. Physikalisches Institut, Universität Gießen
The HADES spectrometer is intended to investigate the dilepton production especially from vector meson decays. The low branching ratios of vector mesons into dileptons, in the order of 10−5. To reach the necesary amount of statistics it is necessary the use high reaction rates up to 105 central heavy ion reactions per second. In order to reduce such an amount of data a very sofisticated online trigger system is used. With a combination of trigger several modules for distribution (CTU and DTU) and detector specific processing (IPUs), maximun speed the goal. That lead us to upgrade our Detector specific Trigger Units to newer, more flexible and faster design. And, finaly to adopt VHDL,the standard high level description language in electronics, as a tool to reach that goal.