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Conférences et séminaires » Séminaire présenté par le Dr. Andrea S. BROGNA

Séminaire présenté par le Dr. Andrea S. BROGNA

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n-XYTER, a purely data driven front-end ASIC dedicated to high rates, multi channel neutron detector readout.

Dr. Andrea S. BROGNA
(Hahn-Meitner Institut, Berlin, Kirchhoff Institut für Physik, Universität Heidelberg)

Le Jeudi 15 mars 2007 à 14h15

Salle de cours MASTERS (ex DEA) - Bâtiment 26
Campus CNRS, IPHC, 23 rue du Loess, Strasbourg-Cronenbourg

Abstract :

For a new generation of 2-D neutron detectors targeted in the framework of the EU NMI3 project DETNI, a novel readout architecture has been developed and implemented in the 128-channel front-end chip n-XYTER.

Scattered neutrons have a Poisson distribution in time. Signals registered in the detector are asynchronous in nature, contrary to typical high energy physics experimental setups. Moreover to reconstruct events with moderate or high data rates, a large bandwidth of the acquisition system and additional complexity in the electronics to de-randomize and process the data is required. The initial design specifications aimed for the readout of 3 different types of detectors (silicon microstrips and hybrid MSGCs with Gadolinium converter and gas electron multiplier based CASCADE detectors). Each of them is characterized by a high number of readout channels per coordinate (up to 640 x 640) and a very high event rate. The goal is to build a system capable of event rates up to 100 MHz at 10% data loss, which requires a time resolution of <=> javascript:AnnuIPHC(’Colledani+Claude’)]